期刊
RENEWABLE ENERGY
卷 33, 期 2, 页码 193-196出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2007.05.004
关键词
hydrogen absorbing materials; thermodynamic properties; thermal analysis
Magnesium borohydride (Mg(BH4)(2)) is a promising material for hydrogen storage because of its high gravimetric storage density (15.0 mass%). We intended to synthesize Mg(BH4)(2) by decomposition reaction of LiBH4 with MgCl2 by heat treatment without using a solvent, where the product consists of LiCl and a compound of magnesium, boron and hydrogen. Hydrogen desorption temperature of the product is approximately 100 K lower than that of LiBH4 and the decomposition consists of a two-step reaction. The products of the 1st and 2nd decomposition reactions are MgH2 and Mg, respectively. This result indicates the following two-step reaction (1st reaction: Mg(BH4)(2) --> MgH2 + 2B + 3H(2), 2nd reaction: MgH2 --> Mg + H-2). The first decomposition peak is dominant and is around 563 K. The 2nd decomposition occurs at the temperature greater than 590 K. (C) 2007 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据