SSL Seminar Series 2006 No. 3

Date: 17 July (Monday), 2006
Time: 3:00am-4:00pm
Venue: Physics Conference Room (Blk S13 # M-11/12)

Speaker: Professor Shinya Yagi
Title: Molecular adsorption system on transition metal surface studied by NEXAFS and XPS

To understand the catalytic reaction on metal, we have investigated the molecular adsorption system on transition metal studied by both NEXAFS and XPS techniques with synchrotron light. In the previous study for Rh(100) surface, we have studied the adsorption reaction of dimethylsulfide ((CH3)2S: DMS) at 90-300 K. There are three kinds of adsorbates, which are chemisorbed DMS, CH3S- (dissociated from DMS) and atomic sulfur. From the point of recycling process for the catalytic view, the chemisorbed sulfur atoms occur a sulfur poisoning. The sulfur poisoning makes to decrease the catalytic activity by the electron screening. In the present study, we have cleared that the chemisorbed sulfur atoms can only desorb from the surface under oxygen environment. We will also introduce our recent studies in this seminar.

Biographical Data:
Born: Hiroshima, Japan 23rd March 1966
Education: B.S. 1990 Faculty of Physics, Hiroshima University
M.S. 1992 Graduate School of Science, Hiroshima University
Ph. D. 1995 Hiroshima University
Post Doctoral Position 1995-1996, Institute of Molecular Science, Okazaki Jpn
Research Associate 1996-2000, Synchrotron Radiation Center, Hiroshima University
Associate Professor 2000- Graduate School of Engineering, Nagoya University
Visiting Researcher 2000- Hiroshima University
Chief Scientist 2003-2005, Innovation Plaza Hiroshima, Japan Science and Technology Agency