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Electronic excited states in photocatalysts observed with Raman spectroscopy

Research Project

Project/Area Number 24655014
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Physical chemistry
Research InstitutionKobe University

Principal Investigator

ONISHI Hiroshi  神戸大学, 理学(系)研究科(研究院), 教授 (20213803)

Research Collaborator FURUHASHI Koji  神戸大学, 理学研究科
MIZUTANI Takao  神戸大学, 理学研究科
PARK Yohan  神戸大学, 理学研究科
AN Longjie  神戸大学, 理学研究科
LI Haoliang  神戸大学, 理学研究科
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords光触媒 / 電子励起状態 / 反応速度 / 電子-正孔再結合 / 固溶体 / コアシェル構造 / タンタル酸ナトリウム / 表面再構成 / ラマン散乱 / 水分解反応 / 水素燃料 / ドーピング / 共鳴ラマン散乱 / 格子振動 / 酸化チタン / ペロブスカイト / 共鳴ラマン分光 / 励起電子 / 正孔
Outline of Final Research Achievements

The purpose of this study is revealing fundamental issues in photocatalysts for the water splitting reaction driven by solar light. Two research topics were examined; (1) electronic excited states of TiO2 photocatalysts observed with resonant Raman scattering and (2) electron-hole recombination kinetics in NaTaO3 photocatalysts doped with strontium.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (43 results)

All 2015 2014 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (27 results) (of which Invited: 7 results) Remarks (12 results)

  • [Journal Article] Rate of Ag Photodeposition on Sr-doped NaTaO3 Photocatalysts as Controlled by Doping Sites2015

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Journal Title

      e-Journal of Surface Science and Nanotechnology

      Volume: 13

    • NAID

      130005073184

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Electron-Hole Recombination Controlled by Doping Sites in Perovskite-structured Photocatalysts: Sr-doped NaTaO32015

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Journal Title

      ACS Catalysis

      Volume: 5 Issue: 6 Pages: 3196-3206

    • DOI

      10.1021/acscatal.5b00484

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Time-Resolved Infrared Absorption Study of SrTiO3 Photocatalysts Codoped with Rhodium and Antimony2013

    • Author(s)
      Koji Furuhashi, Jia Qingxin, Akihiko Kudo, Hiroshi Onishi
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 117 Issue: 37 Pages: 19101-19106

    • DOI

      10.1021/jp407040p

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Phonon Mode of TiO2 Coupled With the Electron Transfer From N3 Dye2013

    • Author(s)
      Tomonori Nomoto, Keita Fujio, Akira Sasahara, Hajime Okajima, Naoki Koide, Hiroyuki Katayama, Hiroshi Onishi
    • Journal Title

      Journal of Chemical Physics

      Volume: 138 Issue: 22 Pages: 224704-224704

    • DOI

      10.1063/1.4807850

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Electron-hole Recombination Controlled by Doping Sites in Perovskite-structured Photocatalysts: Sr-doped NaTaO32015

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Organizer
      249th ACS National Meeting
    • Place of Presentation
      Denver,CO, アメリカ
    • Year and Date
      2015-03-22 – 2015-03-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Overview:結晶多形および表面・界面2015

    • Author(s)
      大西 洋
    • Organizer
      第62回応用物理学会春季学術講演会「二酸化チタンの最近の動向」シンポジウム
    • Place of Presentation
      東海大学, 神奈川
    • Year and Date
      2015-03-11 – 2015-03-14
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] NaTaO3 Photocatalysts Doped with Sr in A-site or in B-site2014

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Organizer
      2014 International Conference on Artificial Photosynthesis (ICARP2014)
    • Place of Presentation
      淡路国際会議場, 兵庫
    • Year and Date
      2014-11-24 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] Sn-doped TiO2 Photocatalysts Prepared via Sol-gel Method with Citric Acid2014

    • Author(s)
      Hao Liang Li, Hiroshi Onishi
    • Organizer
      2014 International Conference on Artificial Photosynthesis (ICARP2014)
    • Place of Presentation
      淡路国際会議場, 兵庫
    • Year and Date
      2014-11-24 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] Infrared Absorption Spectrum of Electrons Excited in TiO2 Photocatalysts2014

