Updated on 2026/04/06

写真a

 
YAMANAKA ICHIRO
 
Organization
Office of Research and Innovation Specially Appointed Professor
Title
Specially Appointed Professor
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Degree

  • Master of Engineering ( Tokyo Institute of Technology )

  • Doctor of Engineering ( Tokyo Institute of Technology )

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Catalyst and resource chemical process

  • Nanotechnology/Materials / Structural organic chemistry and physical organic chemistry

Education

  • Tokyo Institute of Technology   Graduate School, Division of Science and Engineering

    - 1991.3

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  • Tokyo Institute of Technology   Science of Engineering   Chemical Engineering

    - 1988.3

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    Country: Japan

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  • Tokyo Institute of Technology   School of Engineering   Dept. of Chemical Engineering

    - 1986.3

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    Country: Japan

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Research History

  • Institute of Science Tokyo   Professor

    2024.10

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  • Tokyo Institute of Technology   Professor

    2013.4

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  • 北海道大学 触媒化学研究センター 客員助教授

    2002

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  • 東京工業大学 工学部 助教授

    1997.8

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  • 東京工業大学 工学部 助手

    1991.4

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Professional Memberships

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Committee Memberships

  •   触媒学会会長  

    2022 - 2023   

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  •   JST さきがけ 調和物質変換 総括  

    2022   

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  •   触媒学会副会長  

    2021 - 2022   

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  • 触媒学会   企画担当理事  

    2005 - 2007   

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    Committee type:Academic society

    触媒学会

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Papers

  • The Solid-Polymer-Electrolyte Coelectrolysis of O 2 and Water to Pure 26 wt % H 2 O 2 Aqueous Solutions with 81% Current Efficiency Reviewed

    Ichiro Yamanaka, Yuhei Kojima, Ryuji Otsuki, Yuto Sekine, Takuya Yamashita, Shion Yoneya, Shoji Iguchi, Masanori Yamamoto

    ACS Sustainable Chemistry & Engineering   13 ( 46 )   19966 - 19976   2025.11

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acssuschemeng.5c06591

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  • Electrocatalysis of the Ni-/Ti-Mesh Anode for Electro-Reforming of Urea Aqueous Solutions to H2 by the SPE Electrolysis Reviewed

    Ayumu Okano, Shoji Iguchi, Takanobu Kajino, Yasuyuki Hikita, Go Iijima, Ichiro Yamanaka

    ACS Applied Energy Materials   8 ( 13 )   9455 - 9461   2025.6

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.5c01028

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  • Effects of Carbon Materials on Formation of CoN4Cx Active Site of Co-P4VPy/Carbon Catalysts for Selective CO2 Electroreduction to CO Reviewed

    Siyuan Jia, Shoji Iguchi, Ichiro Yamanaka

    Electrocatalysis   16 ( 4 )   601 - 609   2025.3

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Development of active electrocatalyst for CO2 reduction to useful chemicals would be essential factor to achieve the carbon neutral society. The Co poly-4-vinyl-pyridine (P4VPy)/Ketjenblack (KB) activated thermally was found for an active electrocatalyst in the electroreduction of CO2 with water by the solid-polymer-electrolyte, SPE, electrolysis cell. Various carbon supports were applied instead of KB. Contents of CoN4Cx, CoO and Co0 compounds on activated electrocatalysts were determined by linear combination fitting, LCF, of X-ray absorption near edge structure, XANES. Pyrolysis of the catalyst precursor for activation was essential and kinds of carbon supports strongly influenced formation of the Co compounds. It was revealed that the content of CoN4Cx related to the current efficiency of the CO formation and that of CoO and Co0 related the H2 formation.

    Graphical Abstract

    Relation between Faraday efficiency to CO and content of CoN4Cx

    DOI: 10.1007/s12678-025-00945-7

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    Other Link: https://link.springer.com/article/10.1007/s12678-025-00945-7/fulltext.html

  • Electro-Epoxidation of Propylene in the Gas Phase with Solid-Polymer-Electrolyte Water Electrolysis Reviewed

    Minori Saito, Yuta Kojima, Shoji Iguchi, Ichiro Yamanaka

    ACS Applied Materials & Interfaces   16 ( 49 )   67545 - 67552   2024.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsami.4c10085

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  • What is the Active Structure for High-Temperature Direct Dehydrogenative Conversion of Methane by the Supported NiP Catalysts - An in situ XAFS Study Reviewed

    Qing Wang, Shoji Iguchi, Ichiro Yamanaka, Jin Ohta, Takahiro Wada, Motohiro Uo, Daiki Kido, Masao Kimura, Kiyotaka Asakura

    The Journal of Physical Chemistry C   2024.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.jpcc.3c07695

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  • Effects of Metal–Oxygen Coordination in Pt–Ru–Sn Electrocatalyst in the Electrochemical Reforming of Aqueous EtOH in a Solid-Polymer-Electrolyte Electrolysis Cell Reviewed

    Jun Jeffri Basa Lidasan, Yuhei Kojima, Shoji Iguchi, Ichiro Yamanaka

    ACS Applied Energy Materials   7 ( 2 )   582 - 593   2024.1

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.3c02496

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  • Novel ruthenium-based catalysts with atomic dispersion for oxygen evolution reaction in water electrolysis Reviewed

    Kuo-Wei Liao, Hsueh-Yu Chen, Wen-Hui Wei, Guan-Cheng Chen, Ichiro Yamanaka, Bo-Tau Liu, Ting-Fu Hong, Tai-Chin Chiang, Hsin-Chih Huang, Chen-Hao Wang

    Materials Today Chemistry   35   101857 - 101857   2024.1

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.mtchem.2023.101857

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  • The Effect of Structural Change during the Activation Process on the Catalysis of In/SiO2 Nonoxidative Coupling of Methane: An Operando XAFS Study Reviewed

    Takahiro Wada, Upendar Kashaboina, Yuta Nishikawa, Yuki Wakisaka, Deling Bao, Satoru Takakusagi, Yuta Inami, Fumiya Kuriyama, Arnoldus Lambertus Dipu, Hitoshi Ogihara, Shoji Iguchi, Ichiro Yamanaka, Daiki Kido, Masao Kimura, Motohiro Uo, Kiyotaka Asakura

    The Journal of Physical Chemistry C   2023.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpcc.3c04539

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  • Solid–Polymer–Electrolyte Electrolysis of Urea Aqueous Solutions for Hydrogen Synthesis Reviewed

    Ayumu Okano, Shoji Iguchi, Takanobu Kajino, Yasuyuki Hikita, Go Iijima, Ichiro Yamanaka

    ACS Sustainable Chemistry & Engineering   11 ( 34 )   12595 - 12601   2023.8

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acssuschemeng.3c02016

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  • Selective conversion of methane to ethane and hydrogen over In/molecular-sieve-3A catalyst Reviewed

    Ayumi Nakaya, Ayako Suzuki, Shoji Iguchi, Ichiro Yamanaka

    Catalysis Science & Technology   13 ( 23 )   6712 - 6717   2023

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    The molecular-sieve-3A material functioned as a good support for the indium liquid metal catalyst for the dehydrogenative conversion of methane (DCM) to ethane, ethylene, and H2 with 100% selectivity at 873 K.

    DOI: 10.1039/d3cy01217d

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  • Toward Computational Screening of Bimetallic Alloys for Methane Activation: A Case Study of MgPt Alloy Reviewed

    Masataka Yoshida, Yuta Tsuji, Shoji Iguchi, Hikari Nishiguchi, Ichiro Yamanaka, Hideki Abe, Takashi Kamachi, Kazunari Yoshizawa

    ACS Catalysis   12 ( 15 )   9458 - 9472   2022.7

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acscatal.2c01601

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  • Mechanistic Insights into the Electrocatalytic Hydrogenation of Alkynes on Pt-Pd Electrocatalysts in a Proton-Exchange Membrane Reactor Reviewed

    Shuji Nogami, Naoki Shida, Shoji Iguchi, Kensaku Nagasawa, Hideo Inoue, Ichiro Yamanaka, Shigenori Mitsushima, Mahito Atobe

    ACS Catalysis   12 ( 9 )   5430 - 5440   2022.5

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acscatal.2c01594

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  • Pure Hydrogen Production by Aqueous Ethanol Electrolysis on Pt–Ru–O Anodes in a Solid Polymer Electrolyte Electrolysis Cell Reviewed

    Jun Jeffri Basa Lidasan, Shoji Iguchi, Ichiro Yamanaka

    ACS Sustainable Chemistry & Engineering   10 ( 9 )   2921 - 2929   2022.2

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acssuschemeng.1c07476

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  • CoN4Cx Electrocatalyst for CO2 Reduction to CO by the Solid Polymer Electrolyte Electrolysis Reviewed

    Shoji Iguchi, Siyuan Jia, Yuji Ogishima, Yuki Senba, Hitoshi Ogihara, Ichiro Yamanaka

    Energy & Fuels   36 ( 4 )   2300 - 2304   2022.2

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.energyfuels.1c04277

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  • Direct epoxidation of propylene with water at a PtOx anode using a solid-polymer-electrolyte electrolysis cell Reviewed

    Shoji Iguchi, Masashi Kataoka, Ryosuke Hoshino, Ichiro Yamanaka

    Catalysis Science & Technology   12 ( 2 )   469 - 473   2022

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    Direct electro-epoxidation of C3H6 with water was achieved using a solid polymer electrolyte (SPE) electrolysis cell.

    DOI: 10.1039/d1cy01888d

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  • One-step Hydrothermal Synthesis of Unsupported Nickel Phosphide Catalyst for Direct Dehydrogenative Conversion of Methane to Hydrocarbons Reviewed

    Arnoldus Lambertus Dipu, Ichiro Yamanaka

    Chemistry Letters   50 ( 10 )   1762 - 1764   2021.10

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:The Chemical Society of Japan  

    DOI: 10.1246/cl.210356

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  • X-ray absorption fine structure studies on nickel phosphide catalysts for the non-oxidative coupling of methane reaction using a theoretical model Reviewed

    Md Harun Al Rashid, Arnoldus Lambertus Dipu, Yuta Nishikawa, Hitoshi Ogihara, Yuta Inami, Shoji Iguchi, Ichiro Yamanaka, Shinchi Nagamatsu, Daiki Kido, Bing Hu, Kiyotaka Asakura

    Radiation Physics and Chemistry   189   109727 - 109727   2021.7

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.radphyschem.2021.109727

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  • Mechanochemical Route for Preparation of MFI-Type Zeolites Containing Highly Dispersed and Small Ce Species and Catalytic Application to Low-Temperature Oxidative Coupling of Methane Reviewed

    Mizuho Yabushita, Motohiro Yoshida, Ryota Osuga, Fumiya Muto, Shoji Iguchi, Shuhei Yasuda, Atsushi Neya, Mami Horie, Sachiko Maki, Kiyoshi Kanie, Ichiro Yamanaka, Toshiyuki Yokoi, Atsushi Muramatsu

    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   60 ( 28 )   10101 - 10111   2021.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.iecr.1c01664

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  • Development of Highly Active Silica-Supported Nickel Phosphide Catalysts for Direct Dehydrogenative Conversion of Methane to Higher Hydrocarbons Reviewed

    Arnoldus Lambertus Dipu, Yuta Nishikawa, Yuta Inami, Shoji Iguchi, Ichiro Yamanaka

    Catalysis Letters   2021.4

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s10562-021-03612-w

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    Other Link: http://link.springer.com/article/10.1007/s10562-021-03612-w/fulltext.html

  • Erratum: Active phase structure of the SiO2-supported Nickel Phosphide Catalysts for Non-oxidative Coupling of Methane (NOCM) (e-Journal of Surface Science and Nanotechnology (2020) 18 (24-27) DOI: 10.1380/ejssnt.2020.24) Reviewed

    M. H. Al Rashid, A. Dipu, Y. Nishikawa, H. Ogihara, Y. Inami, S. Obuchi, I. Yamanaka, S. Nagamatsu, D. Kido, K. Asakura

    e-Journal of Surface Science and Nanotechnology   19   69   2021

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Vacuum and Surface Science  

    DOI: 10.1380/EJSSNT.2021.69

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  • Direct Nonoxidative Conversion of Methane to Higher Hydrocarbons over Silica-​Supported Nickel Phosphide Catalyst Reviewed

    Arnoldus Lambertus Dipu, Shunya Ohbuchi, Yuta Nishikawa, Shoji Iguchi, Hitoshi Ogihara, Ichiro Yamanaka

    ACS Catalysis   10 ( 1 )   375 - 379   2020.12

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acscatal.9b03955

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  • Catalytic Mechanism of Liquid-Metal Indium for Direct Dehydrogenative Conversion of Methane to Higher Hydrocarbons Reviewed

    Yuta Nishikawa, Yuhki Ohtsuka, Hitoshi Ogihara, Rattanawalee Rattanawan, Min Gao, Akira Nakayama, Jun-ya Hasegawa, Ichiro Yamanaka

    ACS Omega   5 ( 43 )   28158 - 28167   2020.11

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsomega.0c03827

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  • The Active Center of Co–N–C Electrocatalysts for the Selective Reduction of CO2 to CO Using a Nafion-H Electrolyte in the Gas Phase Reviewed

    Hitoshi Ogihara, Tomomi Maezuru, Yuji Ogishima, Yuta Inami, Mayuko Saito, Shoji Iguchi, Ichiro Yamanaka

    ACS Omega   5 ( 31 )   19453 - 19463   2020.8

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    DOI: 10.1021/acsomega.0c01510

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  • Green Synthesis of Methyl Formate via Electrolysis of Pure Methanol Reviewed

    Ryoji Kishi, Hitoshi Ogihara, Miru Yoshida-Hirahara, Kazuya Shibanuma, Ichiro Yamanaka, Hideki Kurokawa

    ACS Sustainable Chemistry & Engineering   8 ( 31 )   11532 - 11540   2020.8

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    Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acssuschemeng.0c02281

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  • Disposition of Iridium on Ruthenium Nanoparticle Supported on Ketjenblack: Enhancement in Electrocatalytic Activity toward the Electrohydrogenation of Toluene to Methylcyclohexane Reviewed

    Yuta Inami, Shoji Iguchi, Shinichi Nagamatsu, Kiyotaka Asakura, Ichiro Yamanaka

    ACS Omega   5 ( 2 )   1221 - 1228   2020.1

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society  

    DOI: 10.1021/acsomega.9b03757

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  • Active Phase Structure of the SiO2-Supported Nickel Phosphide catalysts for Non-Oxidative Coupling of Methane Reactions Reviewed

    M. H. Al Rashid, A. Dipu, Y. Nishikawa, H. Ogihara, Y. Inami, S. Obuchi, I. Yamanaka, S. Nagamatsu, D. Kido, K. Asakura

    e-Journal of Surface Science and Nanotechnology   18   24 - 27   2020

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    Publishing type:Research paper (scientific journal)   Publisher:Surface Science Society Japan  

    DOI: 10.1380/ejssnt.2020.24

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  • Theoretical Study on the C–H Activation of Methane by Liquid Metal Indium: Catalytic Activity of Small Indium Clusters Reviewed

    Yuhki Ohtsuka, Yuta Nishikawa, Hitoshi Ogihara, Ichiro Yamanaka, Manussada Ratanasak, Akira Nakayama, Jun-ya Hasegawa

    The Journal of Physical Chemistry A   2019.9

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    Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/acs.jpca.9b06374

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  • Synergy of Ru and Ir in the Electrohydrogenation of Toluene to Methylcyclohexane on a Ketjenblack-Supported Ru-Ir Alloy Cathode Reviewed

    Yuta Inami, Hitoshi Ogihara, Shinichi Nagamatsu, Kiyotaka Asakura, Ichiro Yamanaka

    ACS Catalysis   9   2448 - 2457   2019

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    DOI: 10.1021/acscatal.8b03610

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  • Metamorphosis-like Transformation during Activation of In/SiO2 Catalyst for Non-oxidative Coupling of Methane: In Situ X-ray Absorption Fine Structure Analysis Reviewed

