Mechanistic Study on catalytic reaction by combination of soft-x-ray and infrared operando spectroscopy

2016 Fiscal Year Final Research Report

• Project/Area Number: 26248008
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Keio University
• Principal Investigator: Kondoh Hiroshi 慶應義塾大学, 理工学部(矢上), 教授 (80302800)
• Co-Investigator(Kenkyū-buntansha): 吉田 真明 慶應義塾大学, 理工学部, 助教 (00582206) ; 雨宮 健太 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (80313196)
• Co-Investigator(Renkei-kenkyūsha): YOSHINOBU Jun 東京大学, 物性研究所, 教授 (50202403)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 触媒反応機構 / オペランド観測 / 軟X線分光 / 赤外分光

Outline of Final Research Achievements

In this study it was aimed to develop spectroscopic operando observation systems using soft-X-rays and infrared rays and to apply these techniques to detection of catalytically active phases and reactants adsorbing on the active phases under reaction conditions. The development of both operando observation systems has been successfully achieved, which enables us to observe catalytically active surfaces under reaction conditions via X-ray photoelectron spectroscopy, polarized X-ray absorption spectroscopy and polarization-modulation infrared reflection absorption spectroscopy, combined with monitoring of catalytic activity by mass spectrometry. On the basis of this approach we have been able to reveal catalytically active phases and reaction mechanisms, which had been hardly uncovered, and thus we could demonstrate that this approach is useful in catalytic studies.

Free Research Field

表面化学