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Investigation on Activity Enhancement of Porous Coordination Polymer Photocatalysts Based on Thermally-Assisted Photochemical Processes

Research Project

Project/Area Number 21K05231
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2021)

Principal Investigator

Horiuchi Yu  大阪公立大学, 大学院工学研究科, 准教授 (90611418)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords多孔性金属錯体 / 多孔性配位高分子 / 可視光応答型光触媒 / 欠陥制御 / 水素製造 / 光触媒 / 水素生成
Outline of Research at the Start

太陽光と水から水素を製造することが可能な光触媒水分解系の構築は、現在のエネルギー問題の解決策として有望視されている。有機-無機ハイブリッド骨格に基づくユニークな光機能性を実現する多孔性金属錯体(PCP)は光触媒開発における有望な材料候補であるが、実用化に資する高い反応効率を実現するに至っていない。本研究では、PCP光触媒の新規材料設計の観点から、光と熱の同時印加により配位子欠陥を導入する新規手法を確立するとともに、構築した欠陥サイトの反応性評価と同サイトへの選択的かつ高分散な助触媒複合化を通して、高効率太陽光水分解系を実現するPCP光触媒の開発を行う。

Outline of Final Research Achievements

In this research, new material design for porous coordination polymer (PCP) photocatalysts based on thermally-assisted photochemical processes has been investigated. Simultaneous light irradiation and mild heating for an amine-functionalized Ti-based PCP (Ti-PCP-NH2) led to the elimination of a part of the organic linkers while keeping its porous framework. The thus-obtained defective Ti-PCP-NH2 showed much higher photoactivity for visible light-driven hydrogen evolution reaction than the parent one without linker defects. Applying mild heating during the photocatalytic reaction was also able to improve activity of Ti-PCP-NH2, which would be due to the in-situ formation of dangling bond. Moreover, photodeposition of Pt cocatalysts during the photocatalytic reaction with mild heating resulted in the effective enhancement of photoactivity ofTi-PCP-NH2. All these results showed the linker defect engineering by photothermal treatment is effective way to design PCP photocatalysts.

Academic Significance and Societal Importance of the Research Achievements

本研究では、多孔性金属錯体(PCP)の特徴に基づき、多孔性骨格のフレキシブル性を利用することで、PCP材料内での新規な光触媒反応サイトの創出手法と助触媒固定化手法の開発に成功した。これらは、太陽光水素製造プロセスの根幹を担う高効率光触媒を設計する上での重要技術と言え、現在のエネルギー・環境問題の解決を前進させる研究成果である。加えて、本技術は、吸着サイトの創出が重要となるガス吸着材、ガス分離材を始めとする他の機能性材料の設計にも応用可能であり、多岐の分野の発展に貢献しうる研究成果である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 7 results,  Invited: 5 results) Book (1 results)

  • [Journal Article] Solar light-driven selective photoelectrochemical CO2 reduction to CO in aqueous media using Si nanowire arrays decorated with Au and Au-based metal nanoparticles2023

    • Author(s)
      Horiuchi Yu、Miyazaki Keisuke、Tachibana Mika、Nishigaki Kenichi、Matsuoka Masaya
    • Journal Title

      Research on Chemical Intermediates

      Volume: 49 Issue: 3 Pages: 1131-1146

    • DOI

      10.1007/s11164-023-04959-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Synthetic Route to MoS2 Catalysts Supported on a Metal-Organic Framework for Electrochemical Hydrogen Evolution Reaction Utilizing Chemical Vapor Deposition2021

    • Author(s)
      Nishigaki Kenichi、Katagiri Makoto、Matsuoka Masaya、Horiuchi Yu
    • Journal Title

      Energy & Fuels

      Volume: 36 Issue: 1 Pages: 548-553

    • DOI

      10.1021/acs.energyfuels.1c03454

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 多孔性金属錯体(MOF)を利用した光触媒材料開発2023

    • Author(s)
      堀内 悠
    • Organizer
      第132回触媒討論会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Facile shaping of MOFs using flexible organosilane gels for the application to gas adsorption materials2022

    • Author(s)
      Hironori Iwahashi, Yu Horiuchi, Masaya Matsuoka
    • Organizer
      Osaka-Kansai International Symposium on Catalysis (OKCAT2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of metal-organic framework photocatalysts with linker defects for efficient hydrogen production under visible light2022

    • Author(s)
      Yu Horiuchi, Masaya Matsuoka
    • Organizer
      12th International Conference on Environmental Catalysis (ICEC2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Linker defect engineering of a metal-organic framework to improve its activity for photocatalytic hydrogen evolution reaction2022

    • Author(s)
      Yu Horiuchi, Masaya Matsuoka
    • Organizer
      The 9 th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT9)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of visible-light-responsive MOF photocatalysts and strategies for improving their activity2022

    • Author(s)
      Horiuchi Yu、Matsuoka Masaya
    • Organizer
      International Symposium on Energy/Environmental Catalysis
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 金属酸化物クラスターの電子構造制御を目的とするTiドープ型Zr系MOF光触媒の調製と光水素生成反応2021

    • Author(s)
      田中知樹、加藤拓海、堀内悠、松岡雅也
    • Organizer
      第128回触媒討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 太陽光水素製造に向けた有機無機ハイブリッド材料を利用する光触媒開発2021

    • Author(s)
      堀内悠
    • Organizer
      第128回テクノラボツアー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Applications of MOF photocatalysts for water splitting reactions2021

    • Author(s)
      Matsuoka Masaya、Horiuchi Yu
    • Organizer
      1st Japan-China Symposium on Catalysis
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of visible-light-responsive photocatalysts based on MOFs and strategy for their activity enhancement2021

    • Author(s)
      Horiuchi Yu
    • Organizer
      2021 Nankai International Symposium on Catalysis
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Visible-Light-Driven Photocatalytic Hydrogen Evolution Using Ti-Based MOFs with Linker Defects2021

    • Author(s)
      Horiuchi Yu、Tatewaki Kenta、Mine Shinya、Matsuoka Masaya
    • Organizer
      The 9th International Symposium on Surface Science (ISSS9)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 二元系酸化物クラスターからなるMOF光触媒の調製と光水素生成反応への応用2021

    • Author(s)
      田中知樹、加藤拓海、堀内悠、松岡雅也
    • Organizer
      第40回 固体・表面光化学討論会
    • Related Report
      2021 Research-status Report
  • [Book] 触媒技術の動向と展望20242024

    • Author(s)
      堀内 悠
    • Total Pages
      10
    • Publisher
      一般社団法人触媒学会
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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