    Deling Bao, Hiroko Ariga-Miwa, Satoru Takakusagi, Yuta Inami, Fumiya Kuriyama, Arnoldus Lambertus Dipu, Hitoshi Ogihara, Shoji Iguchi, Ichiro Yamanaka, Takahiro Wada, Kiyotaka Asakura

    Chemistry Letters   48 ( 9 )   1145 - 1147   2019

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/cl.190440

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  • Catalysis of liquid-metal indium for direct dehydrogenative conversion of methane into higher hydrocarbons Reviewed

    Yuta Nishikawa, Ayumi Nakaya, Hitoshi Ogihara, Yuki Ohtsuka, Akira Nakayama, Jun-ya Hasegawa, Shoji Iguchi, Ichiro Yamanaka

    12th Natural Gas Conversion Symposium 2019   263 - 266   2019

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:AIChE  

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  • Electrocatalytic Reduction of CO2 to CO and CH4 by Co-N-C Catalyst and Ni co-catalyst with PEM Reactor Reviewed

    Sato, Masato, Ogihara, Hitoshi, Yamanaka, Ichiro

    ISIJ International   59 ( 4 )   623 - 627   2019

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.2355/isijinternational.ISIJINT-2018-551

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  • Direct Synthesis of Pure H2O2 Aqueous Solution by CoTPP/Ketjen-Black Electrocatalyst and the Fuel Cell Reactor Reviewed

    T. Iwasaki, Y. Masuda, H. Ogihara, I. Yamanaka

    Elecrtocatalysis   9 ( 2 )   236 - 242   2018

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s12678-017-0444-0

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  • Electrocatalytic Activity of Co-4,4'dimethyl-2,2'-bipyridine Supported on Ketjenblack for Reduction of CO2 to CO Using PEM Reactor Reviewed

    Ogihara Hitoshi, Maezuru Tomomi, Ogishima Yuji, Yamanaka Ichiro

    Electrocatalysis   9 ( 2 )   220 - 225   2018

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    DOI: 10.1007/s12678-017-0419-1

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  • Effects of Carbon Supports on Ru Electrocatalysis for the Electrohydrogenation of Toluene to Methylcyclohexane Reviewed

    Yuta Inami, Hitoshi Ogihara, Ichiro Yamanaka

    Electrocatalysis   9 ( 2 )   212 - 212   2017.9

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s12678-017-0422-6

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    Other Link: http://link.springer.com/content/pdf/10.1007/s12678-017-0422-6.pdf

  • Liquid-Metal Indium Catalysis for Direct Dehydrogenative Conversion of Methane to Higher Hydrocarbons Reviewed

    Nishikawa Yuta, Ogihara Hitoshi, Yamanaka Ichiro

    CHEMISTRYSELECT   2 ( 16 )   4572 - 4576   2017.5

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-V C H VERLAG GMBH  

    Catalysts for dehydrogenative conversion of methane (DCM) to higher hydrocarbons are worthy of attention. Indium supported on silica (In/SiO2) was found for effective catalyst for the DCM reaction above 1023 K. Products were ethane, ethylene, acetylene, propylene, benzene, toluene, naphthalene and hydrogen. A highest selectivity of sum of products was 96% at 1098 K and a steady-state sum yield was 2.1% with 63% selectivity at 1173 K. Characterization studies using temperature-programed X-ray diffraction (TP-XRD) and scanning electron microscopy (SEM) indicated that the working state of indium catalyst was liquid metal. Effects of reaction temperature on the product distribution and studies of temperature-programed-reaction (TPR) indicated that liquid-metal indium activated methane and selectively converted to ethane. Higher hydrocarbons were produced from ethane in the gas phase without catalyst.

    DOI: 10.1002/slct.201700734

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  • Selective Electrohydrogenation of Toluene to Methylcyclohexane Using Carbon-Supported Non-Platinum Electrocatalysts in the Hydrogen Storage System Reviewed

    Inami Yuta, Ogihara Hitoshi, Yamanaka Ichiro

    CHEMISTRYSELECT   2 ( 5 )   1939 - 1943   2017.2

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    Electrochemical hydrogenation of toluene (TL) to methylcyclohexane (MCH) with water using a 50 wt% Pt/Ketjenblack (KB) cathode attracts much attention for the hydrogen storage system. We screened non-Pt cathodes and found that lower loading Ru/KB electrocatalyst was effective cathode for the galvanostatic hydrogenation of TL. Even at 1 wt% loading, the Ru/KB cathode was active for the hydrogenation though the working potential was much negative; on the other hand, a 1 wt% Pt/KB cathode was inactive under the same conditions. To improve electrocatalysis of Ru/KB at positive cathode potential, combination of Ru and other metals was studied for the hydrogenation and synergy of Ru and Ir was found. A 5 wt% Ru and 5 wt% Ir supported on KB cathode was as active as the 50 wt% Pt/KB cathode for the hydrogenation. On the basis of experimental facts, a model of reaction mechanism for the electrohydrogenation of TL to MCH applying hydrogen spill-over from Ir to Ru was proposed.

    DOI: 10.1002/slct.201602070

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  • A New Type Hydrogen Permeable Membrane and Application for H2O2 Synthesis Reviewed

    Yamanaka Ichiro, Satake Yuichiro, Pantira Privatananupunt, Hiraki Daisuke, Ogihara Hitoshi

    CHEMISTRYSELECT   2 ( 1 )   464 - 468   2017.1

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    Development of a hydrogen permeable membrane reactor in chemical process has been desired because of a great reduction of energy consumption. Previous studies were limited to Pd membranes. A new type of hydrogen permeable membrane layered three sheets (a reduction-Pt-catalyst sheet broken vertical bar a proton and electron co-conductive sheet broken vertical bar an oxidation-Ptcatalyst sheet) was developed. The middle sheet was prepared by casting a paste of carbon powder and Nafion solution. When a gas mixture of H-2 and He (1: 1) was introduced to the oxidation-catalyst compartment at 298 K, a high concentration of H-2 was observed in the reduction-catalyst compartment, a maximum H-2/He ratio as 217. H-2 selectively permeated through the membrane. This concept was applied for synthesis of H2O2. When O-2 and H-2 were respectively introduced to the Co-N -C reduction-catalyst and the Pt oxidation-catalyst, production of a pure H2O2 aqueous solution of 3.8 mol dm (-3) was succeeded with a good selectivity as 42% based on H2 at 278 K.

    DOI: 10.1002/slct.201601321

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  • Electrochemical Reduction of CO2 to CO by a Co-N-C Electrocatalyst and PEM Reactor at Ambient Conditions Reviewed

    Hitoshi Ogihara, Tomomi Maezuru, Yuji Ogishima, Ichiro Yamanaka

    CHEMISTRYSELECT   1 ( 17 )   5533 - 5537   2016.10

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/slct.201601082

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  • Electrosynthesis of diphenyl carbonate by homogeneous Pd electrocatalysts using Au nanoparticles on graphene as efficient anodes Reviewed

    Kanega Ryoichi, Ogihara Hitoshi, Yamanaka Ichiro

    Catalysis Science & Technology   6 ( 15 )   6002   2016

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    Authorship:Corresponding author   Publisher:Royal Society of Chemistry  

    DOI: 10.1039/c6cy00400h

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  • Electrosynthesis of diphenyl carbonate catalyzed by Pd2+/0 (in situ NHC) redox catalyst promoted at Au anode Reviewed

    Ryoichi Kanega, Hitoshi Ogihara, Ichiro Yamanaka, Ichiro Yamanaka

    Research on Chemical Intermediates   41   9497 - 9508   2015.12

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    c Springer Science+Business Media Dordrecht 2015. The effects of Au anodes on electrochemical carbonylation of phenol with CO (1 atm) to diphenyl carbonate (DPC) catalyzed by Pd (in situ NHC) electrocatalyst were studied under galvanostatic electrolysis conditions. Au supported on carbon materials (Au/carbon) were effective anodes for oxidation of the homogeneous Pd electrocatalyst. Various carbon materials, Vulcan XC-72 carbon black (XC72), activate carbon, Ketjenblack, and graphene nanoplatelets (graphene- 1, -2, -3) were tested as a support for Au. The Au/graphene-3 was the most effective anode for DPC formation. Effects of Au loadings and reducing agents (H2 and NaBH4) on the reactivity of the Au/graphene-3 anode for the DPC formation were studied and the materials were characterized using XRD spectroscopy and TEM analysis. These experimental facts indicated that small Au particles on the surface of graphene were superior for the DPC synthesis by the Pd (in situ NHC) electrocatalyst.

    DOI: 10.1007/s11164-015-1975-8

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  • Electrocatalysis of heat-treated cobalt-porphyrin/carbon for hydrogen peroxide formation Reviewed

    Ichiro Yamanaka, Ryo Ichihashi, Tatsuya Iwasaki, Naoya Nishimura, Toru Murayama, Wataru Ueda, Sakae Takenaka

    Electrochimica Acta   108   321 - 329   2013.10

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  • Pd(NHC) Electrocatalysis for Phosgene-Free Synthesis of Diphenyl Carbonate Reviewed

    Ryoichi Kanega, Tomohiko Hayashi, Ichiro Yamanaka

    ACS CATALYSIS   3 ( 3 )   389 - 392   2013.3

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    DOI: 10.1021/cs300725j

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  • Phosgene-Free Method for Diphenyl Carbonate Synthesis at the Pd0/Ketjenblack Anode Reviewed

    Toru Murayama, Tomohiko Hayashi, Ryoichi Kanega, Ichiro Yamanaka

    Journal of Physical Chemistry C   116 ( 19 )   10607 - 10616   2012.5

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    DOI: 10.1021/jp300809s

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  • Study of Direct Synthesis of Hydrogen Peroxide Acid Solutions at a Heat-Treated MnCl-Porphyrin/Activated Carbon Cathode from H-2 and O-2 Reviewed

    Ichiro Yamanaka, Takeshi Onizawa, Hirobumi Suzuki, Noriko Hanaizumi, Naoya Nishimura, Sakae Takenaka

    JOURNAL OF PHYSICAL CHEMISTRY C   116 ( 7 )   4572 - 4583   2012.2

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    DOI: 10.1021/jp207679e

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  • Performance analysis of active carbon recycling energy system Reviewed

    Yukitaka Kato, Toru Obara, Ichiro Yamanaka, Shinsuke Mori, Arnoldus Lambertus Dipu, Junichi Ryu, Yutaka Ujisawa, Masaaki Suzuki

    PROGRESS IN NUCLEAR ENERGY   53 ( 7 )   1017 - 1021   2011.9

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    DOI: 10.1016/j.pnucene.2011.04.024

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  • Catalytic neutral hydrogen peroxide synthesis from O2 and H2 by PEM fuel cell Reviewed

    Toru Murayama, Satoshi Tazawa, Sakae Takenaka, Ichiro Yamanaka

    Catalysis Today   164 ( 1 )   163 - 168   2011.4

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    DOI: 10.1016/j.cattod.2010.10.102

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  • Electrosynthesis of Neutral H2O2 Solution from O2 and Water at a Mixed Carbon Cathode using an Exposed SPE Electrolysis Cell Reviewed

    Toru Murayama, Ichiro Yamanaka

    The Journal of Physical Chemistry C   115 ( 13 )   5792 - 5799   2011.4

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    DOI: 10.1021/jp1109702

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  • Catalytic synthesis of neutral H2O2 solution by a fuel cell with a CoN2Cx/carbon cathode Reviewed

    Ichiro Yamanaka, Satoshi Tazawa, Toru Murayama

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   241   2011.3

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  • Direct Synthesis of Diphenyl Carbonate by Mediated Electrocarbonylation of Phenol at Pd2+-Supported Activated Carbon Anode Reviewed

    Toru Murayama, Tomohiko Hayashi, Yuji Arai, Ichiro Yamanaka

    Electrochimica Acta   56 ( 7 )   2926 - 2933   2011.2

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    DOI: 10.1016/j.electacta.2010.12.087

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  • A Fuel-Cell Reactor for the Direct Synthesis of Hydrogen Peroxide Alkaline Solutions from H-2 and O-2 Reviewed

    Ichiro Yamanaka, Takeshi Onisawa, Toshikazu Hashimoto, Toru Murayama

    CHEMSUSCHEM   4 ( 4 )   494 - 501   2011

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    DOI: 10.1002/cssc.201000263

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  • Synergistic Decomposition of CO2 by Hybridization of a Dielectric Barrier Discharge Reactor and a Solid Oxide Electrolyser Cell

    Yuki Tagawa, Shinsuke Mori, Masaaki Suzuki, Ichiro Yamanaka, Toru Obara, Junichi Ryu, Yukitaka Kato

    KAGAKU KOGAKU RONBUNSHU   37 ( 2 )   114 - 119   2011

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    DOI: 10.1252/kakoronbunshu.37.114

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  • Oxidation of alkane using Pt/Eu2O3/TiO2/SiO2 catalyst with O2 and H2 in acetic acid under mild conditions

    Ichiro Yamanaka, Yuta Suzuki, Masashi Toida

    Catalysis Today   157 ( 1-4 )   286 - 290   2010.11

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    DOI: 10.1016/j.cattod.2010.01.038

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  • Effect of an Oxides Composite Support of Ce(Sm)O<sub>3</sub>-La(Sr)CrO<sub>3</sub> on Pd-Ni Alloy for Decomposition Activity of CH<sub>4</sub>

    Ichiro Yamanaka, Yuta Nabae, Takeo Ito

    Advances in Science and Technology   65   215 - 224   2010.10

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    A Pd-Ni/La(Sr)CrO3-Ce(Sm)O2 composite anode showed good performance for solid oxide fuel cell reactions with dry CH4. Compositions of Pd and Ni in the Pd-Ni/La(Sr)CrO3-Ce(Sm)O2 composite anode affected the electrochemical oxidation catalysis of dry CH4. The Pd and Ni ratios from 50:50 to 75:25 were suitable for the oxidation. The Pd-Ni/La(Sr)CrO3-Ce(Sm)O2 composite anode showed the high tolerance to the carbon deposition under closed and open circuit conditions. A Pd-Ni/Ce(Sm)O2 catalyst showed very low catalytic activity for decomposition of dry CH4. A Pd-Ni/SiO2 catalyst showed very high catalytic activity for the decomposition of dry CH4 and a large amount of deposited carbon formed. The Pd-Ni particles on SiO2 were quite multifaceted from TEM-EDS observation. On the other hand, the Pd-Ni particles on Ce(Sm)O2 support had a spherical shape and doping of Ce and Sm was confirmed. This nature should inhibit the formation of particular plane that is essential for the carbon fiber formation. The detail function of Ce(Sm)O2 and La(Sr)CrO3 supports was discussed.