    • Author(s)
      Takao Mizutani, Hiroshi Onishi
    • Organizer
      2014 International Conference on Artificial Photosynthesis (ICARP2014)
    • Place of Presentation
      淡路国際会議場, 兵庫
    • Year and Date
      2014-11-24 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] The Surface Science of Doped NaTaO3 Photocatalysts2014

    • Author(s)
      Hiroshi Onishi
    • Organizer
      2014 International Conference on Artificial Photosynthesis (ICARP2014)
    • Place of Presentation
      淡路国際会議場, 兵庫
    • Year and Date
      2014-11-24 – 2014-11-28
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Solvothermal Synthesis of Ga-doped SrTiO3 Photocatalysts2014

    • Author(s)
      Yohan Park, Hiroshi Onishi
    • Organizer
      2014 International Conference on Artificial Photosynthesis (ICARP2014)
    • Place of Presentation
      淡路国際会議場, 兵庫
    • Year and Date
      2014-11-24 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] スズをドープした酸化チタン光触媒の調製と解析2014

    • Author(s)
      李浩亮
    • Organizer
      神戸大学理学研究科第5回サイエンスフロンティア研究会
    • Place of Presentation
      神戸大学, 兵庫
    • Year and Date
      2014-10-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] SrドープNaTaO3の表面再構成と光触媒機能:よいドーパントを探す法則の探求2014

    • Author(s)
      Longjie An, 大西洋
    • Organizer
      第4回CSJ化学フェスタ2014
    • Place of Presentation
      船堀タワーホール, 東京
    • Year and Date
      2014-10-14 – 2014-10-16
    • Related Report
      2014 Annual Research Report
  • [Presentation] 金属ドープSrTiO3光触媒の溶媒熱合成2014

    • Author(s)
      Park Yohan,大西 洋
    • Organizer
      第4回CSJ化学フェスタ2014
    • Place of Presentation
      船堀タワーホール, 東京
    • Year and Date
      2014-10-14 – 2014-10-16
    • Related Report
      2014 Annual Research Report
  • [Presentation] NaTaO3光触媒の励起ダイナミクス2014

    • Author(s)
      大西 洋
    • Organizer
      第114回触媒討論会
    • Place of Presentation
      広島大学, 広島
    • Year and Date
      2014-09-25 – 2014-09-27
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] NaTaO3 photocatalysts selectively modified with Sr dopant at A-site or B-site2014

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Organizer
      The Seventh Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT7)
    • Place of Presentation
      京都テルサ, 京都
    • Year and Date
      2014-06-01 – 2014-06-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Sr-doped NaTaO3 Photocatalysts Prepared via Solid State Reaction or Hydrothermal Reaction2014

    • Author(s)
      Longjie An, Takao Mizutani, Hiroshi Onishi
    • Organizer
      第113回触媒討論会
    • Place of Presentation
      愛知
    • Related Report
      2013 Research-status Report
  • [Presentation] 酸化チタン参照光触媒の励起電子による赤外吸収スペクトル2014

    • Author(s)
      水谷天勇, 大西洋
    • Organizer
      第113回触媒討論会
    • Place of Presentation
      愛知
    • Related Report
      2013 Research-status Report
  • [Presentation] NaTaO3 Photocatalysts modified with Sr at B- or A-site via Solid State Reaction or Hydrothermal Reaction2013

    • Author(s)
      Longjie An, Hiroshi Onishi
    • Organizer
      神戸大学研究基盤センター若手フロンティア研究会2013
    • Place of Presentation
      兵庫
    • Related Report
      2013 Research-status Report
  • [Presentation] 電子励起状態の酸化チタン光触媒の赤外分光法による分析2013

    • Author(s)
      水谷天勇, 大西洋
    • Organizer
      神戸大学研究基盤センター若手フロンティア研究会2013
    • Place of Presentation
      兵庫
    • Related Report
      2013 Research-status Report
  • [Presentation] SrをドーピングしたNaTaO3光触媒の表面再構成2013

