摘要
在氢气保护下,通过机械合金化制备2LiNH_2/MgH_2+5%M(M=0,AlCl_3,MgCl_2,TiCl_3)复合材料,研究添加金属卤化物对2LiNH_2/MgH_2复合材料相结构及储氢性能的影响。结果表明,复合材料的相结构主要由MgH_2和LiNH_2组成,且添加MgCl_2和TiCl_3后复合材料的粒度相对较小;2LiNH_2/MgH_2复合材料在添加金属卤化物后表观活化能增大,但在相同的温度下吸氢速率明显增大,并在升温速率为8K/min时添加这些金属卤化物后都能使复合材料的氢化反应温度降低。
2LiNH_2/MgH_2＋5% M（M =0,AlCl_3,MgCl_2,TiCl_3）composite materials were prepared by mechanical alloying under hydrogen gas atmosphere.The effects of metal halide additions on phase structures and hydrogen storage properties of 2LiNH_2/MgH_2 composite were investigated.The results show that main phase structure of 2LiNH_2/MgH_2 composite includes MgH_2 and LiNH_2.Particle size of composite with addition of MgCl_2 and TiCl_3 is relatively small.Apparent activation energy of 2LiNH_2/MgH_2 composite rises after adding metal halide M（M=AlCl_3,MgCl_2,TiCl_3）,but hydrogen absorption rate rises obviously under the same temperature.Hydrogenation reaction temperature of composite drops at heating rate of 8K/min after addition of metal halide.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2016年第4期58-62,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
广西教育厅科研基金项目(2013YB249)
作者简介
黄显吞（1969-），男，广西靖西人，硕士，副教授．
