学 术 报 告 In situ X-ray absorption spectroscopy studies of catalytic and energy materials in liquid 报告人：Dr. Yongfeng Hu （ Staff scientist, Canadian Light Source, Saskatoon, Saskatchewan, Canada ） 时间：9月30日（周五）8:30-10:00 地点：图书馆多功能厅 报告内容: X-ray absorption spectroscopy (XAS) is a useful technique for studying electronic and structural properties of materials. When these measurements were performed in-situ, it is valuable to identify the reactive species and monitor the reaction kinetics. This could significantly improve our understanding of material property and advance our ability of rational design of material with improved performance. Many of the in-situ studies were performed in solid state using hard X-rays. However, many processes, such as catalytic reactions and energy related applications, such as water splitting reactions and lithium ion batteries were carried out in liquid phase. In this presentation, we will report the recent development of various in-situ liquid cells and chamber for studies of catalytic and energy materials in liquid using a medium energy beamline at the Canadian Light Source. After a brief introduction of the synchrotron and related techniques, I will present a few examples of applications on Li ion battery, fuel cell and nano-catalysts. 报告人简介： Dr. Yongfeng Hu got his Ph.D in Physical Chemistry from the University of Western Ontario (UWO) in 1996. Then he was Postdoctoral Fellow in UWO from 1996 to 1997, and in Princeton University from 1997 to 1998. He was Research Scientist and beamline manager in Canadian Synchrotron Radiation Facility, SRC, University of Wisconsin-Madison from 2000 to 2003. In 2003, he joined Canadian Light Source in Saskatoon and served as Staff Scientist. He was also an Adjunct Professor of Chemical Engineering in U. of Saskatchewan from 2008. His interests and specialties includes Synchrotron instrumentation and Application of Synchrotron radiation techniques. He has published over 200 peer-reviewed papers in areas of atomic and molecular chemistry and physics, material and environmental science, and synchrotron instrumentation. 化工资源有效利用国家重点实验室　化学工程学院 刘清雅教授邀请