    • Author(s)
      安龍傑, 大西洋
    • Organizer
      第33回表面科学学術講演会・第54回真空に関する連合講演会
    • Place of Presentation
      茨城
    • Related Report
      2013 Research-status Report
  • [Presentation] Infrared Spectra of Titanium Oxide Photocatalysts Irradiated with UV-Light2013

    • Author(s)
      Takao Mizutani, Hiroshi Onishi
    • Organizer
      日本分光学会国際シンポジウム「分光学の太陽電池・天然/人工光合成への応用」
    • Place of Presentation
      大阪
    • Related Report
      2013 Research-status Report
  • [Presentation] SrドープNaTaO3光触媒の表面構造とキャリアダイナミクス2013

    • Author(s)
      大西洋
    • Organizer
      東京大学物性研究所短期研究会「エネルギーと新材料の物性・物質科学」
    • Place of Presentation
      千葉
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Raman Observation of Sr-doped NaTaO3 Photocatalysts2013

    • Author(s)
      Longjie An
    • Organizer
      神戸大学理学研究科化学専攻学術講演会
    • Place of Presentation
      兵庫
    • Related Report
      2013 Research-status Report
  • [Presentation] Raman Observation of Sr-doped NaTaO3 Photocatalysts2013

    • Author(s)
      Longjie An, Shoko Okumura, Koji Furuhashi, Hiroshi Onishi
    • Organizer
      第112回触媒討論会
    • Place of Presentation
      秋田
    • Related Report
      2013 Research-status Report
  • [Presentation] 触媒反応は原子レベルでどこまで理解されたのか2013

    • Author(s)
      大西洋
    • Organizer
      (財)新世代研究所第2回界面ナノ科学研究会
    • Place of Presentation
      鎌倉
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 表面界面の分子科学2012

    • Author(s)
      大西洋
    • Organizer
      北海道大学低温科学研究所共同研究・研究集会「表面科学と 結晶成長」
    • Place of Presentation
      札幌
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 時間分解赤外分光法によるSrドープNaTaO3光触媒の研究2012

    • Author(s)
      古橋幸嗣, 大西洋
    • Organizer
      第110回触媒討論会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Presentation] 赤外吸収スペクトルによる酸化チタン光触媒の研究2012

    • Author(s)
      水谷天勇, 古橋幸嗣, 大西洋
    • Organizer
      第6回分子科学討論会2012
    • Place of Presentation
      東京
    • Related Report
      2012 Research-status Report
  • [Presentation] Infrared Absorption by Electrons Excited in Doped Photocatalsts2012

    • Author(s)
      大西洋
    • Organizer
      The International Symposium on Photocatalysis(第31回光がかかわる触媒化学シンポジウム)
    • Place of Presentation
      京都
    • Related Report
      2012 Research-status Report
  • [Presentation] Infrared Absorption by Electrons Excited in Doped Photocatalysts2012

    • Author(s)
      大西洋
    • Organizer
      Seminar at Karlsruher Institut fur Technologie
    • Place of Presentation
      ドイツ
    • Related Report
      2012 Research-status Report
    • Invited
  • [Remarks] 神戸大学理学研究科化学専攻大西研究室

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/

    • Related Report
      2014 Annual Research Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-E.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-C.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-K.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 神戸大学 理学研究科 大西研究室

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/

    • Related Report
      2013 Research-status Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-E.html

    • Related Report
      2013 Research-status Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-C.html

    • Related Report
      2013 Research-status Report
  • [Remarks] Kobe University, Onishi Laboratory

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-K.html

    • Related Report
      2013 Research-status Report
  • [Remarks] 神戸大学 理学研究科 化学専攻 大西研究室

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index.html

    • Related Report
      2012 Research-status Report
  • [Remarks] 神戸大学 理学研究科 化学専攻 大西研究室(英語版)

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-E.html

    • Related Report
      2012 Research-status Report
  • [Remarks] 神戸大学 理学研究科 化学専攻 大西研究室(中国語版)

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-C.html

    • Related Report
      2012 Research-status Report
  • [Remarks] 神戸大学 理学研究科 化学専攻 大西研究室(韓国語版)

    • URL

      http://www.edu.kobe-u.ac.jp/sci-onishi/index-K.html

    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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