CO oxidation over CuO catalysts supported on CeO_2-ZrO_2 prepared by microwave-assisted co-precipitation:The influence of CuO content

作     者：杨志强 毛东森 郭晓明 卢冠忠 YANG Zhiqiang;MAO Dongsen;GUO Xiaoming;LU Guanzhong

作者机构：Research Institute of Applied CatalysisSchool of Chemical and Environmental EngineeringShanghai Institute of Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2014年第32卷第2期

页      面：117-123页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by National Natural Science Foundation of China(21273150) ‘‘Shu Guang’’ Project of Shanghai Municipal Education Commission Shanghai Education Development Foundation(10GG23) 

主　　题：cerium-zirconium mixed oxide copper oxide microwave heating CO oxidation rare earths 

摘      要：CeO2-ZrO2 mixed oxide （Ce0.6Zr0.402） prepared by microwave-assisted heating co-precipitation was used as a support to prepare a series of CuO/Ce0.6Zr0.402 catalysts with various CuO contents （0 wt.%-1 5 wt.%） via the method of incipient-wetness im- pregnation. The obtained CuO/Ce0.6Zr0.402 samples were characterized by N2 adsorption, XRD, Raman, TEM and H2-TPR technolo- gies, and their catalytic activities for CO oxidation were investigated. The results showed that the activity of CuO/Ce0.6Zr0.402 catalyst was strongly influenced by the content of CuO, and the catalyst with 10 wt.% CuO exhibited the best catalytic activity in CO oxida- tion, which could be attributed to the high dispersion and reducibility of CuO, and high oxygen vacancy concentration in the catalyst.