    DOI: 10.4028/www.scientific.net/ast.65.215

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  • Direct Synthesis of Diphenyl Carbonate by Electrocarbonylation at a Pd2+-supported Anode Reviewed

    Toru Murayama, Yuji Arai, Tomohiko Hayashi, Ichiro Yamanaka

    Chemistry Letters   39 ( 4 )   418 - 419   2010.4

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    DOI: 10.1246/cl.2010.418

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  • Neutral H2O2 Synthesis by Electrolysis of O2 and Water Reviewed

    Toru Murayama, Ichiro Yamanaka

    ECS Transactions   25 ( 18 )   19 - 24   2010.2

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    DOI: 10.1149/1.3312761

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    Other Link: https://iopscience.iop.org/article/10.1149/1.3312761

  • Catalytic Synthesis of Neutral Hydrogen Peroxide at a CoN2Cx Cathode of a Polymer Electrolyte Membrane Fuel Cell (PEMFC) Reviewed

    Ichiro Yamanaka, Satoshi Tazawa, Toru Murayama, Tatsuya Iwasaki, Sakae Takenaka

    CHEMSUSCHEM   3 ( 1 )   59 - 62   2010

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    DOI: 10.1002/cssc.200900246

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  • Study of the Electrochemical Carbonylation of Ethanol and Ethylene at Pd/C Anode Reviewed

    A. Funakawa, T. Murayama, I. Yamanaka

    ECS Transactions   25 ( 18 )   35 - 40   2010

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    DOI: 10.1149/1.3312763

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  • Alloying effects of Pd and Ni on the catalysis of the oxidation of dry CH4 in solid oxide fuel cells Reviewed

    Yuta Nabae, Ichiro Yamanaka

    APPLIED CATALYSIS A-GENERAL   369 ( 1-2 )   119 - 124   2009.11

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    DOI: 10.1016/j.apcata.2009.09.007

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  • Oxidation of adamantane with O2 catalysed by VO(acac)2 and reactivity of active species in acetic acid Reviewed

    Hirokazu Kobayashi, Ichiro Yamanaka

    Journal of Molecular Catalysis A: Chemical   294 ( 1-2 )   37 - 42   2008.10

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    DOI: 10.1016/j.molcata.2008.08.002

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  • High production of adamantane oxygenates in propionic acid using VO(acac)(2) and Eu(OTf)(3) with O-2 Reviewed

    Hirokazu Kobayashi, Ichiro Yamanaka

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   294 ( 1-2 )   43 - 50   2008.10

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    DOI: 10.1016/j.molcata.2008.07.019

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  • Three-dimensional analysis of carbon nanofibers by cross-sectional TEM observations Reviewed

    Hitoshi Ogihara, Sakae Takenaka, Ichiro Yamanaka, Eishi Tanabe, Akira Genseki, Jun Koki, Kiyoshi Otsuka

    CHEMISTRY LETTERS   37 ( 8 )   868 - 869   2008.8

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    DOI: 10.1246/cl.2008.868

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  • Mechanism of suppression of carbon deposition on the Pd-Ni/Ce(Sm)O-2-La(Sr)CrO3 anode in dry CH4 fuel Reviewed

    Yuta Nabae, Ichiro Yamanaka, Masaharu Hatano, Kiyoshi Otsuka

    JOURNAL OF PHYSICAL CHEMISTRY C   112 ( 27 )   10308 - 10315   2008.7

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    DOI: 10.1021/jp801496v

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  • Direct synthesis of H2O2 by a H2/O 2 fuel cell Reviewed

    Ichiro Yamanaka

    Catalysis Surveys from Asia   12 ( 2 )   78 - 87   2008.6

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    DOI: 10.1007/s10563-008-9041-9

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  • Direct synthesis of H2O2 acid solutions on carbon cathode prepared from activated carbon and vapor-growing-carbon-fiber by a H-2/O-2 fuel cell Reviewed

    Ichiro Yamanaka, Toshikazu Hashimoto, Ryo Ichihashi, Kiyoshi Otsuka

    ELECTROCHIMICA ACTA   53 ( 14 )   4824 - 4832   2008.5

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    DOI: 10.1016/j.electacta.2008.02.009

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  • Neutral H2O2 synthesis by electrolysis of water and O2 Reviewed

    Ichiro Yamanaka, Toru Murayama

    Angewandte Chemie - International Edition   47 ( 10 )   1900 - 1902   2008.2

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    DOI: 10.1002/anie.200704431

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  • Catalytic Synthesis of Neutral H2O2 Solutions from O-2 and H-2 by a Fuel Cell Reaction Reviewed

    Ichiro Yamanaka, Satoshi Tazawa, Toru Murayama, Ryo Ichihashi, Noriko Hanaizumi

    CHEMSUSCHEM   1 ( 12 )   988 - 992   2008

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    DOI: 10.1002/cssc.200800176

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  • Simple vanadium(V) catalyst for oxidation of alkane with O-2 under mild conditions Reviewed

    Hirokazu Kobayashi, Ichiro Yamanaka

    CHEMISTRY LETTERS   36 ( 1 )   114 - 115   2007.1

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    DOI: 10.1246/cl.2007.114

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  • Effect of Steam on Direct Oxidation of Methane over Pd-Ni Electrocatalyst Supported on Lanthanum Chromite Anode Reviewed

    Ichiro Yamanaka, Tateo Ito, Yuta Nabae, Masaharu Hatano

    SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2   7 ( 1 )   1745 - +   2007

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    DOI: 10.1149/1.2729286

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  • Electrocatalysis of heat-treated Mn-porphyrin/carbon cathode for synthesis of H2O2 acid solutions by H-2/O-2 fuel cell method Reviewed

    Ichiro Yamanaka, Takeshi Onizawa, Hirobumi Suzuki, Noriko Hanaizumi, Kiyoshi Otsuka

    CHEMISTRY LETTERS   35 ( 12 )   1330 - 1331   2006.12

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    DOI: 10.1246/cl.2006.1330

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  • Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts Reviewed

    H Ogihara, S Takenaka, Yamanaka, I, E Tanabe, A Genseki, K Otsuka

    JOURNAL OF CATALYSIS   238 ( 2 )   353 - 360   2006.3

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    DOI: 10.1016/j.jcat.2005.12.024

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  • Production of COx-free hydrogen from biomass and NaOH mixture: Effect of catalysts Reviewed

    M Ishida, S Takenaka, Yamanaka, I, K Otsuka

    ENERGY & FUELS   20 ( 2 )   748 - 753   2006.3

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    DOI: 10.1021/ef050282u

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  • Active control of catalysis and product selectivity by a fuel cell system Reviewed

    Ichiro Yamanaka

    Research on Chemical Intermediates   32 ( 3-4 )   373 - 385   2006

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    DOI: 10.1163/156856706777346534

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  • The Active Hydrogen Electrochemically or Thermally Generated on Pd/H3PO4/Pd catalysts

    Kiyoshi Otsuka AND, Ichiro Yamanaka

    2006

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  • Partial Oxidation of Methanol Using a Fuel Cell System at Room Temperature

    Ichiro Yamanaka AND, Kiyoshi Otsuka

    2006

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  • Electrochemical cells as reactors for selective oxygenation of hydrocarbons at low temperature

    Kiyoshi Otsuka AND, Ichiro Yamanaka

    2006

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  • Oxygenation of Alkanes and Aromatics by Reductively Activated Oxygen during H2-O2 Cell Reaction

    Kiyoshi Otsuka AND, Ichiro Yamanaka

    2006

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  • Synthesis of SiO2 Nanotubes and Their Application as Nanoscale Reactors Reviewed

    Hitoshi Ogihara, Sakae Takenaka, Ichiro Yamanaka, Kiyoshi Otsuka

    Chemistry of Materials   185 ( 4 )   996 - 997   2006

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    DOI: 10.1021/cm051727v

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  • Direct Oxidation of Dry Methane by Pd-Ni Synergy Catalyst Supported on Lanthanum Chromite Based Anode Reviewed

    Ichiro Yamanaka, Yuta Nabae

    Advances in Science and Technology   45   2067 - 2076   2006

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  • High efficient electrochemical carbonylation of methanol to dimethyl carbonate by Br-2/Br- mediator system over Pd/C anode Reviewed

    A Funakawa, Yamanaka, I, K Otsuka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   153 ( 4 )   D68 - D73   2006

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    DOI: 10.1149/1.2168407

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  • Catalytic behavior of Pd-Ni/composite anode for direct oxidation of methane in SOFCs Reviewed

    Y Nabae, Yamanaka, I, M Hatano, K Otsuka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   153 ( 1 )   A140 - A145   2006

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    DOI: 10.1149/1.2136079

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  • Efficient oxidation of alkane with O-2 and H-2 by Eu-Ti-Pt catalytic system Reviewed

    Yamanaka, I, T Gomi, T Nabeta, K Otsuka

    CHEMISTRY LETTERS   34 ( 11 )   1486 - 1487   2005.11

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    DOI: 10.1246/cl.2005.1486

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  • Fabrication of single-crystalline MoO 3 nanobelts by using carbons Reviewed

    Hitoshi Ogihara, Sakae Takenaka, Ichiro Yamanaka, Eishi Tanabe, Akira Genseki, Kiyoshi Otsuka

    Chemistry Letters   34 ( 10 )   1428 - 1429   2005.10

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    DOI: 10.1246/cl.2005.1428

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  • Direct oxidation of methane by Pd-Ni bimetallic catalyst over lanthanum chromite based anode for SOFC Reviewed

    Y Nabae, Yamanaka, I, S Takenaka, M Hatano, K Otsuka

    CHEMISTRY LETTERS   34 ( 6 )   774 - 775   2005.6

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    DOI: 10.1246/cl.2005.774

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  • Active control of methanol carbonylation selectivity over Au/carbon anode by electrochemical potential Reviewed

    Akiyasu Funakawa, Ichiro Yamanaka, Kiyoshi Otsuka

    Journal of Physical Chemistry B   109 ( 18 )   9140 - 9147   2005.5

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    DOI: 10.1021/jp0448752

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  • Electro-catalysis of the Cu/carbon cathode for the reduction of O-2 during fuel-cell reactions Reviewed

    Y Nabae, Yamanaka, I, K Otsuka

    APPLIED CATALYSIS A-GENERAL   280 ( 2 )   149 - 155   2005.3

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    DOI: 10.1016/j.apcata.2004.10.050

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  • One-step production of CO- and CO2-free hydrogenfrom biomass Reviewed

    M Ishida, K Otsuka, S Takenaka, Yamanaka, I

    JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY   80 ( 3 )   281 - 284   2005.3

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    DOI: 10.1002/jctb.1188

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  • Synergy of Pd and Ni Catalysts for Direct Oxidation of Methane over Lanthanum Chromate Based Anode Reviewed

    Yuta Nabae, Ichiro, Yamanaka, Sakae, Takenaka Masaharu Hatano, Kiyoshi Otsuka

    Solid Oxide Fuel Cells   9   1341 - 1351   2005

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  • Electro-Catalytic Synthesis of DMC over the Pd/VGCF membrane anode by Gas-Liquid-Solid Phase-Boundary Electrolysis Reviewed

    Ichiro Yamanaka, Akiyasu Funakawa, Kiyoshi Otsuka

    Journal of Catalysis   221 ( 1 )   110 - 118   2004

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    DOI: 10.1016/S0021-9517(03)00309-9

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  • Reduction of NO with the carbon nanofibers formed by methane decomposition Reviewed

    H. Ogihara, S. Takenaka, I. Yamanaka, K. Otsuka

    Carbon   42 ( 8-9 )   1609 - 1617   2004

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    DOI: 10.1016/j.carbon.2004.03.001

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  • Electrocatalytic Carbonylation of Methanol by Gold Anode Reviewed

    Ichiro Yamanaka, Akiyasu Funakawa, Sakae Takenaka, Kiyoshi Otsuka

    Analyical, Mechnistic, and Synthetic Organic Electrochemistry   10   62 - 64   2004

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  • Selective Control of Carbonylation of Methanol to Dimethyl Oxalate and Dimethyl Carbonate over Gold Anode by Electrochemical Potential Reviewed

    Akiyasu Funakawa, Ichiro, Yamanaka, Sakae Takenaka, Kiyoshi Otsuka

    Journal of American Chemical Society   126 ( 17 )   5346 - 5347   2004

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    DOI: 10.1021/ja0395700

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  • Direct and continuous production of hydrogen peroxide with 93% selectivity using a fuel-cell system Reviewed

    Ichiro Yamanaka, Takeshi Onizawa, Sakae Takenaka, Kiyoshi Otsuka

    Angewandte Chemie - International Edition   42 ( 31 )   3653 - 3655   2003.8

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    DOI: 10.1002/anie.200351343

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  • The partial oxidation of methanol using a fuel cell reactor Reviewed

    K Otsuka, T Ina, Yamanaka, I

    APPLIED CATALYSIS A-GENERAL   247 ( 2 )   219 - 229   2003.7

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    DOI: 10.1016/S0926-860X(03)00130-3

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  • Electrochemical studies of the alkene-NOx fuel cell for organic synthesis Reviewed

    Yamanaka, I, Y Nabae, K Otsuka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   150 ( 7 )   D129 - D133   2003.7

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    DOI: 10.1149/1.1579036

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  • Complete Hydrodechlorination of Chloro-Aromatics Catalyzed by Pd/TiO2 with H2 Reviewed

    Ichiro Yamanaka, Koji Nishikawa, Sakae Takenaka, Kiyoshi Otsuka

    Studies Surface Science and Catalysis   145   383 - 386   2003

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  • Reductive activation of O-2 and monooxygenation of hydrocarbons by Eu catalyst Reviewed

    Yamanaka, I

    CATALYSIS SURVEYS FROM JAPAN   6 ( 1-2 )   63 - 72   2002.10

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  • Direct synthesis of hydrogen peroxide (> 1 wt%) over the cathode prepared from active carbon and vapor-grown-carbon-fiber by a new H2-O2 fuel cell system Reviewed

    Ichiro Yamanaka, Toshihide Hashimoto, Kiyoshi Otsuka

    Chemistry Letters   ( 8 )   852 - 853   2002.8

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    DOI: 10.1246/cl.2002.852

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  • Electro-organic synthesis of N-hexyl carbamate by carbonylation of methanol and hexylamine with CO over Au supported on carbon anode Reviewed

    RG de Leon, Yamanaka, I, K Otsuka

    CHEMISTRY LETTERS   ( 7 )   764 - 765   2002.7

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    DOI: 10.1246/cl.2002.764

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  • Selective carbonylation of methanol to dimethyl carbonate by gas-liquid-solid-phase boundary electrolysis Reviewed

    Ichiro Yamanaka, Akiyasu Funakawa, Kiyoshi Otsuka

    Chemistry Letters   ( 4 )   448 - 449   2002.4

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    DOI: 10.1246/cl.2002.448

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  • Partial oxidation of light alkanes by reductive activated oxygen over the (Pd-black + VO(acac)2/VGCF) cathode of H2-O2 cell system at 298 K Reviewed

    Ichiro Yamanaka, Shinichi Hasegawa, Kiyoshi Otsuka

    Applied Catalysis A: General   226 ( 1-2 )   305 - 315   2002.3

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    DOI: 10.1016/S0926-860X(01)00916-4

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  • Oxidative coupling of methane over Li+-added Y2O3 catalyst prepared from Y(OH)(3) Reviewed

    S Takenaka, T Kaburagi, Yamanaka, I, K Otsuka

    CATALYSIS TODAY   71 ( 1-2 )   31 - 36   2001.11

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  • Partial oxidation of alkenes by a membrane catalyst utilizing fuel cell reactions Reviewed

    Yamanaka, I, K Komabayashi, A Nishi, K Otsuka

    CATALYSIS TODAY   71 ( 1-2 )   189 - 197   2001.11

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    DOI: 10.1016/S0920-5861(01)00429-1

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  • Rapid and complete hydrodechlorination of 2,4-dichlorophenoxyacetic acid catalyzed by Pd/TiO2 with H-2 in deionized water Reviewed

    Yamanaka, I, K Nishikawa, K Otsuka

    CHEMISTRY LETTERS   2001 ( 4 )   368 - 369   2001.4

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    DOI: 10.1246/cl.2001.368

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  • Design of alkenes-(O2+NO) cell system for the selective partial oxidation of alkenes Reviewed

    I. Yamanaka, A. Nishi, K. Otsuka

    Catalysis Today   66 ( 1 )   115 - 122   2001.3

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    DOI: 10.1016/S0920-5861(00)00611-8

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  • An alkene-NOx cell for the wacker-type oxidation of alkenes Reviewed

    K Otsuka, Yamanaka, I, A Nishi

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   148 ( 2 )   D4 - D8   2001.2

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    DOI: 10.1149/1.1337612

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  • Partial oxidation of alkenes by a membrane catalyst conducting H+ and e- Reviewed

    Ichiro Yamanaka, Kentaro Komabayashi, Kiyoshi Otsuka

    Catalysis Communications   2 ( 5 )   151 - 154   2001

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    DOI: 10.1016/S1566-7367(01)00024-3

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  • Decomposition of methane over supported-Ni catalysts: effects of the supports on the catalytic lifetime Reviewed

    SAKAE TAKENAKA, Hitoshi Ogihara, ICHIRO YAMANAKA, KIYOSHI OTSUKA

    Appl. Catal. A   217   101 - 110   2001

  • Production and strage of hydrogen from methane mediated by metal oxide Reviewed

    Kiyoshi Otsuka Aiko Mito, Sakae Takenaka, Ichiro Yamanaka

    Stududy Surface Science & Catalatlysis   215 - 220   2001

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  • Production of hydrogen from methane without CO2-emission mediated by indium oxide and iron oxide Reviewed

