文献类型：会议论文

英文题名：MCM-41 supported Co-Mo bimetallic catalysts for enhanced hydrogen production by ammonia decomposition

作者：Duan, Xuezhi[1];Qian, Gang[1];Zhou, Xinggui[1];Chen, De[2];Yuan, Weikang[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway

会议论文集：22nd International Symposium on Chemical Reaction Engineering (ISCRE)

会议日期：SEP 02-05, 2012

会议地点：Maastricht, NETHERLANDS

语种：英文

外文关键词：Ammonia decomposition; Hydrogen production; Co-Mo bimetallic catalysts; Synergistic effect; MCM-41

摘要：MCM-41 supported Co, Mo and Co-Mo bimetallic catalysts with different Co/Mo atomic ratios were prepared by incipient wetness impregnation, and the channels of MCM-41 acted as nano-reactor. The catalysts without pre-nitridation treatments were directly used to catalyze ammonia decomposition. The characterization of the catalysts was carried out by N-2 physisorption, H-2-TPR, Raman, XRD, TEM and XPS. The results show that the catalysts have the similar size distribution of metallic particles. Due to the synergistic effect between Co and Mo, MCM-41 supported Co-Mo bimetallic catalysts show higher ammonia decomposition activity compared to Co or Mo alone. The Co-Mo bimetallic catalyst with the Co/Mo atomic ratio of about 7/3 exhibits the highest NH3 conversion. Moreover, the Co7Mo3/MCM-41 catalyst shows good thermal stability. (C) 2012 Elsevier B.V. All rights reserved.