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本文以轻金属镁的吸、放氢反应为基础,讨论氢化镁的制备和热稳定性:研究了化学法合成Mg_2Ni及其对金属镁吸氢的催化作用.研究结果表明化学法合成的Mg_2Ni对Mg吸氢有很高的催化活性,甚至在金属镁中渗入1%摩尔左右的Mg_2Ni就能大大改善镁的吸氢性能.本文还客观地比较了化学法和高温熔炼法两种方法制得的Mg_2Ni在实用上的优缺点.并指出了Mg和MgNi作为储氢材料的客观可能性及发展前途.
In this paper, based on the absorption and desorption reaction of light metal magnesium, the preparation and thermal stability of magnesium hydride were discussed: The catalytic effect of Mg_2Ni on the hydrogenation of magnesium metal was studied. The results show that Mg_2Ni, Hydrogen absorption has a high catalytic activity, even in the metal magnesium infiltration of about 1% by mole of Mg_2Ni can greatly improve the hydrogen absorption properties of magnesium.This article also objectively compared the two methods of chemical and high temperature melting of Mg_2Ni In the practical advantages and disadvantages.It also points out the objective possibility and the future of Mg and MgNi as hydrogen storage materials.