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Study on the dehydrogenation properties and reversibility of Mg(BH4)2AlH3 composite under moderate conditions
Authors:Jiaguang Zheng  Xuezhang Xiao  Liuting Zhang  Yan He  Shouquan Li  Hongwei Ge  Lixin Chen
Affiliation:1. State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China;2. Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, PR China
Abstract:Mg(BH4)2 has been considered as one of the promising light metal complex hydrides due to its high hydrogen capacity and low cost. But its higher thermal stability (dehydrogenation at above 300 °C) needs to be improved for the practical application. In this study, the aluminum hydride AlH3 was introduced into complex borohydride Mg(BH4)2 to synthesize a new Mg(BH4)2/>AlH<sub>3</sub> composite by ball milling method. It is found that the active Al<sup>1</sup> formed from the self-decomposition of AlH<sub>3</sub> can effectively improve the dehydrogenation properties of Mg(BH<sub>4</sub>)<sub>2</sub>, the Mg(BH<sub>4</sub>)<sub>2</sub><img style=
Keywords:Hydrogen storage  Composite
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