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Development of photocatalytic systems for the production of C2 compounds

Research Project

Project/Area Number 19K05511
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionTokyo University of Technology

Principal Investigator

MORIMOTO Tatsuki  東京工科大学, 工学部, 准教授 (40452015)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords光触媒 / 人工光合成 / 二酸化炭素還元 / 多核錯体 / 電子アクセプター / 強発光性 / 多量体 / 多電子貯蔵 / C2化合物 / レニウム錯体 / 環状化合物
Outline of Research at the Start

光触媒的二酸化炭素(CO2)還元反応の実用化に向けて、複数の炭素原子を含む炭素化合物を生成する新規光触媒の開発を設定した。2個のレニウム錯体を近接した位置に配置した二核金属錯体光触媒、および、それを効率的に動作させるための、可視光で多電子を駆動・蓄積する電子プールを設計し、これらを連結することで、シュウ酸などの複数の炭素原子を含む化合物を与える新しい多電子還元光触媒系の実現を目指す。

Outline of Final Research Achievements

New photocatalysts, based on dinuclear- or trinuclear-metal complexes, were designed for photocatalytic systems producing multi-carbon compounds from carbon dioxide (CO2). Several multinuclear complexes, where metal centers were forced to be close to each other by covalent bonds or conformations, were synthesized and the photocatalytic ability was examined. Although no candidates were found to reduce CO2 to multi-carbon compounds, it was revealed that some multinuclear complexes showed higher photocatalytic ability for CO2 reduction to carbon monoxide. Furthermore, it was also found that the distance between metal centers or the conformations affect the photocatalytic performance, which can be a new design criteria for effective photocatalysts for CO2 reduction.

Academic Significance and Societal Importance of the Research Achievements

地球規模の様々な問題に関わっている二酸化炭素(CO2)の処理方法の一つとして、人工光合成によるCO2の再資源化が有望視されている。本研究では、多核化した特定の金属錯体が、従来のCO2還元反応系を上回ることを見出した。さらに、そのCO2還元の効率化が、錯体中の金属中心間の距離や立体配座によることも明らかにし、CO2還元金属錯体光触媒の設計指針の一つを提案できた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Determining Excited-State Structures and Photophysical Properties in Phenylphosphine Rhenium(I) Diimine Biscarbonyl Complexes Using Time-Resolved Infrared and X-ray Absorption Spectroscopies2021

    • Author(s)
      Yuushi Shimoda, Kiyoshi Miyata, Masataka Funaki, Takumi Ehara, Tatsuki Morimoto, Shunsuke Nozawa, Shin-ichi Adachi, Osamu Ishitani, Ken Onda
    • Journal Title

      Inorganic Chemistry

      Volume: 60 Issue: 11 Pages: 7773-7784

    • DOI

      10.1021/acs.inorgchem.1c00146

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ion-pairing π-electronic systems: ordered arrangement and noncovalent interactions of negatively charged porphyrins2021

    • Author(s)
      Sasano Yoshifumi、Tanaka Hiroki、Haketa Yohei、Kobayashi Yoichi、Ishibashi Yukihide、Morimoto Tatsuki、Sato Ryuma、Shigeta Yasuteru、Yasuda Nobuhiro、Asahi Tsuyoshi、Maeda Hiromitsu
    • Journal Title

      Chemical Science

      Volume: 12 Issue: 28 Pages: 9645-9657

    • DOI

      10.1039/d1sc02260a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increase in CO2 reduction rate via optical near-field effect2020

    • Author(s)
      Takashi Yatsui, Yuki Nakamura, Yosuke Suzuki, Tatsuki Morimoto, Yuma Kato, Muneaki Yamamoto, Tomoko Yoshida, Wataru Kurashige, Nobuyuki Shimizu, Yuichi Negishi, Kenji Iida, Katsuyuki Nobusada
    • Journal Title

      Journal of Nanophotonics

      Volume: 14 Issue: 04 Pages: 046011-046011

    • DOI

      10.1117/1.jnp.14.046011

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Realization of red shift of absorption spectra using optical near-field effect2019

    • Author(s)
      Yatsui Takashi、Nakahira Yusuke、Nakamura Yuki、Morimoto Tatsuki、Kato Yuma、Yamamoto Muneaki、Yoshida Tomoko、Iida Kenji、Nobusada Katsuyuki
    • Journal Title

      Nanotechnology

      Volume: 30 Issue: 34 Pages: 34LT02-34LT02

    • DOI

      10.1088/1361-6528/ab2092

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Photocatalytic CO2 reduction by multinuclear rhenium complexes having metal centers separated by various distances2022

    • Author(s)
      飯嶋理恵・森本樹
    • Organizer
      日本化学会 第102春季年会(2022)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photocatalytic CO2 Reduction by Multinuclear Rhenium Complexes with Various Conformers2021

    • Author(s)
      Rie Iijima, Tatsuki Morimoto
    • Organizer
      16th International Workshop on Supramolecular Nanoscience of Chemically Programmed Pigments
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レニウム多核錯体を用いた光触媒的CO2還元2021

    • Author(s)
      飯嶋理恵・森本樹
    • Organizer
      第13回大学コンソーシアム八王子学生発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 立体配座を規制したレニウム三核錯体による光触媒的二酸化炭素還元2020

    • Author(s)
      飯嶋 理恵, 森本 樹
    • Organizer
      錯体化学会 第70回討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] Photocatalytic CO2 reduction by trinuclear rhenium complexes2020

    • Author(s)
      IIJIMA, Rie; MORIMOTO, Tatsuki
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Research-status Report
  • [Book] 錯体化合物事典2019

    • Author(s)
      錯体化学会
    • Total Pages
      1000
    • Publisher
      朝倉書店
    • ISBN
      9784254141054
    • Related Report
      2019 Research-status Report
  • [Remarks] 東京工科大学・工学部応用化学科・光機能性錯体化学研究室

    • URL

      http://www.cloud.teu.ac.jp/public/ENF/morimotottk/index.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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