文献类型：期刊文章

作　　者：姚小江[1] 李露露[2,3] 邹伟欣[2,3] 虞硕涵[2,3] 安继斌[4] 李红丽[1] 杨复沫[1] 董林[2,3]

机构地区：[1]中国科学院重庆绿色智能技术研究院中国科学院水库水环境重点实验室,重庆400714 [2]南京大学化学化工学院介观化学教育部重点实验室,江苏南京210093 [3]南京大学现代分析中心江苏省机动车尾气污染控制重点实验室,江苏南京210093 [4]重庆文理学院环境材料与修复技术重庆市重点实验室,重庆402160

出　　处：《Chinese Journal of Catalysis》

基　　金：supported by the National Natural Science Foundation of China (21507130);the Open Project Program of Chongqing Key Laboratory of Environmental Materials and Remediation Technology from Chongqing University of Arts and Sciences (CEK1405);the Open Project Program of Beijing National Laboratory for Molecular Sciences (20140142);the Open Project Program of Jiangsu Key Laboratory of Vehicle Emissions Control (OVEC001);the Open Project Program of Chongqing Key Laboratory of Catalysis and Functional Organic Molecules from Chongqing Technology and Business University (1456029);the Chongqing Science & Technology Commission (cstc2014pt-gc20002)~~

年　　份：2016

卷　　号：37

期　　号：8

起止页码：1369-1380

语　　种：中文

收录情况：AJ、BDHX、BDHX2014、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2015_2016、EI(收录号：20163602772361)、JST、RSC、SCI(收录号：WOS:000381326900023)、SCI-EXPANDED(收录号：WOS:000381326900023)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：A series of CeO2‐MnOx‐Al2O3 mixed oxide catalysts （Ce：Mn：Al mole ratio=6：4：x, x=0.25, 0.5, 1, 2） were prepared by a simple one‐step inverse co‐precipitation method to investigate the influence of the incorporation of Al3＋ into CeO2‐MnOx mixed oxides. CeO2‐MnOx, CeO2‐Al2O3, and MnOx‐Al2O3 mixed oxides, and CeO2 were prepared by the same method for comparison. The samples were characterized by XRD, Raman, N2 physisorption, H2‐TPR, XPS, and in situ DRIFTS. The catalytic re‐duction of NO by CO was chosen as a model reaction to evaluate the catalytic performance. The incorporation of a small amount of Al3＋into CeO2‐MnOx mixed oxides resulted in a decrease of crys‐tallite size, with the increase of the BET specific surface area and pore volume, as well as the in‐crease of Ce3＋and Mn4＋. The former benefits good contact between catalyst and reactants, and the latter promotes the adsorption of CO and the desorption, conversion and dissociation of adsorbed NO. All these enhanced the catalytic performance for the NO＋CO model reaction. A reaction mecha‐nism was proposed to explain the excellent catalytic performance of CeO2‐MnOx‐Al2O3 catalysts for NO reduction by CO.

关 键 词：Ceria-based mixed oxide  Incorporation  Electron interaction  Adsorption property  NO elimination  

分 类 号：X734.2] O643.36]