CeO_2/CuO catalysts using different template agent for preferential CO oxidation in H_2-rich stream  

作　　者：Xiaolin Yan Aiai Zhang Meiyi Gao Shanghong Zeng 

机构地区：[1]College of Science, Inner Mongolia Agricultural University [2]School of Chemistry and Chemical Engineering, Inner Mongolia University

出　　处：《Journal of Rare Earths》2017年第12期1216-1220,共5页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(21466024);the Natural Science Foundation of Inner Mongolia(2014MS0217,2015MS0209)

摘　　要：The CeO2/CuO catalysts using different template agent（F68 L64, F127 and P123） were synthesized by the simple template and impregnation method. They were characterized by FESEM, XRD, N2 physisorption and H2-TPR techniques. It is found that the CeO2/CuO catalysts are double pore distribution, and CeO2 can enter into the gap of CuO supports and form the contact interface of copper and cerium. Among the asprepared catalysts, the CeO2/CuO-F127 catalyst displays better activity at lower temperature and the CeO2/CuO-P123 catalyst presents higher activity at higher temperature. The CeO2/CuO-P123 catalyst has the smallest crystallite sizes of CuO and CeO2 as well as the largest size of cubes, which may improve the interaction of copper and cerium and enhance the performance of CO oxidation.The CeO2/CuO catalysts using different template agent（F68 L64, F127 and P123） were synthesized by the simple template and impregnation method. They were characterized by FESEM, XRD, N2 physisorption and H2-TPR techniques. It is found that the CeO2/CuO catalysts are double pore distribution, and CeO2 can enter into the gap of CuO supports and form the contact interface of copper and cerium. Among the asprepared catalysts, the CeO2/CuO-F127 catalyst displays better activity at lower temperature and the CeO2/CuO-P123 catalyst presents higher activity at higher temperature. The CeO2/CuO-P123 catalyst has the smallest crystallite sizes of CuO and CeO2 as well as the largest size of cubes, which may improve the interaction of copper and cerium and enhance the performance of CO oxidation.

关 键 词：Copper-cerium oxides Template agent Interaction CO oxidation 

分 类 号：O643.36[理学—物理化学]