期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 33, 期 13, 页码 3346-3350出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2008.04.010
关键词
hydrogen desorption; LiAlH4; HMPA
资金
- US Army Cerdec
In this study, hydrogen desorption from LiAlH4 in HMPA solution was investigated. One equiv. H atom per LiAlH4 was evolved from the solution at ambient temperature. Heating the solution to similar to 90 C led to the evolution of three more H atoms. Unlike the solid-state thermal decomposition, LiAlH4 in solution does not decompose to the Li3AlH6 intermediate. In fact, Li3AlH6, was found to be unstable in HMPA. Two equiv. H atoms were found to detach from Li3AlH6 upon mixing it with HMPA at ambient temperature. Subsequent heating of the resulting solution to 90 C resulted in the dehydrogenation of ca. 4 equiv. H atoms. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
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