LaNi_5晶体是一个令人很感兴趣的体系.它既是一种最有前途的的储氢材料,又是加氢反应的高活性催化剂.自1970年Van Vacht等首先报导LaNi_5有良好的可逆吸放氢的性质后,化学工作者对LaNi_5-H_2体系进行了广泛的研究.前期的工作主要是 LaNi_5 crystal is an interesting system, it is not only one of the most promising hydrogen storage materials, but also a highly active catalyst for hydrogenation reaction.Firstly, Van Vacht et al reported that LaNi_5 has good reversible absorption and desorption After the nature of hydrogen, chemical workers conducted extensive research on the LaNi_5-H_2 system.The previous work mainly