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Development of a photoinduced electron transportation system by using liquid-liquid phase migration

Research Project

Project/Area Number 22K14769
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionKyoto University

Principal Investigator

Nakada Akinobu  京都大学, 工学研究科, 講師 (20845531)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords光触媒 / 人工光合成 / 光電子移動 / 金属錯体 / 半導体 / 光誘起電子移動 / 電子伝達 / Z-スキーム
Outline of Research at the Start

本研究では、有用生成物を得る還元反応と水の酸化反応を相分離したそれぞれ異なる溶媒相で進行させることで反応場を分離した新しい光触媒システムを構築し、水を電子源とした人工光合成反応を高効率化することを目的とする。相間移動に共役した光電子伝達の学理を確立することで、有用な還元反応(H2製造およびCO2還元固定化など)を伴う光エネルギー変換反応の高効率化に幅広く適用できるプラットホームを構築する。

Outline of Final Research Achievements

In this research, we constructed a new photocatalytic system in which the reaction field is separated by conducting the reduction reaction to produce useful products and the oxidation reaction of water in different phase-separated solvents, and we developed an artificial photosynthesis reaction using water as an electron source. We demonstrated a reductive coupling reaction in the organic phase using a phase-transfer electron mediator and a photocatalytic water oxidation reaction in the aqueous phase. In this reaction, the mediator that donates electrons moves to the aqueous phase, accepts the electrons necessary for water oxidation, and functions as a phase-transfer electron mediator that moves back to the organic phase.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した光触媒システムは、反応溶液の相分離を利用して酸化と還元反応の反応場を分離することで選択的な光電子伝達経路を与える「仕組み」を与えるものである。今後、本システムのさらなる改良により、電極や導線を必要としない水を電子源とした様々な分子変換反応の実現に向けた光触媒システムの提案に結びつくものと期待される。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (15 results) (of which Int'l Joint Research: 8 results,  Invited: 5 results) Remarks (2 results)

  • [Journal Article] Light-induced electron transfer/phase migration of a redox mediator for photocatalytic C?C coupling in a biphasic solution2022

    • Author(s)
      Itagaki Ren、Takizawa Shin-ya、Chang Ho-Chol、Nakada Akinobu
    • Journal Title

      Dalton Transactions

      Volume: 51 Issue: 24 Pages: 9467-9476

    • DOI

      10.1039/d2dt01334g

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photoexcited charge manipulation in conjugated polymers bearing a Ru(<scp>ii</scp>) complex catalyst for visible-light CO<sub>2</sub> reduction2022

    • Author(s)
      Nakada Akinobu、Miyakawa Ryuichi、Itagaki Ren、Kato Kosaku、Takashima Chinami、Saeki Akinori、Yamakata Akira、Abe Ryu、Nakai Hiromi、Chang Ho-Chol
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 10 Issue: 37 Pages: 19821-19828

    • DOI

      10.1039/d2ta02183h

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Light-Driven CO2 Fixation/Conversion by Designed Molecular Assemblies2024

    • Author(s)
      Akinobu Nakada
    • Organizer
      13th Japan-China Joint Symposium on Metal Cluster Compounds
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 非混和性二相溶液間を自発的に移動する電子伝達体により水の酸化と統合された新規光触媒反応系の開発2024

    • Author(s)
      板垣 廉、中田 明伸、鈴木 肇、冨田 修、張 浩徹、阿部 竜
    • Organizer
      日本化学会第104春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Metal Complex/Semiconductor Hybrid Photoelectrocatalysts and Photocatalysts for CO2 Reduction2023

    • Author(s)
      Akinobu Nakada
    • Organizer
      2023 MRS Fall Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Photocatalytic Reductive C_C Coupling Driven by Light-Induced Electron Transfer/Phase Migration of a Redox Mediator in a Biphasic Solution2023

    • Author(s)
      Ren Itagaki, Akinobu Nakada, Hajime Suzuki, Osamu Tomita, Ho-Chol Chang, Ryu Abe
    • Organizer
      MRS Fall Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photocatalytic Reactions Using Water as an Electron Source Driven by Phase-Migrating Electron Mediators2023

    • Author(s)
      Ren Itagaki, Akinobu Nakada, Hajime Suzuki, Osamu Tomita, Ho-Chol CHANG, Ryu Abe
    • Organizer
      2023年光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] フェロセニウム/フェロセンの二液相間電子伝達により駆動する水を電子源とする光触媒反応2023

    • Author(s)
      板垣 廉、中田 明伸、鈴木 肇、冨田 修、張 浩徹、阿部 竜
    • Organizer
      第34回配位化合物の光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Construction of a biphasic photocatalytic system driven by electron mediators migrating across liquid-liquid interphase2023

    • Author(s)
      Ren Itagaki, Akinobu Nakada, Ho-Chol Chang, Ryu Abe
    • Organizer
      31th International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design of Z-scheme photocatalysis for light-to-chemical conversion2023

    • Author(s)
      Akinobu Nakada
    • Organizer
      7th Catalysis and Chemical Engineering Conferences
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 相間移動型電子メディエーターを介した水を電子源とする光触媒反応2023

    • Author(s)
      板垣 廉・中田 明伸・阿部 竜・張 浩徹
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Design of photocatalyst materials for solar hydrogen production and carbon dioxide conversion2022

    • Author(s)
      Akinobu Nakada
    • Organizer
      3rd Japanese-American-German Frontiers of Science Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Charge transportation system based on photoredox-directed phase migration in photocatalysis2022

    • Author(s)
      Akinobu Nakada
    • Organizer
      UNIST-KU Symposium in 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] フェロセニウム/フェロセン型電子伝達体のレドックス誘起相間移動により駆動する光触媒システムの構築2022

    • Author(s)
      板垣 廉・中田 明伸・阿部 竜・張 浩徹
    • Organizer
      第12回CSJ化学フェスタ2022
    • Related Report
      2022 Research-status Report
  • [Presentation] フェロセニウム/フェロセン型電子伝達体の相間移動により駆動する光触媒反応2022

    • Author(s)
      板垣 廉・中田 明伸・阿部 竜・張 浩徹
    • Organizer
      錯体化学会 第72回討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] フェロセニウムを電子受容体とした二相溶液における水の光酸化反応2022

    • Author(s)
      板垣 廉・中田 明伸・阿部 竜・張 浩徹
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Light-Induced Electron Transfer/Phase Migration of a Redox Mediator for the Photocatalytic C-C Coupling in a Biphasic Solution2022

    • Author(s)
      Ren Itagaki, Akinobu Nakada, Shin-ya Takizawa, Ho-Chol Chang
    • Organizer
      8th Asian Conference On Coordination Chemistry
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Remarks]

    • URL

      https://sites.google.com/view/akinobunakada-web/home

    • Related Report
      2023 Annual Research Report
  • [Remarks] 中田明伸 個人ホームページ

    • URL

      https://sites.google.com/view/akinobunakada-web/home?authuser=0

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

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