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Electrochemical Synthesis of High-valence Transition Metal Oxides and Their Application as Catalysts

Research Project

Project/Area Number 17K18973
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Materials engineering and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Yagi Shunsuke  東京大学, 生産技術研究所, 准教授 (60452273)

Research Collaborator YAMADA Ikuya  
IKENO Hidekazu  
HIRAI Shigeto  
KAMIHARA Yoichi  
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords電気化学触媒 / アノード分極 / 高原子価 / 酸素欠損 / 酸素発生反応 / 酸化還元 / 高原子価イオン / 触媒活性 / ペロブスカイト酸化物 / 電解合成
Outline of Final Research Achievements

A method to produce transition metal ions with a high valence state was studied by making a strong oxidizing atmosphere via electrochemical operation. As a result, it was confirmed that Co and Ni ions with a high valence state can be partially produced by anodically polarizing oxides in a basic aqueous solution. In further research, oxygen defects in oxides were found to significantly affect the catalytic activity for the oxygen evolution reaction, and the catalytic activity was successfully increased by controlling the amount of oxygen defects.

Academic Significance and Societal Importance of the Research Achievements

本研究では、常圧下において得ることが困難な高原子価イオンを簡便な電気化学的手法を用いて得る手法について検討を行った。その結果、塩基性水溶液中におけるアノード分極により酸化物中のCoやNiなどの遷移金属イオンがどの程度酸化されるのか、また産業的に重要な反応である酸素発生反応に対する触媒活性がどのように変化するかについて知見を得た。さらに酸素欠損と触媒活性の関連性についても検討し、高性能な触媒の設計指針や新規触媒候補材料の提案を行うことができ、学術的にも社会的にも意義のある成果が得られた。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (17 results)

All 2018 2017 Other

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results) Remarks (2 results)

  • [Journal Article] Systematic Study of Descriptors for Oxygen Evolution Reaction Catalysis in Perovskite Oxides2018

    • Author(s)
      I. Yamada, A. Takamatsu, K. Asai, T. Shirakawa, H. Ohzuku, A. Seno, T. Uchimura, H. Fujii, S. Kawaguchi, K. Wada, H. Ikeno, and S. Yagi
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 122 Issue: 49 Pages: 27885-27892

    • DOI

      10.1021/acs.jpcc.8b09287

    • NAID

      120006719655

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synergistically Enhanced Oxygen Evolution Reaction Catalysis for Multielement Transition-Metal Oxides2018

    • Author(s)
      I. Yamada, A. Takamatsu, K. Asai, H. Ohzuku, T. Shirakawa, T. Uchimura, S. Kawaguchi, H. Tsukasaki, S. Mori, K. Wada, H. Ikeno, and S. Yagi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 1 Issue: 8 Pages: 3711-3721

    • DOI

      10.1021/acsaem.8b00511

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxygen vacancy-originated highly active electrocatalysts for the oxygen evolution reaction2018

    • Author(s)
      S. Hirai, K. Morita, K. Yasuoka, T. Shibuya, Y. Tojo, Y. Kamihara, A. Miura, H. Suzuki, T. Ohno, T. Matsuda, and S. Yagi
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 6 Issue: 31 Pages: 15102-15109

    • DOI

      10.1039/c8ta04697b

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxygen Evolution via Bridging Inequivalent Dual Site Reaction: First-Principles Study of a Quadruple Perovskite Oxide Catalyst2017

    • Author(s)
      A. Takamatsu, I. Yamada, S. Yagi, H. Ikeno
    • Journal Title

      J. Phys. Chem. C

      Volume: 121 Issue: 51 Pages: 28403-28411

    • DOI

      10.1021/acs.jpcc.7b10748

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Non-Fermi Liquids as Highly Active Oxygen Evolution Reaction Catalysts2017

    • Author(s)
      S. Hirai, S. Yagi, W.-T. Chen, F.-C. Chou, N. Okazaki, T. Ohno, H. Suzuki, T. Matsuda
    • Journal Title

      Adv. Sci.

      Volume: 4 Issue: 10 Pages: 1700176-1700176

    • DOI

      10.1002/advs.201700176

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] OER Mechanism of Cobalt-based Layered Compounds2018

    • Author(s)
      S. Hirai, M. Furunaka, S. Yagi, T. Ohno, T. Matsuda
    • Organizer
      Korea-Japan International Symposium on Materials Science and Technology 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Unique Electronic Structure as a Key Factor for Highly Active Oxygen Evolution Catalysts2018

    • Author(s)
      S. Hirai, S. Yagi, W.-T. Chen, T. Ohno, H. Suzuki, T. Matsuda
    • Organizer
      69th Annual Meeting of ISE
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Introduction of Ruthenates as Promising Oxygen Evolution Catalysts2018

    • Author(s)
      S. Hirai, S.Yagi, T. Ohno, T. Matsuda
    • Organizer
      APSMR, SPARCA 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 部分酸素欠損を含むペロブスカイト型鉄コバルト酸化物の酸素発生触媒特性2018

    • Author(s)
      小竹 恭央, 山田 幾也, 八木 俊介, 岡 研吾
    • Organizer
      日本セラミックス協会 第31回秋季シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高圧処理による酸素欠損ペロブスカイト型酸化物の酸素量制御と触媒特性2018

    • Author(s)
      小竹恭央, 山田幾也, 八木俊介, 岡研吾, 浅井海成
    • Organizer
      第59回高圧討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超高圧下におけるペロブスカイト型酸化物の合成と酸素発生触媒評価2017

    • Author(s)
      浅井海成, 山田幾也, 高松晃彦, 小槻日出夫, 池野豪一, 八木俊介
    • Organizer
      日本高圧力学会 第58回高圧討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 第一原理計算による四重ペロブスカイト型酸化物の表面安定性と酸素発生過電圧の評価2017

    • Author(s)
      高松晃彦, 池野豪一, 山田幾也, 八木俊介
    • Organizer
      日本高圧力学会 第58回高圧討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 水素および酸素製造のための電気化学触媒開発2017

    • Author(s)
      八木俊介
    • Organizer
      2017年度第3回生研サロン
    • Related Report
      2017 Research-status Report
  • [Presentation] 異常高原子価イオンを含むペロブスカイト型酸化物の超高圧合成と酸素発生触媒活性2017

    • Author(s)
      浅井海成, 山田幾也, 高松晃彦, 小槻日出夫, 池野豪一, 八木俊介
    • Organizer
      2017年電気化学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 四重ペロブスカイト型酸化物表面における酸素発生過電圧の第一原理計算2017

    • Author(s)
      高松晃彦, 池野豪一, 山田幾也, 八木俊介
    • Organizer
      2017年度電気化学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 【共同発表】鉄系超伝導体が拓く高性能な酸素発生触媒の世界

    • URL

      https://www.iis.u-tokyo.ac.jp/ja/news/3039/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 超伝導材料にも酸素発生触媒にもなりうるマルチな機能性材料を開発

    • URL

      https://univ-journal.jp/24667/

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2017-07-21   Modified: 2020-03-30  

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