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Mechanism of photocatalytic water splitting on well-defined oxide surfaces under water vapor environment.

Research Project

Project/Area Number 24860033
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionKyoto University

Principal Investigator

SUGIMOTO Toshiki  京都大学, 大学院・理学研究科, 助教 (00630782)

Project Period (FY) 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords表面 / 界面物性 / 光触媒 / 表面・界面物性 / 表面吸着水 / 赤外吸収分光 / プレッシャーギャプ
Research Abstract

We established the foundation of the In-situ/operando vibrational spectroscopy of water adsorbed on photocatalytic surfaces. The (0001) surfaces of α-Cr2O3(0001) was prepared as a surface of model catalyst. We succeeded in controlling the thickness of quasi-liquid water layer on CaF2 surfaces, which may open up a new technique to study photocatalytic reaction at gas/solid interface. Heterodyne-detected sum frequency generation spectroscopy for water adsorbed on solid surfaces was developed as a probe of photocatalytic process.

Report

(2 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (10 results)

All 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) Remarks (1 results)

  • [Journal Article] Electron-Phonon Coupling Dynamics at Oxygen Evolution Sites of Visible-Light-Driven Photocatalyst: Bismuth Vanadate2013

    • Author(s)
      Norihiro Aiga, Qingxin Jia, Kazuya Watanabe, Akihiko Kudo, Toshiki Sugimoto, and Yoshiyasu Matsumoto
    • Journal Title

      J. Phys. Chem. C

      Volume: 117 Pages: 9881-9881

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Gas Behavior in the Vacuum Chamber with a Single Adsorption Site on the Wall Surface: Origin of the Exponential Pressure Decay with the Time Constant of Sub-Kilo Seconds

    • Author(s)
      Toshiki SUGIMOTO, Kotaro TAKEYASU and Katsuyuki FUKUTANI
    • Journal Title

      J. Vac. Soc. Jpn.

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of a pumping curve of water with the conversion equation from pressure to adsorption density of states

    • Author(s)
      Kotaro TAKEYASU, Toshiki SUGIMOTOand Katsuyuki FUKUTANI
    • Journal Title

      J. Vac. Soc. Jpn

    • NAID

      130003384891

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Presentation] 可視光応答型光触媒BiVO4表面のホールトラップサイトにおける電子格相互作用の観測2013

    • Author(s)
      相賀則宏、ジア・チンシン、渡邊一也、工藤昭彦、杉本敏樹、松本吉泰
    • Organizer
      分子研研究会「先端的レーザー分光の若手シンポジウム」
    • Place of Presentation
      分子科学研究所
    • Year and Date
      2013-02-13
    • Related Report
      2012 Final Research Report
  • [Presentation] Coherent Phonons at Hole Trapping Sites of Visible-light-driven Photocatalyst BiVO42012

    • Author(s)
      Norihiro Aiga, Jia Qingxin, Kazuya Watanabe, Akihiko Kudo, Toshiki Sugimotoand Yoshiyasu Matsumoto
    • Organizer
      Lorentz Center Workshop "Dynamical Phenomena at Surfaces"
    • Place of Presentation
      Leiden, Netherlands
    • Year and Date
      2012-11-26
    • Related Report
      2012 Final Research Report
  • [Presentation] δ関数型の吸着状態密度を持つ真空容器内のガスの挙動2012

    • Author(s)
      杉本敏樹,武安光太郎, 福谷克之
    • Organizer
      第53回真空に関する連合講演会
    • Place of Presentation
      甲南大学ポートアイランドキャンパス
    • Year and Date
      2012-11-15
    • Related Report
      2012 Final Research Report
  • [Presentation] 圧力-吸着状態密度変換式による実排気曲線の解析2012

    • Author(s)
      武安光太郎, 杉本敏樹,福谷克之
    • Organizer
      第53回真空に関する連合講演会
    • Place of Presentation
      甲南大学ポートアイランドキャンパス
    • Year and Date
      2012-11-15
    • Related Report
      2012 Final Research Report
  • [Presentation] Cr2O3表面でのH2O分解及びH2発生の解明に向けた装置開発2012

    • Author(s)
      奥村直、杉本敏樹、渡邊一也、松本吉泰
    • Organizer
      第3回真空・表面科学若手勉強会
    • Place of Presentation
      甲南大学ポートアイランドキャンパス
    • Year and Date
      2012-11-13
    • Related Report
      2012 Final Research Report
  • [Presentation] CaF2製真空容器窓材への水吸着挙動2012

    • Author(s)
      大関真生、白井健次、杉本敏樹、渡邊一也、松本吉泰
    • Organizer
      第3回真空・表面科学若手勉強会
    • Place of Presentation
      甲南大学ポートアイランドキャンパス
    • Year and Date
      2012-11-13
    • Related Report
      2012 Final Research Report
  • [Remarks]

    • URL

      http://www.kuchem.kyoto-u.ac.jp/organization/member/toshiki.html

    • Related Report
      2012 Final Research Report

URL: 

Published: 2012-11-27   Modified: 2019-07-29  

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