Rh doping effect on coking resistance of Ni/SBA-15 catalysts in dry reforming of methane

作     者：Wen-Jia Cai Lin-Ping Qian Bin Yue He-Yong He 

作者机构：Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy Materials Fudan University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2014年第25卷第11期

页      面：1411-1415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] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(21173050 21371035) 

主　　题：Methane reforming Carbon dioxide Rh–Ni/SBA 15 Carbon deposition 

摘      要：A series of SBA-15 supported bimetallic Rh–Ni catalysts with different weight ratio of Rh/Ni in the range of 0–0.04 were prepared for carbon dioxide reforming of methane. The doping effect of Rh on catalytic activity as well as carbon accumulation and removal over the catalysts was studied. The characterization results indicated that the addition of a small amount of Rh promoted the reducibility of Ni particles and decreased the Ni particle size. During the dry reforming reaction, the carbon deposition was originated from CH4 decomposition and CO disproportionation. The Rh–Ni catalyst with small metallic particle size inhibited the carbon formation and exhibited high efficiency in the removal of coke. In comparison with bare Ni-based catalyst, the Rh–Ni bimetallic catalysts showed high activity and stability in the dry reforming of methane.