MCM-41 supported Co-Mo bimetallic catalysts for enhanced hydrogen production by ammonia decomposition

被引：98

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

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 207卷

关键词：

Ammonia decomposition; Hydrogen production; Co-Mo bimetallic catalysts; Synergistic effect; MCM-41; COBALT; NANOPARTICLES; REDUCTION; NITRIDES; GROWTH; NH3;

D O I：

10.1016/j.cej.2012.05.100

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

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.

引用

页码：103 / 108

页数：6

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