【摘要】 本文用置换-扩散法合成了储氢材料Mg₂Ni.它是在二甲基甲酰胺中,用金属镁锉屑去置换溶液中化合态的镍（NiCl₂）,使镍接镀在镁上.然后在温度500—580℃、氩气氛下扩散2-3小时.所得的Mg₂Ni有较好的物理和化学性能,特别是氢化物分解温度有明显的降低.更多还原

【Abstract】 In this paper a chemical method for the synthesis of hydrogen-storing alloy Mg2Ni is presented, and powdered magnesium was used in excess to displace nickel in DMF so that Ni was deposited on Mg by stoichiometric amount. The Ni-coate Mg powder was heated at 550-580℃ for homogeneity of the alloy. The alloy thus prepared has excellent surface properties compared with that of the alloy prepared metallurigically, i.e, it has larger specific surface area, ease of activation, higher rates and lower temperatures for hydrogen absorption and desorption.更多还原