期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 39, 期 13, 页码 6813-6818出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.02.155
关键词
Hydrogen production; Hydrolysis; Hydrides; Rare earths; Nickel; Magnesium alloys
资金
- NBRPC (973 Program) [2010CB631302]
- NSFC [U1201241, 51271078]
- KLGHEI [KLB11003]
Nickel has shown to be a good catalyst for improving the hydrolysis performances of hydrogenated Mg3RE (abbreviated as H-Mg3RE, RE = La, Ce, Pr, Nd) through investigating the hydrolysis kinetics and mechanisms of hydrogenated Mg3RENi0.1 (abbreviated as H-Mg3RENi0.1). A material with superior hydrolysis performance, namely H-Mg3CeNi0.1 has been identified, which can generate 276 mL g(-1) min(-1) hydrogen in the first 1.5 min and achieve a total yield of 1088 mL g(-1). Ni served to modify the hydrolysis mechanisms of H-Mg3La, H-Mg3Pr, and H-Mg3Nd to improve their hydrolysis properties. Moreover, Ni has been found to promote the direct hydrolysis of CeH3 to GeO2 to liberate more hydrogen and to render the stable Nd2H5 reactive towards water. Therefore, the studied H-Mg3RE systems all show improved hydrolysis properties after the addition of Ni. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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