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在研究了ＬａＮｉ５－ｘＭｘ合金氢化物（Ｍ＝Ｃｒ，Ｍｎ，Ｆｅ，Ｃｏ，Ｎｉ，Ｃｕ，Ａｌ，Ｇａ，Ｇｅ和Ｓｉ）生成焓、吸氢量与组成、键参数之间的关系的基础上，建立了生成焓与吸氢量的数学模型，给出了影响生成焓、平衡氢压及吸氢量的主要因素及其影响程度的大小．结果表明：在所研究的合金体系中，元素的电子浓度、原子尺寸越小，电负性差越大，合金的氢化生成焓越小，合金氢化物越稳定；元素电负性差、原子尺寸、电子浓度等越小，电荷－半径比越大，温度越低，吸氢量越大．
Based on the study of the relationship between the enthalpy of formation, the amount of hydrogen absorbed, the composition and bond parameters of LaNi5-xMx alloy hydrides (M = Cr, Mn, Fe, Co, Ni, Cu, Al, Ga, Ge and Si) , A mathematical model of enthalpy and hydrogen absorption was established. The main factors affecting the enthalpy of formation, the equilibrium hydrogen pressure and the amount of hydrogen absorbed were given, and their influence degree was also given. The results show that the smaller the electron concentration, the smaller the atom size and the larger the electronegativity, the smaller the hydrogenation enthalpy of the alloy and the more stable the hydride of the alloy. The worse the electronegativity, the smaller the electron size, The smaller the concentration is, the larger the charge-radius ratio is and the lower the temperature is, the larger the hydrogen absorption amount is.