    Kiyoshi Otsuka, Aiko Mito, Sakae Takenaka, Ichiro Yamanaka

    International Journal of Hydrogen Energy   26 ( 3 )   191 - 194   2001

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    DOI: 10.1016/S0360-3199(00)00070-7

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  • Characterization of silica-supported Ni catalysts effective for methane decomposition by Ni K-edge XAFS Reviewed

    SAKAE TAKENAKA, Hitoshi Ogihara, ICHIRO YAMANAKA, KIYOSHI OTSUKA

    J. Synchrotron Rad.   8 ( 2 )   587 - 589   2001

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    DOI: 10.1107/S0909049500015879

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  • Oxygenation of alkanes and aromatics by reductively activated oxygen during H-2-O-2 cell reactions Reviewed

    K Otsuka, Yamanaka, I

    CATALYSIS TODAY   57 ( 1-2 )   71 - 86   2000.3

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    DOI: 10.1016/S0920-5861(99)00310-7

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  • Partial oxidation of light alkanes by reductively activated oxygen in Eu-catalytic system at 40 degrees C Reviewed

    Yamanaka, I, M Soma, K Otsuka

    RESEARCH ON CHEMICAL INTERMEDIATES   26 ( 2 )   129 - 135   2000

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    DOI: 10.1163/156856700X00165

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  • Oxidation of alkanes with H2O on Ir(acac)(3) supported on a carbon fiber-anode Reviewed

    Yamanaka, I, T Furukawa, K Otsuka

    CHEMICAL COMMUNICATIONS   2000 ( 22 )   2209 - 2210   2000

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    DOI: 10.1039/b006107g

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  • Direct Synthesis of Phenol from Benzene and O2 over VMo-Oxide/SiO Reviewed

    Ichiro Yamanaka, Seiji Katagiri, Sakae Takenaka, Kiyoshi Otsuka

    Studies in Surface Science and Catalysis   130   809 - 814   2000

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  • Eu-Ti-Pt-Catalytic System for the Direct Hydroxylation of Benzene by O_2_ and H_2_ under Mild Conditions Reviewed

    Ichiro Yamanaka, Takashi Nabeta, Sakae Takenaka, Kiyoshi Otsuka

    Studies in Surface Science and Catalysis   130   815 - 820   2000

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  • Dechlorination of chloroaromatics by electrocatalytic reduction over palladium-loaded carbon felt at room temperature Reviewed

    Andrey I. Tsyganok, Ichiro Yamanaka, Kiyoshi Otsuka

    Chemosphere   39 ( 11 )   1819 - 1831   1999.11

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    DOI: 10.1016/S0045-6535(99)00075-2

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  • Oxygenates from light alkanes catalyzed by NOx in the gas phase Reviewed

    K Otsuka, R Takahashi, Yamanaka, I

    JOURNAL OF CATALYSIS   185 ( 1 )   182 - 191   1999.7

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    DOI: 10.1006/jcat.1999.2507

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  • Oxidation of methane to methanol with O-2 catalyzed by the europium system under mild conditions Reviewed

    Yamanaka, I, M Soma, K Otsuka

    KINETICS AND CATALYSIS   40 ( 3 )   414 - 417   1999.5

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  • Electrolytic synthesis of propene oxide from propene and water in the gas phase Reviewed

    Yamanaka, I, K Sato, K Otsuka

    ELECTROCHEMICAL AND SOLID STATE LETTERS   2 ( 3 )   131 - 132   1999.3

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  • Pd-loaded carbon felt as the cathode for selective dechlorination of 2,4-dichlorophenoxyacetic acid in aqueous solution Reviewed

    AI Tsyganok, Yamanaka, I, K Otsuka

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   145 ( 11 )   3844 - 3850   1998.11

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    DOI: 10.1149/1.1838883

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  • Partial oxidation of light alkanes by NOx in the gas phase Reviewed

    K. Otsuka, R. Takahashi, K. Amakawa, I. Yamanaka

    Catalysis Today   45 ( 1-4 )   23 - 28   1998.10

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    DOI: 10.1016/S0920-5861(98)00233-8

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  • Selective synthesis of MeCHO by C2H4-(O-2+NO) cell system Reviewed

    Yamanaka, I, A Nishi, K Otsuka

    CHEMICAL COMMUNICATIONS   1998 ( 19 )   2105 - 2106   1998.10

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    DOI: 10.1039/a805092i

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  • Oxidation of benzene to benzoquinone during electrolysis of water over the carbon fiber anode Reviewed

    Yamanaka, I, T Furukawa, K Otsuka

    CHEMISTRY LETTERS   1998 ( 10 )   1059 - 1060   1998.10

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    DOI: 10.1246/cl.1998.1059

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  • Decomposition and Regeneration of Methane by Hydrogen Absorbing Alloys Reviewed

    OTSUKA Kiyoshi, NAKAJIMA Naoto, YAMANAKA Ichiro

    1998 ( 9 )   873 - 874   1998.9

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  • Oxidation of methane and benzene with oxygen catalyzed by reduced vanadium species at 40 degrees C Reviewed

    Yamanaka, I, K Morimoto, M Soma, K Otsuka

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   133 ( 3 )   251 - 254   1998.8

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    DOI: 10.1016/S1381-1169(97)00280-X

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  • One-step synthesis of propylene oxide catalysed by the EuCl3-O-2-Zn-MeCO2H-system Reviewed

    Yamanaka, I, K Nakagaki, K Otsuka

    APPLIED CATALYSIS A-GENERAL   171 ( 2 )   309 - 314   1998.7

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    DOI: 10.1016/S0926-860X(98)00087-8

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  • Direct partial oxidation of methane to synthesis gas by cerium oxide Reviewed

    K Otsuka, Y Wang, E Sunada, Yamanaka, I

    JOURNAL OF CATALYSIS   175 ( 2 )   152 - 160   1998.4

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    DOI: 10.1006/jcat.1998.1985

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  • Reductive activation of oxygen for partial oxidation of light alkanes Reviewed

    K Otsuka, Yamanaka, I, Y Wang

    NATURAL GAS CONVERSION V   119   15 - 24   1998

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  • Electrochemical Cells as Reactors for Selective Oxygenation of Hydrocarbons at Low Temperature Reviewed

    ICHIRO YAMANAKA, Kiyoshi Otsuka

    Catalyisi Today   41   311   1998

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    DOI: 10.1016/S0920-5861(98)00022-4

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  • Hydroformylation of Ethlene via Spontaneous Cell Reactions in the Gas Phase Reviewed

    Kiyoshi Otsuka Ten, Ando Ichiro Yamanaka

    Journal of Catalysis   165 ( 2 )   221 - 230   1997

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    DOI: 10.1006/jcat.1997.1472

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  • The production of synthesis gas by the redox of cerium oxide Reviewed

    K Otsuka, E Sunada, T Ushiyama, Yamanaka, I

    NATURAL GAS CONVERSION IV   107   531 - 536   1997

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  • Reactivity of active oxygen species generated in the EuCl3 catalytic system for monooxygenation of hydrocarbons Reviewed

    Yamanaka, I, K Nakagaki, T Akimoto, K Otsuka

    JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2   1996 ( 11 )   2511 - 2517   1996.11

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  • Reaction mechanism of NO reduction by CH4 over rare earth oxides in oxidizing atmosphere Reviewed

    K Otsuka, QH Zhang, Yamanaka, I, H Tono, M Hatano, H Kinoshita

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   69 ( 11 )   3367 - 3373   1996.11

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    DOI: 10.1246/bcsj.69.3367

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  • A hydrogen nitric oxide cell for the synthesis of hydroxylamine Reviewed

    K Otsuka, H Sawada, Yamanaka, I

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   143 ( 11 )   3491 - 3497   1996.11

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  • Oxidation and epoxidation of hydrocarbons with O-2 catalysed by EuCl3 Reviewed

    Yamanaka, I, T Akimoto, K Nakagaki, K Otsuka

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   110 ( 2 )   119 - 128   1996.8

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    DOI: 10.1016/1381-1169(96)00066-0

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  • Reactivity of active oxygen species generated in the EuCl3 catalytic system for monooxygenation of hydrocarbons

    Ichiro Yamanaka, Katsumi Nakagaki, Takashi Akimoto, Kiyoshi Otsuka

    Journal of the Chemical Society. Perkin Transactions 2   ( 11 )   2511 - 2517   1996

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    DOI: 10.1039/p29960002511

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  • Enhancing effect of Titanium(II) for the oxidation of methane with O-2 by an EuCl3-Zn-CF3CO2H-catalytic system at 40 degrees C Reviewed

    Yamanaka, I, M Soma, K Otsuka

    CHEMISTRY LETTERS   1996 ( 7 )   565 - 566   1996

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    DOI: 10.1246/cl.1996.565

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  • Electrocatalytic synthesis of propylene oxide during water electrolysis Reviewed

    K Otsuka, T Ushiyama, Yamanaka, I, K Ebitani

    JOURNAL OF CATALYSIS   157 ( 2 )   450 - 460   1995.12

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    DOI: 10.1006/jcat.1995.1310

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  • OXIDATION OF METHANE TO METHANOL WITH OXYGEN CATALYZED BY EUROPIUM TRICHLORIDE AT ROOM-TEMPERATURE Reviewed

    YAMANAKA, I, M SOMA, K OTSUKA

    JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS   1995 ( 21 )   2235 - 2236   1995.11

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    DOI: 10.1039/c39950002235

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  • DIRECT SYNTHESIS OF PROPENE OXIDE BY USING AN EUCL3 CATALYTIC-SYSTEM AT ROOM-TEMPERATURE Reviewed

    YAMANAKA, I, K NAKAGAKI, K OTSUKA

    JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS   1995 ( 11 )   1185 - 1186   1995.6

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    DOI: 10.1039/c39950001185

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  • ETHANE OXIDATIVE DEHYDROGENATION OVER BORON OXIDES SUPPORTED ON YTTRIA-STABILIZED ZIRCONIA Reviewed

    K OTSUKA, T ANDO, S SUPRAPTO, Y WANG, K EBITANI, YAMANAKA, I

    CATALYSIS TODAY   24 ( 3 )   315 - 320   1995.6

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    DOI: 10.1016/0920-5861(95)00052-H

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  • ELECTROLYTIC CARBONYLATION OF METHANOL OVER THE CUCL2 ANODE IN THE GAS-PHASE Reviewed

    K OTSUKA, T YAGI, YAMANAKA, I

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   142 ( 1 )   130 - 135   1995.1

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    DOI: 10.1149/1.2043851

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  • CATALYSIS OF SM3+ FOR THE OXIDATION OF ALKANES WITH O-2 IN THE LIQUID-PHASE Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   95 ( 2 )   115 - 120   1995.1

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    DOI: 10.1016/1381-1169(94)00015-8

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  • GAS-PHASE OXIDATION OF BENZENE TO PHENOL AND HYDROQUINONE BY USING AN H2-O2 FUEL-CELL SYSTEM Reviewed

    YAMANAKA, I, T AKIMOTO, K OTSUKA

    ELECTROCHIMICA ACTA   39 ( 17 )   2545 - 2549   1994.12

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    DOI: 10.1016/0013-4686(94)00253-3

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  • SIMULTANEOUS EPOXIDATION OF 1-HEXENE AND HYDROXYLATION OF BENZENE DURING ELECTROLYSIS OF WATER Reviewed

    K OTSUKA, YAMANAKA, I, M HAGIWARA

    CHEMISTRY LETTERS   ( 10 )   1861 - 1864   1994.10

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    DOI: 10.1246/cl.1994.1861

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  • DIMETHYL CARBONATE SYNTHESIS BY ELECTROLYTIC CARBONYLATION OF METHANOL IN THE GAS-PHASE Reviewed

    K OTSUKA, T YAGI, YAMANAKA, I

    ELECTROCHIMICA ACTA   39 ( 14 )   2109 - 2115   1994.10

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    DOI: 10.1016/0013-4686(94)E0175-Y

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  • EPOXIDATION OF ALKENES WITH O-2 CATALYZED BY EUCL3 UNDER AMBIENT CONDITIONS Reviewed

    YAMANAKA, I, K NAKAGAKI, T AKIMOTO, K OTSUKA

    CHEMISTRY LETTERS   ( 9 )   1717 - 1720   1994.9

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    DOI: 10.1246/cl.1994.1717

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  • EUROPIUM-CATALYSIS FOR THE MONOOXYGENATION OF ALKANES IN THE LIQUID-PHASE Reviewed

    YAMANAKA, I, T AKIMOTO, K OTSUKA

    CHEMISTRY LETTERS   ( 8 )   1511 - 1514   1994.8

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    DOI: 10.1246/cl.1994.1511

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  • Synthesis of Dimethyl Garbonate by Electrolytic Carbonylation of Methanol in the Gas Phase Reviewed

    Kiyoshi Otsuka, Toshikazu Yagi, Ichiro Yamanaka

    Chemistry Letters   23 ( 3 )   495 - 498   1994.3

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    DOI: 10.1246/cl.1994.495

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  • INVESTIGATION OF THE NATURE OF THE ACTIVE OXYGEN INTERMEDIATE AT GRAPHITE-SUPPORTED SMCL3, AND FECL3, WORKING AS A CATHODE FOR THE PARTIAL OXIDATION OF ALKANES AND AROMATICS Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   90 ( 3 )   451 - 458   1994.2

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    DOI: 10.1039/ft9949000451

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  • PARTIAL OXIDATION OF METHANE OVER IRON MOLYBDATE CATALYST Reviewed

    K OTSUKA, Y WANG, YAMANAKA, I, A MORIKAWA, MY SINEV

    NATURAL GAS CONVERSION II   81   503 - 508   1994

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  • PARTIAL OXIDATION OF BENZENE OVER THE CARBON WHISKER CATHODE ADDED WITH IRON-OXIDE AND PALLADIUM BLACK DURING O-2-H-2 FUEL-CELL REACTIONS Reviewed

    K OTSUKA, M KUNIEDA, YAMANAKA, I

    NEW DEVELOPMENTS IN SELECTIVE OXIDATION II   82   703 - 711   1994

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  • OXIDATIVE DEHYDROGENATION OF ETHANE OVER B2O3 CATALYSTS SUPPORTED ON YTTRIA STABILIZED ZIRCONIA Reviewed

    K OTSUKA, T ANDO, YAMANAKA, I

    ADVANCED MATERIALS '93, II - A & B   15 ( A & B )   91 - 94   1994

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  • KINETIC-STUDY OF THE PARTIAL OXIDATION OF METHANE OVER FE2(MOO4)3 CATALYST Reviewed

    K OTSUKA, Y WANG, YAMANAKA, I, A MORIKAWA

    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   89 ( 23 )   4225 - 4230   1993.12

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    DOI: 10.1039/ft9938904225

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  • PARTIAL OXIDATION OF METHANE USING THE REDOX OF CERIUM OXIDE Reviewed

    K OTSUKA, T USHIYAMA, YAMANAKA, I

    CHEMISTRY LETTERS   ( 9 )   1517 - 1520   1993.9

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    DOI: 10.1246/cl.1993.1517

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  • CYCLOHEXANE OXIDATION WITH DIOXYGEN CATALYZED BY SAMARIUM(III) Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF MOLECULAR CATALYSIS   83 ( 3 )   L15 - L18   1993.7

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    DOI: 10.1016/0304-5102(93)87038-A

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  • PARTIAL OXIDATION OF CYCLOHEXANE WITH REDUCTIVELY ACTIVATED DIOXYGEN ON SMCL3 SUPPORTED ON GRAPHITE DURING H-2-O2 FUEL-CELL REACTIONS Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS   89 ( 11 )   1791 - 1797   1993.6

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    DOI: 10.1039/ft9938901791

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  • EPOXIDATION OF CYCLOHEXENE WITH THE NASCENT OXYGEN GENERATED BY ELECTROLYSIS OF WATER Reviewed

    K OTSUKA, M YOSHINAKA, YAMANAKA, I

    JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS   ( 7 )   611 - 612   1993.4

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    DOI: 10.1039/c39930000611

