文献类型：期刊文献

英文题名：Three dimensionally ordered macroporous CeO2-ZnO catalysts for enhanced CO oxidation

作者：Mu, Guangyu[1];Liu, Chuan[2];Wei, Qinglian[1];Huang, Yongmin[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[2]Shanghai Inst Space Prop, Shanghai Engn Res Ctr Space Engine, Shanghai 201112, Peoples R China

年份：2016

卷号：181

起止页码：161

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20162502521867);WOS:【SCI-EXPANDED(收录号:WOS:000381540100039)】；

基金：This work was provided by the National Natural Science Foundation of China (No. 21476071), Shanghai Leading Academic Discipline Project (B502) and the Shanghai Engineering Research Center of Space Engine (Grant no. 13DZ2250600).

语种：英文

外文关键词：Three-dimensionally ordered macroporous; CeO2-ZnO; Oxidation; Porous materials

摘要：Three dimensionally ordered macroporous (3DOM) ceria-zinc catalysts were prepared by colloidal crystal templated method. The CeO2-ZnO catalysts possess 3DOM skeleton composed of CeO2 and ZnO nano particles with mesoporous of 2-4 nm. By solely modulating Ce/Zn molar ratio, phase compositions, surface elemental states and catalytic performance can be controlled. Compared with 3DOM CeO2 and ZnO, the 3DOM ceria-zinc catalysts exhibit higher catalytic activity, which results from the synergetic interaction between CeO2 and ZnO. The T-100 (CO complete conversion temperature) of 3DOM sample is lower than the particle-type one, indicating the advantage of ordered macroporous structure in CO oxidation. The 3DOM(2:1)CeO2-ZnO catalyst shows catalytic stability in three-cycle test with T-100 at 260-265 degrees C. (C) 2016 Elsevier B.V. All rights reserved.