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Water Oxidation Reaction Catalyzed by Penta-nuclear Complexes Bearing Proton Dissociative Sites

Research Project

Project/Area Number 16H07420
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Inorganic chemistry
Research InstitutionInstitute for Molecular Science

Principal Investigator

Okamura Masaya  分子科学研究所, 生命・錯体分子科学研究領域, 特別訪問研究員 (90782251)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords人工光合成 / 多核金属錯体 / プロトン共役電子移動 / 錯体化学 / 酸素発生反応
Outline of Final Research Achievements

Inspired by natural enzymes, we assumed that the catalyst should have multi-nucler structure and proton dissociative sites to efficiently catalyze multi-electron transfer reactions. In this research project, we investigated penta-nuclear complexes with proton dissociative sites, and found the following two important results.
(I) We succeeded in developing a penta-iron complex that catalyzes water oxidation with the lower overpotential. (II) We successfully synthesized a penta-nuclear metal complex with a confined proton, and demonstrated kinetic proton dissociation from the complex.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (9 results)

All 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 2 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Development of a framework catalyst for photocatalytic hydrogen evolution2018

    • Author(s)
      Chinapang Pondchanok、Okamura Masaya、Itoh Takahiro、Kondo Mio、Masaoka Shigeyuki
    • Journal Title

      Chemical Communications

      Volume: 54 Issue: 10 Pages: 1174-1177

    • DOI

      10.1039/c7cc08013a

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fe, Ru, and Os Complexes with the Same Molecular Framework: Comparison of Structures, Properties and Catalytic Activities2017

    • Author(s)
      Masaki Yoshida, Mio Kondo, Masaya Okamura, Mari Kanaike, Setsiri Haesuwannakij, Hidehiro Sakurai, and Shigeyuki Masaoka
    • Journal Title

      Faraday Discuss.

      Volume: 印刷中 Pages: 181-196

    • DOI

      10.1039/c6fd00227g

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 酸素発生触媒の開発─金属錯体によるアプローチ2017

    • Author(s)
      岡村将也, 正岡重行
    • Journal Title

      月刊機能材料

      Volume: 37 Pages: 51-59

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Electrocatalytic Water Oxidation by a Tetranuclear Copper Complex2016

    • Author(s)
      Vijayendran K. K. Praneeth, Mio Kondo, Pei Meng Woi, Masaya Okamura, and Shigeyuki Masaoka
    • Journal Title

      ChemPlusChem

      Volume: 81 Issue: 10 Pages: 1123-1128

    • DOI

      10.1002/cplu.201600322

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] An iron-based catalyst that mimics function of the oxygen-evolving complex2017

    • Author(s)
      Masaya Okamura, Mio Kondo, Reiko Kuga, Yuki Kurashige, Takeshi Yanai, Shinya Hayami, Vijayendran K. K. Praneeth, Masaki Yoshida, Ko Yoneda, Satoshi Kawata, and Shigeyuki Masaoka
    • Organizer
      The 6th Asian Conference on Coordination Chemistry (ACCC6)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 人工光合成の実現を目指した高活性な酸素発生触媒の開発2017

    • Author(s)
      岡村将也
    • Organizer
      先端錯体工学研究会 2017年度年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] A Proton Confined in Pentanuclear Metal Complexes2017

    • Author(s)
      Masaya Okamura, Mari Kanaike, Hitoshi Izu, Chihiro Matsui, Reiko Kuga, Satoshi Kawata, Mio Kondo and Shigeyuki Masaoka
    • Organizer
      錯体化学会第67回討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Water oxidation reaction catalyzed by pentanuclear iron complexes2017

    • Author(s)
      Masaya Okamura, Mio Kondo, Reiko Kuga, Yuki Kurashige, Takeshi Yanai, Shinya Hayami, Vijayendran K. K. Praneeth, Masaki Yoshida, Ko Yoneda, Satoshi Kawata, and Shigeyuki Masaoka
    • Organizer
      ICARP2017
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 柔軟なプロトン移動能を有する鉄5核錯体の酸素発生触媒機能2016

    • Author(s)
      岡村将也・久我れい子・川田 知・近藤美欧・正岡重行
    • Organizer
      錯体化学会第66回討論会
    • Related Report
      2016 Annual Research Report

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Published: 2016-09-02   Modified: 2019-03-29  

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