报告题目：Catalytic conversion of CO2and CH4to oxygenate through C-C coupling on metal oxide catalysts
报 告 人：葛庆峰 教授
报告摘要：Converting CO2to fuel or feedstock chemicals using CH4takes advantage of cheap and abundant shale gas while alleviating the greenhouse effect. Previous research focuses on reforming CH4with CO2to produce syngas, which can then be converted to the value-added chemicals via the Fischer-Tropsch process. The reforming reaction breaks all C-H bonds in CH4, making the process energy intensive. Preserving as many C-H bonds as necessary in the CHx moiety while enable its coupling with the activated CO2is an attractive alternative but presents a formidable challenge since it requires simultaneously stabilizing the CHx moiety from CH4and activating the chemically inert CO2. Recently, we used DFT calculations in combination with kinetics modeling to demonstrate that direct C-C coupling of sigma-bonded CH3on a Zn active site and activated CO2is possible and acetic acid is the likely product. We extended the concept to interfacial active sites that combined different functionalities and worked synergistically. The successful implementation of such a design would have a broad impact on the greenhouse gas conversion and energy industry.
报告人简介：Dr. Qingfeng Ge is University Distinguished Scholar and Professor in the Department of Chemistry and Biochemistry of Southern Illinois University Carbondale and an Associate Editor of Journal of CO2Utilization (Elsevier). Dr. Ge received his education in Chemical Engineering from Tianjin University, China, obtaining B.S., M.S. and Ph.D degrees. He worked as Postdoctoral Research Associate in Copenhagen University, Denmark and Cambridge University, U.K. and as Research Scientist in University of Virginia. He joined SIUC as an Assistant Professor in 2003 and was promoted to Associate Professor in 2007 and to Professor in 2010. He is one of the 70 recipients of the Presidential Hydrogen Fuel Initiative grants in 2005 and the winner of 2018 ACS Midwest award. A main thrust of his research is using modeling/simulation in combination with experimental studies to address materials issues related to energy and environment. Current research projects include CO2hydrogenation, electrochemical reduction of CO2, CO2coupling with methane, and biomass conversion/utilization. His experiences ranged from experimental characterization and kinetics modeling to first principles based simulations of catalytic materials and processes. He authored/coauthored ~ 160 peer-reviewed publications.