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氢能是一种新型的清洁能源,有望替代碳经济,而氢的储存是氢能应用的关键。近年来,研究集中在具有储氢容量高和可逆性好等优点的固态储氢材料上。许多新型储氢材料不断出现,其中以MAlH4(M=Li,Na)为代表的金属复合氢化物体系被认为是最有前景的储氢材料之一。本文综述了MAlH4(M=Li,Na)作为可逆储氢材料的研究现状,主要从吸放氢反应、储氢性能、反应机理、理论计算和存在的问题等方面进行讨论,并指出其相关发展趋势。
Hydrogen energy is a new type of clean energy and is expected to replace the carbon economy. Hydrogen storage is the key to the application of hydrogen energy. In recent years, research has focused on solid hydrogen storage materials that have the advantages of high hydrogen storage capacity and good reversibility. Many new hydrogen storage materials are emerging. Among them, the metal complex hydride system represented by MAlH4 (M = Li, Na) is considered as one of the most promising hydrogen storage materials. In this paper, the research status of MAlH4 (M = Li, Na) as a reversible hydrogen storage material is reviewed, mainly from the aspects of hydrogen absorption and desorption, hydrogen storage, reaction mechanism, theoretical calculation and existing problems. trend.