A novel PdNi/Al_2O_3 catalyst prepared by galvanic deposition for low temperature methane combustion

作     者：Xiqiang Pan Yibo Zhang Zhenzhen Miao Xiangguang Yang 

作者机构：State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied ChemistryChinese Academy of Sciences Laboratory of Green Chemistry and ProcessChangchun Institute of Applied ChemistryChinese Academy of Sciences University of Chinese Academy of Sciences 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2013年第22卷第4期

页      面：610-616页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (21273221) the National High Technology Research and Development Program of China (863 Program, 2011AA03A406) 

主　　题：methane catalytic combustion palladium Pd/Al2O3 galvanic replace reaction 

摘      要：Galvanic deposition method was used to prepare the Pd/Ni-Al2O3-GD catalyst for the combustion of methane under lean conditions. The new catalyst and compared catalysts （Pd/Al2O3-IW, Pd-Ni/Al2O3-IW, Pd/Ni-Al2O3-IW） prepared by incipient wetness impregnation were characterized by N2-physisorption, XRD and TEM to clarify particle size and size distribution of palladium species. Combined O2-TPD and XPS results with the catalytic data, it shows that the surface palladium species with low valence exhibits better combustion performance due to their stronger interaction with support. The results indicate that the galvanic deposition method is an effective route to prepare efficient catalyst for methane combustion, and it also provides useful information for improving the present commercial catalyst.