在对LaNi5晶体结构进行分析之后,认为一个晶胞是由3个十二面体,9个八面体,6个六面体和36个四面体所组成.四面体间隙太小,不能储存氢原子.这样,一个晶胞内可以储存18个氢原子,氢原子与金属原子比为H/M=1.LaNi5最大储氢量为1.379%.
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