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  • PARTIAL OXIDATION OF ALKANES AND AROMATICS WITH ACTIVATED OXYGEN OVER AN SMCL3-EMBEDDED GRAPHITE CATHODE Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF ALLOYS AND COMPOUNDS   193 ( 1-2 )   56 - 58   1993.3

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  • SYNTHESIS OF CRESOLS BY APPLYING H2-O2 FUEL-CELL REACTION Reviewed

    K OTSUKA, K ISHIZUKA, YAMANAKA, I

    ELECTROCHIMICA ACTA   37 ( 13 )   2549 - 2552   1992.10

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    DOI: 10.1016/0013-4686(92)87097-J

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  • PARTIAL OXIDATION OF TOLUENE TO BENZALDEHYDE AND BENZYL ALCOHOL BY APPLYING AN H2-O2 FUEL-CELL SYSTEM Reviewed

    K OTSUKA, K ISHIZUKA, YAMANAKA, I

    CHEMISTRY LETTERS   1992 ( 5 )   773 - 776   1992.5

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    DOI: 10.1246/cl.1992.773

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  • THE SELECTIVE OXIDATION OF TOLUENE TO BENZALDEHYDE APPLYING A FUEL-CELL SYSTEM IN THE GAS-PHASE Reviewed

    K OTSUKA, K ISHIZUKA, YAMANAKA, I, M HATANO

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   138 ( 11 )   3176 - 3182   1991.11

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    DOI: 10.1149/1.2085388

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  • THE PARTIAL OXIDATIONS OF CYCLOHEXANE AND BENZENE ON THE FECL3-EMBEDDED CATHODE DURING THE O-2-H-2 FUEL-CELL REACTIONS Reviewed

    YAMANAKA, I, K OTSUKA

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   138 ( 4 )   1033 - 1038   1991.4

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    DOI: 10.1149/1.2085710

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  • THE PARTIAL OXIDATION OF CYCLOHEXANE BY ACTIVATED OXYGEN DURING THE FUEL-CELL REACTIONS OF O2 AND H2 Reviewed

    K OTSUKA, YAMANAKA, I

    CATALYTIC SCIENCE AND TECHNOLOGY, VOL 1   1   231 - 236   1991

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  • SELECTIVE SYNTHESIS OF ACETALDEHYDE APPLYING A FUEL-CELL SYSTEM IN THE GAS-PHASE Reviewed

    K OTSUKA, Y SHIMIZU, YAMANAKA, I

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   137 ( 7 )   2076 - 2081   1990.7

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    DOI: 10.1149/1.2086887

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  • A FUEL-CELL FOR THE PARTIAL OXIDATION OF CYCLOHEXANE AND AROMATICS AT AMBIENT-TEMPERATURES Reviewed

    K OTSUKA, YAMANAKA, I, K HOSOKAWA

    NATURE   345 ( 6277 )   697 - 698   1990.6

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    DOI: 10.1038/345697a0

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    Other Link: http://www.nature.com/articles/345697a0.pdf

  • THE PARTIAL OXIDATIONS OF BENZENE AND CYCLOHEXANE DURING FUEL-CELL REACTIONS OF O-2 AND H-2 Reviewed

    K OTSUKA, YAMANAKA, I

    CHEMISTRY LETTERS   1990 ( 4 )   509 - 512   1990.4

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    DOI: 10.1246/cl.1990.509

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  • ONE-STEP SYNTHESIS OF HYDROGEN-PEROXIDE THROUGH FUEL-CELL REACTION Reviewed

    K OTSUKA, YAMANAKA, I

    ELECTROCHIMICA ACTA   35 ( 2 )   319 - 322   1990.2

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    DOI: 10.1016/0013-4686(90)87004-L

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  • Oxidative coupling of methane applying a solid oxide fuel cell system Reviewed

    Kiyoshi Otsuka, Katsuo Suga, Ichiro Yamanaka

    Catalysis Today   6 ( 4 )   587 - 592   1990

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    DOI: 10.1016/0920-5861(90)85055-S

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  • THE ELECTROCHEMICALLY PROMOTED FORMATIONS OF FORMALDEHYDE AND DIMETHYL ETHER DURING ELECTROCATALYTIC OXIDATIONS OF METHANOL AND METHYLAL Reviewed

    YAMANAKA, I, K OTSUKA

    ELECTROCHIMICA ACTA   34 ( 2 )   211 - 214   1989.2

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    DOI: 10.1016/0013-4686(89)87087-2

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  • One-step oxidation of benzene to phenol applying a fuel cell system Reviewed

    Kiyoshi Otsuka, Kinya Hosokawa, Ichiro Yamanaka, Yuji Wada, Akira Morikawa

    Electrochimica Acta   34 ( 10 )   1485 - 1488   1989

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    DOI: 10.1016/0013-4686(89)87192-0

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  • Wacker type and ?-allyl type oxidations of propylene controlled by fuel cell system in the gas phase Reviewed

    Kiyoshi Otsuka, Yasuo Shimizu, Ichiro Yamanaka, Takayuki Komatsu

    Catalysis Letters   3 ( 5-6 )   365 - 369   1989

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/bf00771264

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    Other Link: http://link.springer.com/article/10.1007/BF00771264/fulltext.html

  • ELECTROCHEMICAL ENHANCEMENT OF OXIDATIVE COUPLING OF METHANE OVER LiCl-DOPED NiO USING STABILIZED ZIRCONIA ELECTROLYTE Reviewed

    Kyoshi Otsuka, Katsuo Suga, Ichiro Yamanaka

    CATALYSIS LETTERS   1 ( 12 )   423 - 428   1988.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/BF00766201

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    Other Link: http://link.springer.com/article/10.1007/BF00766201/fulltext.html

  • SELECTIVE SYNTHESIS OF ACETALDEHYDE USING A FUEL-CELL SYSTEM IN THE GAS-PHASE Reviewed

    K OTSUKA, Y SHIMIZU, YAMANAKA, I

    JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS   1988 ( 18 )   1272 - 1273   1988.9

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    DOI: 10.1039/c39880001272

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  • PARTIAL OXIDATION OF METHANOL USING A FUEL-CELL SYSTEM AT ROOM-TEMPERATURE Reviewed

    YAMANAKA, I, K OTSUKA

    CHEMISTRY LETTERS   1988 ( 5 )   753 - 756   1988.5

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    DOI: 10.1246/cl.1988.753

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  • ELECTROCHEMICAL CONTROL FOR OXIDATIVE COUPLING OF METHANE OVER LINIO2 USING SOLID ELECTROLYTES Reviewed

    K OTSUKA, K SUGA, YAMANAKA, I

    CHEMISTRY LETTERS   1988 ( 2 )   317 - 318   1988.2

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    DOI: 10.1246/cl.1988.317

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  • Synthesis of methyl formate by electrocatalytic oxidation of methanol in the gas phase using heteropoly and phosphoric acids.

    Otsuka Kiyoshi, Yamanaka Ichiro, Suga Katsuo

    Chemistry Letters   ( 6 )   1087 - 1090   1987

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    A simple method for electrocatalytic conversion of methanol to methyl formate in the gas phase has been demonstrated. The method using heteropoly acids and phosphoric acid in a flow of methanol vapor could be applied successfully for synthesizing methyl formate with high one-pass yield and selectivity.

    DOI: 10.1246/cl.1987.1087

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  • THE ACTIVE HYDROGEN ELECTROCHEMICALLY OR THERMALLY GENERATED ON PD/H3PO4/PD CATALYSTS Reviewed

    K OTSUKA, YAMANAKA, I

    CHEMISTRY LETTERS   1987 ( 10 )   1945 - 1948   1987

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    DOI: 10.1246/cl.1987.1945

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  • ELECTROCATALYTIC SYNTHESIS OF METHYL FORMATE AND METHYLAL FROM METHANOL ON A PLATINUM-BONDED SOLID POLYMER ELECTROLYTE MEMBRANE Reviewed

    K OTSUKA, YAMANAKA, I

    APPLIED CATALYSIS   26 ( 1-2 )   401 - 404   1986.9

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    DOI: 10.1016/S0166-9834(00)82568-3

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Books

  • 固体触媒反応(吸着)

    触媒学会  2009 

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  • 触媒技術の動向と展望2007(高難度選択酸化反応研究のロードマップ)

    触媒学会  2007 

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  • 化学工学の進歩40「進化する反応工学」:燃料電池反応器

    槇書店  2006 

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  • 触媒活用大辞典:温室効果ガスの化学的利用:メタン

    工業調査会  2005 

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  • 電極触媒を利用する有機電解合成

    有機電解合成の新展開/シーエムシー  2004 

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  • 酸化反応

    表面科学の基礎と応用/日本表面科学会創立25周年記念/エヌ・ティー・エス  2004 

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  • 電極触媒科学の新展開(分担)

    北海道大学図書刊行会  2001 

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MISC

  • Direct Synthesis of Concentrated Hydrogen Peroxide Using New Electrocatalyst Reviewed

    YAMANAKA ICHIRO

    54 ( 7 )   428 - 433   2012.12

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    CiNii Books

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  • 燃料電池型反応器を用いるH2の直接酸化によるH2O2合成 Reviewed

    山中一郎

    電気化学および工業物理化学 : denki kagaku   76 ( No. )   69 - 73   2008

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publisher:The Electrochemical Society of Japan  

    DOI: 10.5796/electrochemistry.76.69

    CiNii Books

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00304986154?from=CiNii

  • 燃料電池型電解法による過酸化水素製造法と酸化反応 Reviewed

    山中一郎

    ファインケミカル   35 ( 3-4 )   41 - 48   2006

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  • 温室効果ガスの化学的利用:メタン Reviewed

    山中一郎

    触媒活用大辞典(工業調査会)   1007 - 1010   2005

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  • 三相界面電解法による電極触媒反応-CyO, DMC, H2O2直接合成- Reviewed

    山中一郎

    触媒   46   313 - 319   2004

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  • ベンゼン直接酸化によるフェノール合成を目指して Reviewed

    山中一郎

    触媒   46   25 - 30   2004

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  • 電気化学ポテンシャルによる触媒作用の制御 Reviewed

    山中一郎

    化学と教育   52 ( 9 )   620 - 623   2004

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    これまでの触媒反応は,反応中に反応温度,圧力など反応条件を変化させることで,主生成物と副生成物の選択性を狭い範囲で調整することは可能であった。しかし,これまでは同じ出発物質から2つの有用な生成物を,触媒を取り換えることな<一連の反応の中で作り分けることは不可能であると考えられてきた。本報では,触媒反応と電気化学反応を組み合わせることにより,電気化学ポテンシャルを利用して外部から生成物選択性を任意に制御可能な反応系を紹介した。

    DOI: 10.20665/kakyoshi.52.9_620

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  • 隔膜電解セルを用いた気相電解合成 Reviewed

    大塚潔, 山中一郎

    Electrochemistry   70 ( 1 )   42 - 46   2002

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  • 燃料電池反応を利用した酸化酵素類似反応 Reviewed

    山中一郎

    化学と教育   49 ( 7 )   434 - 437   2001

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    水素・酸素燃料電池反応を利用して陰極上で酸素分子を還元的に活性化し, 活性酸素を発生させることにより, 化学的に安定で反応性に乏しい炭化水素を室温で選択的に部分酸化できる反応システムについて解説した。サマリウム(III)固定化グラファイト陰極上でのシクロヘキサン部分酸化によるシクロヘキサノール, シクロヘキサノン生成反応, および硫酸銅固定化カーボンウィスカー陰極上でのベンゼン水酸化によるフェノール生成反応の詳細と反応メカニズムについて解説した。

    DOI: 10.20665/kakyoshi.49.7_434

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  • 燃料電池 Reviewed

    山中一郎

    化学と教育   49 ( 2 )   100 - 103   2001

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  • ベンゼンの直接水酸化反応へのチャレンジ . Reviewed

    山中一郎

    ペテロテック   24 ( 8 )   636 - 640   2001

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  • プロントと電子の流れが生み出す新規触媒反応システム Reviewed

    山中一郎, 大塚

    化学工業   1 ( 1 )   23 - 26   2000

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  • 窒素酸化物を用いた酸化反応 Reviewed

    大塚潔, 山中一郎

    触媒   41 ( 8 )   606 - 611   1999

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  • Monooxygenation of hydrocarbons catalysed by Eu(II)-and V(II)-catalyic systems Reviewed

    YAMANAKA Ichiro

    39 ( 6 )   542 - 543   1997.9

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  • Fuel Cells for Cogeneration of Chemicals and Electricity Reviewed

    OTSUKA Kiyoshi, YAMANAKA Ichiro

    50 ( 9 )   1327 - 1328   1997

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  • ユウロピウム触媒によるメタンの常温部分酸化 Reviewed

    山中一郎

    触媒   38   328   1996

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  • 電池を応用した合成反応

    大塚潔, 山中一郎

    表面   32   152   1994

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  • プロトン伝導触媒による反応

    大塚潔, 山中一郎

    表面   27 ( 6 )   473 - 480   1989

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Presentations

  • 高温反応条件下でのXAFSー反応解析の可能性

    KASHABOINA Upendar, 鮑徳玲, 城戸大貴, 三輪(有賀)寛子, 高草木達, 脇坂祐輝, 西川祐太, 井波雄太, 栗山史也, ARNOLDUSLAMBERTUS Dipu, 荻原仁志, 井口翔之, 山中一郎, 和田敬広, 朝倉清高

    触媒討論会討論会A予稿集(CD-ROM)  2020 

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  • In脱水素メタンカップリング触媒の高温オペランドXAFS観察

    KASHABOINA Upendar, 鮑徳玲, 城戸大貴, 三輪(有賀)寛子, 高草木達, 西川祐太, 井波雄太, 栗山史也, DIPU Arnoldus Lambertus, 荻原仁志, 井口翔之, 山中一郎, 和田敬広, 朝倉清高

    触媒 = Catalysts & Catalysis  2020 

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  • SPE型CO2電解に活性を示すCo-N-C触媒の構造解析と反応機構の推定

    仙波雄毅, 荻島裕司, 井波雄太, 井口翔之, 荻原仁志, 山中一郎

    触媒 = Catalysts & Catalysis  2020 

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  • メタン脱水素多量化反応におけるインジウム金属液体の触媒作用

    山中一郎, 荻原仁志, 西川祐太

    触媒 = Catalysts & Catalysis  2017 

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  • トルエン電解水素化反応におけるRu-Ir/KBカソードのRu-Ir協奏効果

    井波雄太, 荻原仁志, 山中一郎

    触媒 = Catalysts & Catalysis  2017 

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  • Co-N-C電極触媒上でのCO2選択還元によるCO生成反応

    荻原仁志, 前鶴知美, 荻島裕司, 山中一郎]

    触媒 = Catalysts & Catalysis  2016 

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  • Au NPs/C アノード-Pd(NHC)触媒による炭酸ジフェニル合成

    兼賀量一, 荻原仁志, 山中一郎

    触媒 = Catalysts & Catalysis  2015 

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  • Direct Synthesis of Diphenyl Carbonate by Pd Electrocatalyst under Ambient Conditions

    MURAYAMA Toru, HAYASHI Tomohiko, ARAI Yuji, YAMANAKA Ichiro

    2010.9 

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  • Catalytic synthesis of neutral H_2O_2 solution at a CoN_2C_x/carbon cathode

    YAMANAKA Ichiro, TAZAWA Satoshi, MURAYAMA Toru, TAKENAKA Sakae

    觸媒 = Catalyst  2009.9  触媒学会

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  • Direct neutral hydrogen peroxide synthesis at a heat-treated Co-TPP/VGCF cathode using PEMFC

    YAMANAKA Ichiro, TAZAWA Satoshi, MURAYAMA Toru, ICHIHASHI Ryo, HANAIZUMI Noriko

    2009.3 

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  • Hydroxylation of Benzene by Pt/TiO_2/H-ZSM-5 Catalyst

    YAMANAKA Ichiro, MATSUDA Hiromitu, TOIDA Masashi

    2007.3 

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  • 中性H2O2水の電解合成

    村山 徹, 山中 一郎

    化学工学会 研究発表講演要旨集  2007  公益社団法人 化学工学会

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  • Selective oxidation of alkanes with O_2 and H_2 by Pt/TiO_x/SiO_2 catalyst in HCl/AcOH

