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【材料学院】学术报告五:In situ XAFS characterization of CuFe2O4 catalysts

2019年02月27日

报告主题:In situ XAFS characterization of CuFe2O4  catalysts under oxidation, reduction and stream reforming  conditions

报告嘉宾:Pongtanawat_Khemthong(研究员)

时   间:2019年2月27日(周三)上午10:  30

地   点:材料学院536会议室

 

报告人简介

Dr. Pongtanawat Khemthong is a senior researcher in Nanomaterials for  Energy and Catalysis Laboratory, National Nanotechnology Center, Thailand. His  research area focuses in synthesis and characterization of nanomaterials for  catalysis and adsorption. He obtained PhD in Suranaree University of Technology,  Thailand. Afterwards, he worked as a Postdoctoral researcher in Institute for  Molecular Science, Okazaki, Japan, visiting scientist in Synchrotron, Spring-8,  Hyogo, Japan and visiting scientist in the Institute of Researches on Catalysis  and Environment. He is an expert in characterization using modern synchrotron  technique.

报告内容简介

  Copper ferrite (CuFe2O4)  spinel can provide excellent performance for generating hydrogen feeds through  methanol steam reforming reaction. The activity of CuFe2O4 spinel is strongly  dependent on method to synthesis because it can influence on the Cu particle  size and its dispersion which could lead to better catalytic performance.  Thus, in this work, a series of CuFe2O4  catalysts have prepared and studied for their oxidation, reduction and catalytic  behaviors. Throughout this investigation, the advanced in situ X-ray absorption  fine structure (in situ XAFS) technique, including the extended X-ray absorption  fine structure (EXAFS) and X-ray absorption near edge structure (XANES) are  performed to elucidate the relationship between synthesis methods and catalytic  performance on hydrogen production from methanol steam reforming under various  conditions. We have expected that the understanding of structural behaviors of  the three different Cu-Fe spinel catalysts prepared in this work could  rationally explain their catalytic performance for production of H2 from  methanol.

 

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