配位氢化物储氢材料Mg（BH4）2的研究进展

摘要

Mg（BH4）2是一种新型配位氢化物储氢材料,因具有较高的质量储氢密度（14.8wt.%）和体积储氢密度（112g/L）而备受关注。本文系统概述了近年来有关Mg（BH4）2的诸多研究成果,主要包括Mg（BH4）2合成,晶体结构解析及其储氢性能的表征研究。在这些研究基础上,对该材料在储氢应用中可能涉及的动力学及热力学问题进行分析,同时预测该体系未来的研究方向和发展趋势。%Magnesium borohydride Mg（BH4）2,having gravimetric and volumetric hydrogen densities of 14.9 wt.% and 112g/L,respectively,is considered as one of the most promising materials for hydrogen storage.Extensive investigations have been paid on this complex hydride in the past few years.We summarized research progresses on the synthesis,crystal structure and hydrogen storage performance of Mg（BH4）2 in this paper.Pending issues,such as kinetic barrier and reversibility of hydrogen storage in Mg（BH4）2,were discussed,and further development of this storage material was suggested.