    YAMANAKA Ichiro, SUZUKI Yuta, TOIDA Masashi, OTSUKA Kiyoshi

    2006.9 

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  • セルロース, NaOH, 水蒸気からのCOxフリー水素の一段合成

    石田 稔, 竹中 壮, 大塚 潔, 山中 一郎

    触媒 = Catalysts & Catalysis  2006.3  触媒学会

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  • Direct synthesis of H_2O_2 over the Mn based cathode by the fuel cell method

    YAMANAKA Ichiro, ONIZAWA Takeshi, TAKENAKA Sakae, OTSUKA Kiyoshi

    2004.9 

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  • Production of pure hydrogen through the reduction of modified iron oxides with methane and the subsequent oxidation of the formed metal with water vapor

    TAKENAKA Sakae, VAN THO Dinh Son, HANAIZUMI Noriko, YAMANAKA Ichiro, OTSUKA Kiyoshi

    2004.3 

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  • Electro-carbonylation of methanol over the Au/C electrode

    FUNAKAWA Akiyasu, TAKENAKA Sakae, YAMANAKA Ichiro, OTSUKA Kiyoshi

    2003.9 

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  • Partial Oxidation of Alkanes with O_2 and H_2 by Eu-Ti-Pt-Solid Catalyst

    YAMANAKA Ichiro, GOMI Toshikazu, SUZUKI Yuta, TAKENAKA Sakae, OTSUKA Kiyoshi

    2003.5 

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  • Development of catalysts effective for hydrogen formation through the methane decomposition : Improvement in catalytic activity and life of supported Ni catalysts by addition of Pd

    TAKENAKA Sakae, SHIGETA Yukio, YAMANAKA Ichiro, OTSUKA Kiyoshi

    2003.3 

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  • Pd/TiO_2触媒上での水素による芳香族塩素化合物の完全脱塩素化

    山中 一郎, 西川 浩司, 橋口 奈央子, 竹中 壮, 大塚 潔

    触媒  2002.9  触媒学会

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  • カーボンナノファイバー合成用カーボン担持Ni触媒の開発

    大塚 潔, 荻原 仁志, 竹中 壮, 山中 一郎

    觸媒 = Catalyst  2002.3  触媒学会

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  • 燃料電池反応を利用した選択的H_2O_2合成と酸化反応への応用

    山中 一郎, 橋本 俊一, 竹中 壮, 大塚 潔

    触媒  2001.9  触媒学会

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  • 担持ニッケル触媒上でのメタン直接分解による水素合成:ニッケル種の状態と構造変化

    竹中 壮, 荻原 仁志, 小林 正治, 山中 一郎, 大塚 潔

    触媒  2001.3  触媒学会

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  • Ir (acac)_3/CFアノードによる炭化水素の選択部分酸化反応

    山中 一郎, 古川 泰志, 竹中 壮, 大塚 潔

    触媒  2000.9  触媒学会

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  • メタン直接分解による純水素の生成と新規貯蔵法

    竹中 壮, 三津 愛子, 山中 一郎, 大塚 潔

    触媒  2000.9  触媒学会

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  • Direct Synthesis of Phenol from Benzene with O_2 over VMo - Oxide/SiO_2 Catalyst

    YAMANAKA Ichiro, KATAGIRI Masayuki, TAKENAKA Sakae, OTSUKA Kiyoshi

    1999.9 

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  • Selective Partial Oxidation of Ethylene and Propylene by Alkene-(O_2+NO)Cell System

    YAMANAKA I., NISHI A., OTSUKA K.

    1998.9 

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  • Cathodic oxidation of alkanes by using Eu-Ti-catalytic system

    OTSUKA Kiyoshi, NAKAGAKI Katsumi, SOMA Masanori, YAMANAKA Ichiro

    1997.5 

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  • Monooxygenation of CH_4 to CH_3 OH with O_2 catalysed by EuCl_3 at room temperature : Enhancing effect of Divalent Titanium

    YAMANAKA Ichiro, SOMA Masanori, OTSUKA Kiyoshi

    1996.5 

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    Language:Japanese  

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  • Epoxidation of Propylene with the Nascent Oxygen Generated by H_2O Electrolysis.

    OTSUKA K., YAMANAKA I., USHIYAMA T.

    1995.9 

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  • Monooxygenation of CH_4 to CH_3OH with O_2 by using EuCl_3-catalytic system at room temperature

    YAMANAKA I., SOMA M., OTSUKA K.

    1995.5 

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  • Epoxidation of Alkenes with O_2 Catalyzed by EuCl_3

    YAMANAKA I., NAKAGAKI K., OTSUKA K.

    1995.5 

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    Language:Japanese  

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  • ケミカルズ/電力コジェネレ-ション法によるフェノ-ルの1段合成 (〔触媒学会〕第72回触媒討論会講演予稿)

    大塚 潔, 山中 一郎, 国枝 光弘

    触媒  1993.9  触媒学会

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    Language:Japanese  

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  • 気相有機電解合成法による炭酸ジメチルの合成 (〔触媒学会〕第71回触媒討論会講演予稿)

    大塚 潔, 八木 俊一, 山中 一郎

    触媒  1993.3  触媒学会

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  • 隔膜反応法によるFe2O3カソ-ド上でのNOの還元 (〔触媒学会〕第70回触媒討論会予稿)

    大塚 潔, 沢田 英典, 山中 一郎

    触媒  1992.9  触媒学会

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    Language:Japanese  

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  • サマリウム/グラファイト電極上で活性化した酵素による脂肪族および芳香族炭化水素の部分酸化反応 (第67回触媒討論会講演(予稿))

    大塚 潔, 山中 一郎

    触媒  1991.3  触媒学会

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    Language:Japanese  

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  • 電気で活性化した水素と2-プロパノ-ルおよびジメトキシメタンの反応 (第60回触媒討論会特集号〔予稿〕)

    山中 一郎, 大塚 潔

    触媒  1987.9  触媒学会

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  • Mn-ポルフィリン誘導体/炭素カソード上での高濃度H2O2合成

    第96回触媒討論会  2005 

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  • 金属ポルフィリン誘導体/カーボン触媒を用いたO2によるアルコールの部分酸化反応

    第96回触媒討論会  2005 

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  • アルケン/O2固体高分子燃料電池におけるアノード触媒の開発

    第96回触媒討論会  2005 

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  • Direct Synthesis of H2O2 and Oxidations by a H2/O2-Fuel Cell System

    207th Electrochemical Society  2005 

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  • H2O2 synthesis and oxidations by H2/O2-fuel cell reactor

    2nd International Conference of Green & Sustainable Chemistry  2005 

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  • SOFCにおけるPd・Ni/多孔質コンポジットアノード上での乾燥メタンの直接酸化

    第96回触媒討論会B  2005 

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  • 非極性溶媒中でのクロロベンゼンの水素化による脱塩素化反応

    第96回触媒討論会A  2005 

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  • Direct Synthesis of H2O2 and Oxidations by a H2/O2-Fuel Cell System

    207th Electrochemical Society  2005 

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  • H2O2 synthesis and oxidations by H2/O2-fuel cell reactor

    2nd International Conference of Green & Sustainable Chemistry  2005 

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  • Pt/TiO2/SiO2触媒によるHCl/AcOH溶媒中でのアルカンの選択酸化反応

    第98回触媒討論会B  2006 

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  • H2/O2-燃料電池における新規Co/Cカソードの開発

    第98回触媒討論会A  2006 

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  • V触媒によるO2を酸化剤に用いたアルカンの部分酸化反応

    第98回触媒討論会A  2006 

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  • Pt/TiO2/H-ZSM-5触媒によるベンゼンの水酸化

    第39回酸化反応討論会  2006 

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  • 新規Co触媒を用いた燃料電池反応によるH2O2合成

    第98回触媒討論会A  2006 

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  • 中性過酸化水素水の電解合成

    第98回触媒討論会A  2006 

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  • Pd/Cアノード上でのメタノール及びエチレンの電解カルボニル化反応

    2006年電気化学春季大会  2006 

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  • PtOx/TiOx/H-ZSM-5触媒によるフェノールの直接合成

    第98回触媒討論会A  2006 

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  • Direct oxidation of dry methane by Pd-Ni synergy catalyst supported on lanthanum chromite based anode

    11th International Ceramics Congress  2006 

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  • セルロース,NaOH,水蒸気からのCOxフリー水素の一段合成

    第97回触媒討論会B  2006 

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  • Direct oxidation of dry methane by Pd-Ni synergy catalyst supported on lanthanum chromite based anode

    11th International Ceramics Congress  2006 

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  • CoOx/SiO2触媒によるアダマンタンの酸素酸化反応

    第100回触媒討論会A(北大)  2007 

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  • 燃料電池反応法を用いた中性H2O2水の合成

    第100回触媒討論会A(北大)  2007 

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  • Pt/TiO2/SiO2触媒によるアルケン酸化

    第100回触媒討論会A(北大)  2007 

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  • 水と空気の電気分解による中性過酸化水素水の一段合成

    第100回触媒討論会B(北大)  2007 

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  • Direct Synthesis of Phenol by PtOx/TiOx/H-ZSM-5

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • 熱処理活性化Fe-TPP/Carbon触媒によるアルコールの選択酸化

    第100回触媒討論会A(北大)  2007 

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  • Co-TPP/Carbon触媒によるアルコールの酸素酸化反応

    第100回触媒討論会A(北大)  2007 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Efficient Oxidation of Alkane with O2 under Mild Conditions

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Hydrogen and Organic Acids from Biomass

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Hydrogen Peroxide Synthesis over Co Electrocatalyst by H2/O2 Fuel Cell Method

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • 燃料電池反応器による合成反応の開拓

    触媒学会燃料電池関連触媒研究会  2005 

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  • 固体高分子電解質膜を用いた中性過酸化水素水の電解合成

    第96回触媒討論会  2005 

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  • 臭素メディエータを用いたメタノールの電解カルボニル化反応

    2005年電気化学秋季大会  2005 

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  • 酸素・水素を用いたPt/TiOx/SiO2-HCl系によるアルカンの選択酸化

    第38回酸化反応討論会  2005 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Redox Property of V Catalyst for the Oxidation of Alkane with O2

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Pt/TiO2/ZSM-5触媒によるフェノールの合成

    第99回触媒討論会B(神戸)  2007 

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  • Oxidation of Alkane with O2 and H2 by Eu-Ti-Pt Catalyst

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Electrochemical Carbonylation of Metahnol to Dimethyl Carbonate by Br-Mediator and Pd/C Anode

    2nd International Synposium on Organic Electron Transfer Chemistry  2007 

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  • Hydrogen Peroxide Synthesis over Co Electrocatalyst by H2/O2 Fuel Cell Method

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Direct Synthesis of Phenol by PtOx/TiOx/H-ZSM-5

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Efficient Oxidation of Alkane with O2 under Mild Conditions

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Hydrogen and Organic Acids from Biomass

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Hydrogen Peroxide Synthesis over Co Electrocatalyst by H2/O2 Fuel Cell Method

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Hydrogen Peroxide Synthesis over Co Electrocatalyst by H2/O2 Fuel Cell Method

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Redox Property of V Catalyst for the Oxidation of Alkane with O2

    2nd International Symposium on Organic Electron Transfer Chemistry  2007 

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  • Oxidation of Alkane with O2 and H2 by Eu-Ti-Pt Catalyst

    China-Japan Symposium on Selective Oxidation Catalysis  2007 

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  • Electrochemical Carbonylation of Metahnol to Dimethyl Carbonate by Br-Mediator and Pd/C Anode

    2nd International Synposium on Organic Electron Transfer Chemistry  2007 

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  • Hydrogen Peroxide Synthesis on Heat-treated Mn-Porphyrin/Carbon Cathode by the Fuel Cell Method

    59th International Society of Electrochemistry  2008 

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  • A new conceptual solid-polymer-electrolyte membrane reactor for neutral hydrogen peroxide synthesis

    The First International Forum on Multidisciplinary Education and Research Center for Energy Science  2008 

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  • 活性化V触媒によるO2を用いたベンゼンの部分酸化反応

    第102回触媒討論会A  2008 

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  • SPE電解法を利用したCO2還元反応

    第102回触媒討論会A  2008 

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  • 膜触媒を用いたO2とH2からのH2O2の直接合成

    第102回触媒討論会A  2008 

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  • 燃料電池反応法を用いた中性H2O2の合成

    電気化学会第75回大会  2008 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    14th International cogress of catalyst  2008 

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  • 膜触媒を用いたO2とH2からのH2O2の直接合成

    第29回触媒学会若手会夏の研修会  2008 

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  • 活性化バナジウム触媒によるO2を用いたベンゼンの部分酸化反応

    第29回触媒学会若手会夏の研修会  2008 

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  • バナジウム触媒による酸素を用いたアルカンの部分酸化反応

    第102回触媒討論会B  2008 

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  • Hydrogen Peroxide Synthesis on Co Electrocatalyst

    ICC-14 Pre-Symposium  2008 

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  • Catalytic Oxidation of Alkane with O2 by VO(acac)2 under Mild Conditions

    14th International congress of catalyst  2008 

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  • Efficient Oxidation of Alkane with O2 and H2 by Eu-Ti-Pt Catalyst

    14th International congress of catalyst  2008 

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  • Neutral H2O2 Synthesis by Electrolysis of Water and Air

    14th International cogress of catalyst  2008 

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  • Hydrogen Peroxide Synthesis on Heat-treated Mn-Porphyrin/Carbon Cathode by the Fuel Cell Method

    59th International Society of Electrochemistry  2008 

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  • A new conceptual solid-polymer-electrolyte membrane reactor for neutral hydrogen peroxide synthesis

    The First International Forum on Multidisciplinary Education and Research Center for Energy Science  2008 

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  • 水とO2からの中性H2O2水の電解合成

    電気化学会第75回大会  2008 

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  • Hydrogen Peroxide Synthesis on Co Electrocatalyst

    ICC-14 Pre-Symposium  2008 

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  • Catalytic Oxidation of Alkane with O2 by VO(acac)2 under Mild Conditions

    14th International congress of catalyst  2008 

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  • Efficient Oxidation of Alkane with O2 and H2 by Eu-Ti-Pt Catalyst

    14th International congress of catalyst  2008 

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  • Brメディエータを用いたDMCの高効率電解合成

    第96回触媒討論会  2005 

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  • バイオ資源-NaOHの反応における燃料電池用COxフリー水素の一段合成

    第96回触媒討論会  2005 

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  • シリカナノチューブ合成とそれを反応器としたカーボンナノチューブ合成

    第96回触媒討論会B  2005 

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Awards

  • 触媒学会学会賞(学術部門)

    2020   触媒学会  

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  • 石油学会奨励賞

    2000  

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    Country:Japan

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  • 触媒学会奨励賞

    1997  

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    Country:Japan

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  • 手島記念研究賞

    1992  

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    Country:Japan

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Research Projects

  • Study of new phosgene-free synthesis of DPC

    Grant number:23656508  2011 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    YAMANAKA Ichirou

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    Grant amount:\3900000 ( Direct Cost: \3000000 、 Indirect Cost:\900000 )

    Diphenyl carbonate (DPC) is the essential material for the polycarbonate manufacture in the current chemical industry. DPC is usually produced using deadly poisonous phosgene but a new and phosgene-free method has been developed in this study. Oxidative carbonylation with oxygen can’t use for the DPC synthesis because of highly hydrolysis of DPC. Electrocarbonylation of phenol to DPC was found using a new Pd electrocatalyst. and the reaction mechanism was revealed.

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  • Selective synthesis of neutral H2O2 solution using membrane catalyst

    Grant number:22360337  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    YAMANAKA Ichirou

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    Grant amount:\19890000 ( Direct Cost: \15300000 、 Indirect Cost:\4590000 )

    An efficient and direct synthesis of hydrogen peroxide (H2O2) form hydrogen and oxygen has been desired. The fuel cell method, which was able to synthesize hydrogen peroxide, was dramatically improved. A new electrocatalyst of cobalt-nitrogen-carbon compound has been found and the highest hydrogen concentration of 21% and current efficiency of 95% were achieved. A new membrane catalyst utilizing electron and proton mixed conduction material was developed. A direct synthesis of neutral hydrogen peroxide was succeeded by the membrane catalyst.

