Mechanism of reactions at interfaces studied with highly sensitive vibrational spectroscopy

2015 Fiscal Year Final Research Report

• Project/Area Number: 25248006
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Kyoto University
• Principal Investigator: Matsumoto Yoshiyasu 京都大学, 理学(系)研究科(研究院), 教授 (70181790)
• Co-Investigator(Kenkyū-buntansha): HOSHI Nagahiro 千葉大学, 大学院工学研究科, 教授 (30238729)
• Co-Investigator(Renkei-kenkyūsha): WATANABE Kazuya 京都大学, 大学院理学研究科, 准教授 (30300718) ; SUGIMOTO Toshiki 京都大学, 大学院理学研究科, 助教 (00630782)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 振動分光 / 表面・界面 / 高感度化 / 電荷ダイナミックス / 光触媒

Outline of Final Research Achievements

It is vital to understand various elementary steps involving in heterogeneous catalytic reactions including water splitting with photocatalyst from academic and technological points of view. This study aimed for improving detection sensitivity of vibrational modes of chemical species at interfaces and exploring how the species interact with photoinduced carriers in the substrate.
Specifically, we have succeeded in detecting vibrational modes of Cs intercalated in graphene and Ir using plasmon resonance excitation, and clarifying the water-adsorption-state dependence of hole trapping ability of titania nanoparticles.

Free Research Field

物理化学