Surface observation of photocatalyst for water splitting by in-situ X-ray absorption spectroscopy

2011 Fiscal Year Final Research Report

• Project/Area Number: 22850015
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Functional materials chemistry
• Research Institution: Keio University
• Principal Investigator: YOSHIDA Masaaki 慶應義塾大学, 理工学部, 助教 (00582206)
• Project Period (FY): 2010 – 2011
• Keywords: 表面 / 界面

Research Abstract

Photocatalytic water splitting is a promising technology for the sustainable production of hydrogen gas as an energy carrier. The utilization of metal or metal-oxide particle cocatalysts to semiconductor photocatalysts greatly enhances the overall photecatalytic efficiency. In this study, the electronic structure of cocatalyst on the semiconductor photocatalyst under UV irradiation was investigated by the in-situ X-ray absorption spectroscopy.

Research Products

• [Journal Article] Photo-excited carrier transfer from Nb : SrTiO_3-photoelectrode to Co-oxide-cocatalyst for oxygen evolution studied by in situ XAFS (2011)
  • Author(s): Masaaki Yoshida, Takahisa Hata, Takumi Yomogida, Ryo Toyoshima, Hitoshi Abe, Hiroshi Kondoh
  • Journal Title: Photon Factory Activity Report Volume: 28 Pages: 86
• [Presentation] In-situ電気化学XAFS法による水分解用光電極上の酸素生成助触媒への電荷移動の観察 (2012)
  • Author(s): 吉田真明、蓬田匠、畑廷尚、豊島遼、新田清文、加藤和男、増田卓也、仁谷浩明、阿部仁、高草木達、宇留賀朋哉、朝倉清高、魚崎浩平、近藤寛
  • Organizer: 日本化学会第92春季年会
  • Place of Presentation: 横浜
  • Year and Date: 2012-03-26
• [Presentation] In-Situ電気化学蛍光XAFSによる光電極表面上の助触媒への電荷移動の測定 (2012)
  • Author(s): 蓬田匠、吉田真明、畑廷尚、豊島遼、新田清文、加藤和男、増田卓也、仁谷浩明、阿部仁、高草木達、宇留賀朋哉、朝倉清高、魚崎浩平、近藤寛
  • Organizer: 第29回PFシンポジウム
  • Place of Presentation: 筑波
  • Year and Date: 2012-03-15
• [Presentation] Ambient Pressure XPSによる酸化チタンへの窒素ドーピング反応過程の研究 (2012)
  • Author(s): 紋谷祐爾、吉田真明、豊島遼、鈴木和馬、阿部仁、雨宮健太、間瀬一彦、近藤寛
  • Organizer: 第29回PFシンポジウム
  • Place of Presentation: 筑波
  • Year and Date: 2012-03-15
• [Presentation] Ambient Pressure XPSによる窒素ドープ酸化チタン光触媒の生成過程の追跡 (2011)
  • Author(s): 紋谷祐爾、吉田真明、豊島遼、鈴木和馬、阿部仁、雨宮健太、間瀬一彦、近藤寛
  • Organizer: 第31回表面科学学術講演会
  • Place of Presentation: 船堀
  • Year and Date: 2011-12-16
• [Presentation] Photo-excited carrier transfer from Nb : SrTiO_3photoelectrode to cobalt oxide cocatalyst for oxygen evolution studied by in situ XAFS (2011)
  • Author(s): 吉田真明、畑廷尚、蓬田匠、豊島遼、阿部仁、近藤寛
  • Organizer: ISSS-6
  • Place of Presentation: 船堀
  • Year and Date: 2011-12-14
• [Presentation] Study on formation process of nitrogen doped TiO_2with using ambient pressure XPS (2011)
  • Author(s): 紋谷祐爾、吉田真明、豊島遼、鈴木和馬、阿部仁、雨宮健太、間瀬一彦、近藤寛
  • Organizer: ISSS-6
  • Place of Presentation: 船堀
  • Year and Date: 2011-12-14
• [Presentation] In-situ電気化学XAFS法によるNb : SrTiO_3光電極から酸化コバルト助触媒への光励起キャリア移動の観察 (2011)
  • Author(s): 吉田真明、畑廷尚、蓬田匠、豊島遼、阿部仁、近藤寛
  • Organizer: 第14回XAFS討論会
  • Place of Presentation: 東岡崎
  • Year and Date: 2011-09-10
• [Presentation] Ambient Pressure XPSを用いた窒素ドープ酸化チタン光触媒の生成過程についての研究 (2011)
  • Author(s): 紋谷祐爾、吉田真明、小宇佐友香、原田大雅、豊島遼、阿部仁、雨宮健太、間瀬一彦、近藤寛
  • Organizer: 日本化学会第91春季年会
  • Place of Presentation: 横浜
  • Year and Date: 2011-03-26
• [Presentation] Photo-excited carrier transfer from GaN-photocatalyst to Pt-cocatalyst for hydrogen evolution studied by ATR-SEIRAS (2010)
  • Author(s): 吉田真明、山方啓、久保田純、大澤雅俊、堂免一成
  • Organizer: TOCAT6/APCAT5
  • Place of Presentation: 札幌
  • Year and Date: 2010-07-22
• [Remarks]
  • URL: http://www.chem.keio.ac.jp/～kondoh/index/jp/