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  • 白金,酸化チタン固定化固体酸触媒による炭化水素の選択酸化

    Grant number:19028019  2007

    日本学術振興会  科学研究費助成事業  特定領域研究

    山中 一郎

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    これまで酸素と水素の混合ガスを酸化剤に用いた反応系において,水素の活性化と酸素の還元的活性化に必要な触媒機能の分担と協奏を基盤概念に置くことにより,穏和な条件での炭化水素の部分酸化が可能な触媒系を開発してきた.最近では,Pt/Ti0_2/Si0_2触媒を用いHC1/MeC0_2HあるいはHC1/Me_2CO溶媒を用いることにより,アルカンの選択酸化反応が進行することを見いだしている.アダマンタン酸化では付加価値の高い2級炭素酸化生成物合計の選択率が60%と高く,他の酸化反応系で報告されている選択率(10%)よりも高い特徴を有している.しかし,腐食性のHC1を用いる必要があり,プロセス的には取り扱いにくい.そこで;本特定領域研究においてHC1の代わりに固体酸を機能させることを試みたところ, Pt/TiO_2/H-ZSM-5触媒がベンゼン水酸化反応に活性であることを見いだした.
    上述したようにHC1の代わりに,シリカアルミナ,βゼオライト,モルデナイト, ZSM-5等の各種固体酸を担体に用いた触媒を用いて,ベンゼン水酸化を実施したところ,フェノールおよびヒドロキノン,カテコールが生成することを見出した.ベンゼン水酸化生成物以外にはフェノールが水素化されたシクロヘキサノール,およびベンゼン水素化物のシクロヘキサンの生成が観測された.中でもPt/TiO_2/H-ZSM-5が最も水酸化活性が高いことが分かった.Pt以外のPd, Rh, Au, Ru等の貴金属を用いたところ,Ptが特異的に高活性であり,Ptは単に水素分子の活性化に関わるだけでなく, Pt, TiO_2,固体酸の界面が協奏的に作用して活性酸素の生成に関与していることが明らかとなった.

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  • Direct Synthesis of hydrogen peroxide solution by the membrane reactor

    Grant number:16360400  2004 - 2006

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    YAMANAKA Ichiro

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    Grant amount:\12200000 ( Direct Cost: \12200000 )

    Hydrogen peroxide is expected a major oxidant for Green Sustainable Chemistry. Price of H_2O_2 is expensive to use for chemical process. Most of all H_2O_2 is manufactured by the anthraquinone process through multi-steps operation with a large amount of energy consumption. Therefore, it has been desired for development of new direct catalytic synthesis method of H_2O_2.
    We have found the effective H_2/O_2 fuel cell method for H_2O_2 synthesis. Reduction of O_2 to H_2O_2 at the three-phase boundary (gaseous O_2, aqueous electrolyte, and solid cathode) is the character of the fuel cell method. O_2 gas is directly supplied to the active site at the three-phase boundary. Therefore, the reduction of O_2 to H_2O_2 is accelerated to compare with the successive reduction of H_2O_2. We have performed the efficient production of H_2O_2 of 7 wt % with a 94% current efficiency by using the [VGCF+XC72+PTFE] cathode and NaOH electrolyte (2 mol L^<-1>). When we chose acid electrolyte (0.5 mol L^<-1> H_2SO_4) and the [AC+VGCF+PTFE] cathode, the maximum concentration of H_2O_2 was 1.1 wt %. Electrocatalysts prepared from Fe- and Co-porphyrin or phthalocyanine on carbon by heat-treatment in inert gas have been expected as none-precious metal electrocatalyst for four-electrons reduction of O_2 to H_2O for PEMFC. Our idea was that un-effective metal-porphyrin derivatives would be candidate for the H_2O_2 formation by our fuel cell method. Mn-porphyrin supported on active carbon, which was activated by heat-treatment in Ar, electrochemically catalyzed reduction of O_2 to H_2O_2 by the H_2/O_2 fuel cell method. The electrocatalytic activities were strongly dependent on the heat-treatment temperatures. The maximum H2O2 concentration of 3.5 wt % with 47% current efficiency was obtained for the catalyst treated at 450℃ and a TON (Mn) for the H_2O_2 formation was over 1000 h^<-1>.

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  • 燃料電池反応法にるH2O2中性水溶液の直接合成

    Grant number:16655063  2004 - 2005

    日本学術振興会  科学研究費助成事業  萌芽研究

    山中 一郎

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    Grant amount:\3400000 ( Direct Cost: \3400000 )

    水素/酸素燃料電池反応を利用した過酸化水素の一段合成法による中性過酸化水素の合成を実現することを目標にしている。本反応法はカソード,アノード,2枚のガス拡散電極を隔膜としても機能させ,この電極間に電解質溶液を満たす特異的な構造を有している。電解質液側と反対の電極面は,酸素ガス(カソード),水素ガス(アノード)に露出しており,高分圧の酸素ガス,水素ガスが高濃度のまま直接反応サイトに供給できることが特徴である。
    平成16年度において電解質に1-2規定の炭酸ナトリウム水溶液,VGCF(気相成長カーボンファイバー)ガス拡散電極(カソード),白金/炭素ガス拡散電極(アノード)を用い,それぞれ1気圧の酸素,水素ガスを導入することにより,電極間を短絡するだけで0.05wt%過酸化水素が確かに合成できることを実証した。
    平成17年度は、平成16年度に得られた成果を元に、炭酸ナトリウム電解質を用いた時に高活性を示すカソードの開発を行いった。中性電解質を用いて効率よく過酸化水素が生成するためには、酸素が還元されるVGCFカソード中の三相界面反応場の局部的な酸性あるいは塩基性が影響を及ぼすのではないかと考え、VGCFを酸性または塩基性の酸化物を添加した電極を作製した。具体的には、塩基性酸化物:MgO, BaO, ZrO_2,Sm_2O_3、酸性酸化物:Al_2O_3,SiO_2,TiO_2,Cab-O-Silを検討した。これらの酸化物の中では、酸性酸化物が過酸化水素生活性を促進する作用があることが分かった。なかでもCab-O-Silが有効であり、過酸化水素濃度はCab-O-SilのVGCFへの添加により、0.05wt%から0.16wt%に増加することを見出した。

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  • 構造体触媒による反応場の創出

    Grant number:13126104  2001 - 2003

    日本学術振興会  科学研究費助成事業  特定領域研究

    五十嵐 哲, 草壁 克己, 増田 隆夫, 亀山 秀雄, 山中 一郎, 上村 芳三, 竹平 勝臣

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    Grant amount:\12300000 ( Direct Cost: \12300000 )

    本班は、充填層型触媒反応器に代わる新しい反応場として、ナノ-マイクロ反応場である触媒とマクロ反応場である反応器が一体化した構造体触媒反応器の開発を目的としている。具体的には、触媒と反応器で構成される反応場をシステムとしてとらえ、反応場、伝熱場、および分離場の集積化を図ることによって、伝熱促進、反応分離、および活性種制御の向上を目指している。この目的を達成するために、(1)反応器内壁に活性金属成分を担持したプレート型触媒により熱伝達機能を付与した反応場を創出するグループ(五十嵐、亀山)、(2)各種の選択透過膜分離膜により分離機能を付与した反応場を創出するグループ(増田、草壁、上村)、(3)電気化学的酸素透過膜を用いて触媒上に生成した活性酸素種を制御することによる炭化水素などの選択酸化反応場を創出するグループ(山中、竹平)、の3つのサブグループを編成し、上述の課題に取り組んだ。その結果として得られた成果は、新しい反応場である構造体触媒反応器の学理のための基盤の構築に寄与したと考えられる。さらに、工業的には、水蒸気改質法による水素製造、メタノールからオレフィンの選択的合成、一酸化炭素の高効率酸化、二酸化炭素の一酸化炭素への転化と炭化水素の脱水素の同時制御、またアルケンやアルカンなどの部分酸化などのために新規な手法を提案したと考えられる。
    さらに、本班の共通概念である構造体触媒についての相互理解を深めるために、平成15年度は「構造体触媒の体系化」に関するミニシンポジウムを開催した。また、平成14年度に行なった本班と他の班の班員による3件の共同研究に引き続き、平成15年度は5件の共同研究を実施し、構造体触媒からのアプローチによる触媒分子反応工学の基盤の構築に努めた。
    以上、初期に掲げた「構造体触媒を用いた反応工程の高度化」なる目標が、本班の研究活動によって十分に達成できたと考えられる。

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  • 隔膜セルを用いた反応分離型触媒による部分酸化活性の制御

    Grant number:13126206  2001 - 2003

    日本学術振興会  科学研究費助成事業  特定領域研究

    山中 一郎

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    Grant amount:\10700000 ( Direct Cost: \10700000 )

    燃料電池は、燃料と酸素を|陽極|電解質膜|陰極|からなる隔膜の両側に導入し、電気化学的に両者を反応させ、これに伴う自由エネルギー変化を電力として取り出すデバイスである。通常の燃料電池の場合には、燃料(反応物)は完全酸化される。
    本研究において,陽極の電極触媒を改良することにより完全酸化活性を抑制し、部分酸化活性を発現させることができた。具体的には,[エチレン、水蒸気|Pd-陽極|リン酸電解質膜|Pt-陰極|酸素]からなる反応システムを用いることにより、両電極間を短絡するだけで燃料電池の原理で電流が流れ、触媒的にエチレンの部分酸化生成物であるアセトアルデヒドが選択率よく生成することを見出した。この反応システムは電解合成ではあるが、外部からは電圧を全く掛けておらず、反応システム全体としては触媒反応である。また、|Pd-陽極|リン酸電解質膜|Pt-陰極|を隔膜として、反応物と酸素が分離したままの状態、つまり酸化反応場と還元反応場を物理的に隔てた状態で触媒反応を実施することができる特長を有している。さらに、本反応システムは燃料電池でもあるので発電も可能である。つまり有用な化学品と電力とのコ・ジェネレーションが可能となった。
    上記反応系の実用化へ近づくため,反応活性の比較的向上を試みた結果,カソード反応にNOxメディエータを組み込むことによりアセトアルデヒド生成活性が10倍に向上することを見出した。本反応系はより付加価値の高いプロピレン酸化にも有効であった。また,本反応系をアルケンよりも遥かに反応性の低いアルカンの部分酸化に応用することを試み,電圧を掛けた状態ではあるが,常温常圧の極めて温和な条件でシクロヘキサンを選択的に部分酸化できることを見出した。さらに本反応系を水素の部分酸化による過酸化水素合成に適用し,効率よく過酸化水素が生成することを見出している。

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  • Selective Partial Oxidation of Hydrocarbons by the Cell Reaction System

    Grant number:09555246  1997 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    OTSUKA Kiyoshi, SHIGA Akinobu, YAMANAKA Ichiro

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    Grant amount:\12600000 ( Direct Cost: \12600000 )

    New oxidation methods for the partial oxidtion od alenes at low temperature (<373K) using gaseous alkene-OィイD22ィエD2 fuel cell systems and for the hydroxykation of alkanes and aromatics applying HィイD22ィエD2-OィイD22ィエD2 fuel cell reactions were studied. Catalytic oxidation systems can be converted into electrochemical cells which control the reaction rate and selectivity by a variable resister or potentiostat in the outer circuit, as shown for the Wacker type and π-allyl type oxidations.
    Direct oxygenation of aromatics to phenols, C6 alkanes and light alkanes to alcohols and aldehydes are realized at the cathode during HィイD22ィエD2-OィイD22ィエD2 fuel cell reactions at room temperature. The topics are the ω-oxidation of n-hexane with (FeClィイD23ィエD2 + α-cyclodextrin) /graphite cathode, the synergism of Pd-black and iron compounds for the formation of phenol on (Pd-black+FeィイD23ィエD2OィイD24ィエD2)/Carbon-Whisker (CW) cathode, cogeneration of phenol and electricity by using CuSOィイD24ィエD2/CW cathode, the synergism of different carbon materials in the cathode for the product selectivity in the oxidation of toluene on (CW + Active Carbon) cathodes, and the oxidation of propane over (Pal-black +VO(acac)ィイD22ィエD2)/Carbon-Fiber cathodes in the gas phase. Reductive activation of oxygen on the cathode is essential for these oxygenations. For most of the electrocatalytic systems used in this work, the oxygenations of alkanes and aromatics can be explained on the basis of Fenton Chemistry assuming HO・ as the active oxygen species, except for the SmClィイD23ィエD2/graphite cathode.

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  • 希土類錯体による酸素分子の活性化とメタンの部分酸化

    Grant number:08220218  1996

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\1600000 ( Direct Cost: \1600000 )

    既に我々は、ユウロピウム触媒系(塩化ユウロピウム・亜鉛粉・酢酸・塩化メチレン溶媒)が、酸素を酸化剤としてシクロヘキサンなどのアルカンの部分酸化とアルケンのエポキシ化反応に活性であることを見出している。本年度では、このユウロピウム触媒系を炭化水素の中で最も反応性に乏しいメタンの部分酸化反応に適用し、常温でメタンからメタノール合成の可能性を検討し、さらに系の改良と反応機構を解明することを目的とした。その結果、溶媒を用いず、酢酸のかわりにトリフルオロ酢酸を用いると、常温下でメタンからメタノールへの酸化反応が進行することを見出した。また、メタノールの生成に、塩化ユウロピウム・亜鉛・トリフルオロ酢酸・酸素・メタンのすべての成分は必須であることが分かった。反応活性を向上させる目的でこのユウロピウム触媒系に種々の添加物を加え、添加物による促進効果を試みた。その結果、チタン化合物(TiO_2又はチタンオキシアセチルアセトナート錯体(TiO-AA)を添加すると、メタノール収率が2倍に向上することを見出した。また、このユウロピウム触媒系は、メタンだけではなく、エタン、プロパンのアルコールへの選択酸化反応も効率よく触媒作用することが明らかになった。これらの場合でもチタン化合物による顕著な促進効果が見られた。UV-vis分光法とサイクリックボルタンメトリー測定の結果から、このチタンの促進効果は、Ti^<4+>とTi^<3+>のレドックスがEu^<3+>からのEu^<2+>の生成を促進し、Eu^<2+>上で酸素の還元的活性化を促進することに起因すると考えられる。さらに、電子供与体の亜鉛粉の代わりに定電位電解法を用いても、ユウロピウム触媒によるアルカンの部分酸化反応が進行することを見出した。また、定電位電解の場合でも、チタンのレドックスがEu^<3+>の還元を促進し、両者が協奏的に作用していることが明らかになった。

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  • Simultaneous Epoxidation of Olefin and Hydroxylation of Aromatics during Water Electrolysis

    Grant number:07455320  1995 - 1996

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    OTSUKA Kiyoshi, YAMANAKA Ichiro

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    Grant amount:\6500000 ( Direct Cost: \6500000 )

    Epoxidation of olefins is extremely important both in the current industrial process and organic synthesis because epoxide is one of the most useful synthetic intermediates. Most of all commercial epoxidation reactions are indirect, multi-step co-oxidations. Moreover, these processes require a labile, explosive and expensive oxidant such as hydrogen peroxide or tert-butyl hydroperoxide. While, phenol that is also one of the most important chemical in industry, is manufactured by the Cumene process, multi process. Therefore, one-step syntheses of epoxide and phenol are most desirable process in industry.
    The purpose in this work is to success simultaneous epoxidation of olefin at anode and hydroxylation of aromatics at cathode during the water electrolysis. First, many anodes were tested for the epoxidation of 1-hexene during the water electrolysis by using the cell, [1-hexene, CH_2Cl_2, anode|H_3PO_4/silica wool|cathode, H_2O/He]. We found that Pt-black anode is the most active for the epoxidation of 1-hexene at room temperature. This Pt-black anode is active for the epoxidation of propylene to propylene oxide at room temperature. During this epoxidation, much H_2 is produced at cathode. We have already reported that the hydroxylation of benzene to phenol during H_2-O_2 fuel cell reactions at cathode. The most active cathode for the formation of phenol is Pd-black+Fe_2O_3/Carbon Whisker. Then, we applied this cathode to the electrolysis cell for epoxidation. We found that simultaneou formation of 1,2-epoxyhexane at anode and formation of phenol at cathode during water electrolysis using the electrolysis cell, [1-hexene, CH_2Cl_2, Pt-black anode|H_3PO_4 aq./silica wool|Pd-balck+Fe_2O_3/CW cathode, benzne, O_2].

