文献类型：期刊文献

英文题名：Dynamics of the Cu/CeO2 catalyst during methanol steam reforming

作者：Jin, Shiqing[1];Li, Didi[1];Wang, Zhen[1];Wang, Yiming[1];Sun, Li[1];Zhu, Minghui[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：12

期号：23

起止页码：7003

外文期刊名：CATALYSIS SCIENCE & TECHNOLOGY

收录：;EI(收录号：20224813164276);WOS:【SCI-EXPANDED(收录号:WOS:000882751900001)】；

基金：This work is sponsored by the National Natural Science Foundation of China (22078089), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning and the Shanghai Sailing Program (19YF1410600).

语种：英文

外文关键词：Catalyst activity - Precipitation (chemical) - Steam reforming - Ternary alloys

摘要：Supported Cu/CeO2 catalysts with various loadings prepared by a deposition-precipitation method are thoroughly investigated with a series of in situ characterization techniques. The catalyst surface contains metallic Cu-0 and interfacial sites, with the latter acting as the key active sites for the methanol steam reforming reaction. Moreover, the structures of both sites dynamically change in response to various environmental conditions. The Cu-0 sites on larger Cu particles are more prone to oxidation than those on small ones, and the Cu-O-v-Ce interfacial sites are partially oxidized during the MSR reaction.