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  • プロピレンと酸素からのプロピレンオキサイドの合成

    Grant number:07750861  1995

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    山中 一郎

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    Grant amount:\1000000 ( Direct Cost: \1000000 )

    工業的に重要な中間原料であるプロピレンオキサイドは、塩素を用いたクロルヒドリン法あるいは高価な過酸化アルコールとチタン系触媒を用いたハルコン法が現在稼働している。塩素を用いず、高価な酸化剤を用いない、新規プロピレンオキサイド合成法の開発は大変重要な研究課題である。そこで、プロピレンと安価な酸化剤である酸素分子からプロピレンオキサイド合成が可能な新規触媒系を開発することを目的とした。
    申請者は、新規な触媒系、塩化ユウロピウム-亜鉛-酢酸-触媒系を用いることにより、酸素を酸化剤としてプロピレンのエポキシ化反応が常温で選択的に進行することを見いだした。このユウロピウム触媒系を用いて、プロピレンのエポキシ化反応の最適反応条件(プロピレン圧、酸素圧、反応温度、溶媒効果など)を検討した。その結果、プロピレンオキサイド選択率95%、ターンオーバー数は1時間で17を越え、極めて効率良くプロピレンのエポキシ化反応が進行させることに成功した。さらに、ユウロピウム触媒系に回転リングディスク電極を用いた電気化学測定法を適用することにより、エポキシ化反応が進行している際に、反応に係わるユウロピウム種および酸素種の電気化学的特性を検討した。その結果、添加した3価のユウロピウムは亜鉛により還元され2価となっていることが解った。さらに、このユウロピウム(II)と酸素の1電子還元により生成したスーパーオキサイドが相互作用して活性酸素を発生し、エポキシ化反応を進行させていることが明らかとなった。

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  • 希土類錯体による酸素分子の活性化とアルケンの部分酸化

    Grant number:07230221  1994 - 1996

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2400000 ( Direct Cost: \2400000 )

    既に我々は、塩化ユウロピウム触媒系(塩化ユウロピウム・亜鉛粉・酢酸・塩化メチレン溶媒)が、酸化を酸化剤としてアルカンの部分酸化に活性であることを見出している。このユウロピウム触媒系を種々のアルケンのエポキシ化反応に適用し、希土類錯体触媒の反応特異性を明らかにすることを目的とした。その結果、学術的にも工業的にも重要な、プロピレンのエポキシ化反応が常温で選択的に進行することを見いだした。プロピレンのエポキシ化反応の最適反応条件(プロピレン圧、酸素圧、反応温度、溶媒効果など)を検討した結果、プロピレンオキサイド選択率95%、ターンオーバー数は1時間で17を越え、極めて効率良く反応が進行した。さらに、シス-,トランス-2-ヘキセン、1-ヘキセン、そしてスチルベンのエポキシ化反応の生成物選択性から、ユウロピウム触媒系の活性酸素種は球電子的、かつラジカル的性格が強いことが解った。また、ユウロピウム触媒系に回転リングディスク電極を用いて電気化学的測定法を適用することにより、エポキシ化反応が進行している際に反応に係わるユウロポウム種および酸素種の電気化学的特性を検討した。その結果、添加した3価のユウロピウムは亜鉛により還元され2価となり、このユウロピウム(II)と酸素の1電子還元により生成したスーパーオキサイドが相互作用して活性酸素を発生し、エポキシ化反応を進行させていることが明らかとなった。

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  • 希土類錯体による酸素分子の活性化とアルカンの部分酸化

    Grant number:06241222  1994

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2500000 ( Direct Cost: \2500000 )

    最近、希土類元素の特異的な反応性を利用した有機化合物の還元反応や、オレフィン類の重合反応などが報告され注目されている。温和な条件下での炭化水素の部分酸化反応は、鉄やマンガンなどの遷移金属錯体により触媒されることは良く知られているが、希土類元素を用いた報告例は極めて希である。本研究では希土類イオンを触媒として用い、酸素でアルカン類を室温で部分酸化できる触媒系の開発を試みた。平成6年度は、様々な希土類塩を触媒に用いてシクロヘキサンの部分酸化反応を実施した結果、塩化ユウロピウム、酢酸、塩化メチレン溶媒、酸素、亜鉛粉、そしてシクロヘキサンから成る反応系において、シクロヘキサノン、シクロヘキサノールが主生成物で生成した。副生成物は極わずかな炭酸ガスだけであった。各種希土類塩の中でも、塩化ユウロピウムが特異的に高活性であり、1時間でのターンオーバー数は8を越えた。他の希土類塩の中では塩化ランタンと塩化サマリウムがターンオーバー数1を越え、比較的活性であることが解った。比較のため、遷移金属塩(塩化鉄、塩化銅、塩化パラジウム)を用いて反応を実施したが生成物量は少なく、塩化ユウロピウム触媒の方が遥かに反応活性が高いことが解った。本反応系は、ヘキサンやアダマンタンなどの他のアルカンの選択的部分酸化にも極めて反応活性が高いことが解った。生成物の選択性から、ユウロピウム触媒系で発生している活性酸素種は求電子的な性質であることが解った。また、電気化学的な検討を行った結果、ユウロピウムは2価で反応に関与していることが解った。

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  • 気相有機電解法による酸化的カルボニル化反応

    Grant number:06226220  1994

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2200000 ( Direct Cost: \2200000 )

    炭酸ジメチルは、有機合成試薬として大量重要な化合物である。従来、炭酸ジメチルは猛毒のホスゲンとメタノールから合成されていた。これに換わる炭酸ジメチルの合成法として、メタノールと一酸化炭素から合成する方法が研究され、一部工業化されている。しかし、この方法は高温高圧の反応条件を必要としている。本研究では、新規なメタノールと一酸化炭素からの炭酸ジメチル合成法として、隔膜反応器を用いた気相電解合成法の適用を試みた。既に、平成5年度において塩化パラジウムをグラファイトに担持したアノードが、メタノールの電解カルボニル化反応に活性を示し、確かに炭酸ジメチルが生成することを見出している。6年度は、炭酸ジメチル合成に活性な他のアノード電極触媒の探索を試みた。その結果、塩化銅をグラファイトに担持した電極が塩化パラジウム電極に匹敵する活性を示すことを見出した。この電極について、電解電圧、メタノール圧、一酸化炭素圧、反応温度の影響など、各種速度論的検討を行った。その結果、炭酸ジメチル生成速度は、電解電圧1.2V以上で急激に増加し、メタノール圧に2次、一酸化炭素圧に1次に依存した。又、反応温度は低い方が炭酸ジメチル生成速度が高いことが解った。電解電圧を低減させるために、カソード室に酸素を導入したところ、炭酸ジメチルが生成し始める電圧が約0.6V低下した。この様な反応条件の最適化により、大気圧下、電解電圧0.6V、反応温度70度で炭酸ジメチルが効率よく合成できることが解った。

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  • 気相有機電解法による酸化的カルボニル化反応

    Grant number:05235212  1993 - 1995

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    炭酸ジメチルは、有機合成試薬として大変重要な化合物である。従来、炭酸ジメチルは猛毒のホスゲンとメタノールから合成されていた。これに換わる炭酸ジメチルの合成法として、メタノールと一酸化炭素から合成する方法が研究され、一部工業化されている。しかし、この方法は高温高圧の反応条件を必要としている。本研究では、新規なメタノールと一酸化炭素からの炭酸ジメチル合成法として、隔膜反応器を用いた気相電解合成法の適用を試みた。初年度は、炭酸ジメチル合成に活性なアノード電極触媒の探索を試みた。その結果、塩化パラジウム、塩化銅、そして塩化ロジウムをグラファイトに担持したアノードが、メタノールの電解カルボニル化反応に活性を示し、確かに炭酸ジメチルが生成することが解った。炭酸ジメチル生成速度は塩化パラジウム電極が最も高かった。この電極について、電解電圧、メタノール圧、一酸化炭素圧、反応温度の影響など、各種速度論的検討を行った。その結果、炭酸ジメチル生成速度は、電解電圧1.2V以上で急激に増加し、メタノール圧に2次、一酸化炭素圧に1次に依存した。又、反応温度は低い方が炭酸ジメチル生成速度が高いことが解った。電解電圧を低減させるために、カソード室に酸素を導入したところ、炭酸ジメチルが生成し始める電圧が約0.6V低下した。この様な反応条件の最適化により、大気圧下、電解電圧0.6V、反応温度70度で炭酸ジメチルが効率よく合成できることが解った。

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  • 気相有機電解法による還元的カルボニル化反応

    Grant number:07215219  1993 - 1995

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    還元的カルボニル化反応の一つであるヒドロホルミル化は、アルデヒドおよびアルコールを製造する重要な反応である。しかし、この反応は高圧と均一錯体触媒を必要とし、生成物と触媒野分離などに多くの問題を残している。本研究では、全く新規なヒドロホルミル化反応として、気相電解法[エチレン,一酸化炭素,カソード|リン酸膜|アノード,水素]の応用を試みた。まず、エチレンのヒドロホルミル化について電極触媒の探索を行った。その結果、塩化白金酸をグラファイトに担持したカソードがプロピオンアルデヒド生成活性を示すことを見いだした。他の生成物としてエタンと水素が生成した。さらに、この電極に様々な添加物を添加してプロピオンアルデヒド生成活性の向上を試みた結果、リン酸ナトリウムを[塩化白金酸/グラファイト]カソードに添加すると、プロピオンアルデヒド生成速度および選択率ともに向上することが解った。この電極を用いると、両電極間を単に短絡するだけで電流が流れ、プロピオンアルデヒドが生成した。ヒドロホルミル化反応の各種反応条件(反応温度、印加電圧、CO圧、エチレン圧など)を変化させ、最適反応条件を明らかにするとともに速度論的検討を行った。その結果、エチレン圧はなるべく高く(90kPa)、一酸化炭素圧はなるべく低く(11kPa)して、373Kで反応を行うと良いことが解った。また、この反応系に電気化学的手法を適用した結果、一酸化炭素が強く配位した白金2価が作用し、ヒドロホルミル化反応を触媒していることが解った。

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  • メタンとエタンの活性化と含酸素有機化合物への転化反応

    Grant number:05225209  1992 - 1994

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    昨年度の成果では、ホウ素とリンの複合酸化物触媒および、その改質触媒がエタンからのアセトアルデヒド合成に高い選択性と活性を示す優れた触媒であることを明らかにした。しかし、これらの触媒はメタンの活性化とホルムアルデヒドの生成には顕著な効果を示さなかった。本年度の研究目的は、メタンの部分酸化反応でホルムアルデヒドを一段で合成する触媒に焦点を絞り、有望な金属酸化物触媒を広く探索した。見出した触媒について反応の速度論的研究を基に、反応機構を考察した。多くの金属複合酸化物触媒を探索した結果、モリブデン酸鉄触媒が優れていることが解った。この触媒は、少量のリチウム、亜鉛、あるいは、セリウムを添加すると、さらに優れたホルムアルデヒド合成触媒に改質された。これらの触媒について、ホルムアルデヒド生成反応に対する流速依存性、酸素分圧依存性、メタン圧依存性、そして、メタノール添加効果などを調べた。その結果、本触媒上でのメタン部分酸化反応は、メタンからメタノールを一度経由してホルムアルデヒドを生成し、ホルムアルデヒドから一酸化炭素、二酸化炭素が生成する、逐次反応経路で進行することが解った。また、活性酸素は触媒表面上に存在する原子状の酸素であり、これと気相のメタン分子がイーレイ・リディール機構により反応していることが解った。

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  • Parial Oxidation of Aromatics with Activated-Oxygen Cell Reactions

    Grant number:04453078  1992 - 1993

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (B)

    OTSUKA Kiyoshi, YAMANAKA Ichiro

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    Grant amount:\5000000 ( Direct Cost: \5000000 )

    One step synthesis of phenol from benzene with reductivated O2 over the cathode was a success by applying an H2 cell reaction system. Cathodes of some carbon materials activated woth HNO3 aq. at refluxing were active for the hydroxylation of benzene. The order of the cathodes for the yield of products was carbon whisker a10 carbon black >> active carbon > graphite.The co-addition of Pd black and Fe2O3 and the addition of CuSO 4 to carbon whisker enhanced the catalytic acticity of the cathode for the hydroxylation of benzene. Especially, the maximum yield of phenol was obtained during generating electricity at 0.3 V for the cathode of carbon whiskeradded CuSO4. This result demonstrates that the possibility of phenol and electroricity. The oxidation of toluene occurredwith our reaction system, producing o-, m-, p-cresols and benzaldehyde, benzyl alcohol. The selectiviy to cresols was high for the cathode of carbom black and active carbon, that to benzaldehyde and benzyl alcohol was high for the cathode of carbon whisker and graphite. The selectivities of the products can be controlled by changing the oncentration of the electrolyte solutions of H3PO4. Cresols were selectively produced (90%) at low concentration of H3PO4, and benzaldehyde was selectively produced (95%) at high concentration. The synergistic effect of active carbon and carbon whisker for the oxidation of toluene was observed. The catalytic activity for the cathode of the mixture of active carbon andcarbon whisker (1 : 1) was 6 tumes of that for active carbon alone and twice of that for carbon whisker alone. These observations could be explained by a Fenton-type chemistry assuming HO・ as an active oxugen.

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  • メタンとエタンの活性化と含酸素有機化合物への転化反応

    Grant number:04241209  1992

    日本学術振興会  科学研究費助成事業  重点領域研究

    大塚 潔, 山中 一郎

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    Grant amount:\2000000 ( Direct Cost: \2000000 )

    先に我々は、数多くの複合金属酸化物を用いて、プロパンの部分酸化反応を調ベ、ホウ素とリンの複合酸化物が、プロピオンアルデヒド、プロピオン酸、アセトンを収率良く生成する優れた触媒である事を見いだしている。本年度は、このホウ素リン複合酸化物をエタンの部分酸化によるアセトアルデヒドの合成およびメタンからホルムアルデヒドへの合成反応に適用を試みた。ホウ素リン複合酸化物は酸化ホウ素と無水リン酸をホウ素とリンの原子比が1対1になるように混合して、600度で2時間焼成することにより調製した。この触媒はエタンの部分酸化反応に有効な触媒であったが主生成物はエチレンであった。この触媒を用いて高濃度のエタンと酸素を用いて反応を実施したところ、反応時間の経過と共にアセトアルデヒドを選択的に生成する触媒へと改質されることを見いだした。この改良ホウ素リン複合酸化物触媒とホウ素リン複合酸化物触媒の活性成分および構造の差について、XRDおよびICP発光法等により検討を行った。その結果、本触媒系のモデルはホウ素リン四酸化物の結晶上に酸化ホウ素が担持されている構造であると推論した。前述した、アセトアルデヒドを選択的に生成する触媒とエチレンを選択的に生成する触媒の差は、担持されている酸化ホウ素の状態が異なることが原因であると考えた。つまり、前者は酸化ホウ素とホウ素リン四酸化物が強く相互作用しており、後者は酸化ホウ素が緩やかに担持されている触媒であると推論した。この触媒モデルの妥当性を検証するために、純粋なホウ素リン四酸化物を合成し、これを担体として酸化ホウ素を担持した触番を種々調製して反応を実施した。その結果、酸化ホウ素を2%担持した時にはアセトアルデヒドを高選択的に生成し、10%の時にはエチレンを高選択的に生成することを見いだした。この結果は、前述の触媒モデルの妥当性を示すものである。

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  • Organic synthesis using fuel cell reactions

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  • de-halogenation of halogenated organic compound

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  • Mono-oxygenation of hydrocarbons by rare earth complex

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  • 燃料電池反応を利用した有機合成

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  • ハロゲン化有機物の脱ハロゲン化

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  • 希土類錯体触媒による炭化水素の酸素化反応

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