LiBH4改善镁吸氢性能的研究  

Effects of LiBH4 on Hydrogen Absorption Performance of Mg

作　　者：毛建锋[1,2] 余学斌[1] 吴铸[1] 窦涛[1,2] 陈通进[1,2] 翁百成[1] 倪君[1] 徐乃欣[1] 黄铁生[1] 

机构地区：[1]中国科学院上海微系统与信息技术研究所能源科学与技术研究室,上海200050 [2]中国科学院研究生院,北京100049

出　　处：《武汉理工大学学报》2006年第E02期343-345,共3页Journal of Wuhan University of Technology

基　　金：上海市青年科技启明星计划（05QMX1463）.

摘　　要：研究了LiBH4对钱吸氢性能的影响，探索出一条不需要活化就能改善钱的储氢性能的途径。实验结果显示，在氩气气氛下球磨质量比为1：4的LiBH4-Mg混合物1h后，产物表现出很好的吸氢活性，在300℃下20min内的吸氢量可达到6．5％，在1h内可达到7.1％；在250℃和200℃下，1h内的吸氢量分别可达到6．7％和2．6％。而钱在300℃以下几乎不吸氢。The effects of LiBH4 on the hydrogen absorption performance of magnesium were investigated. A mixture of Mg-LiBH4 with a mass ratio of 4 ： 1 was prepared by mechanical milling for 1 h in argon gas. Experimental results show the mixture sample without activation exhibits a very fast kinetics compared with pure magnesium powder, Storage capacities of 7.1% and 6.7 % hydrogen for the Mg-LiBH4 composite were achieved in 60 rain at 300℃ and 250℃ respectively. It is suggested that LiBH4 may play an important role in the hydrogen storage process of magnesium for kinetic enhancement.

关 键 词：储氢材料 钱 LiBH4 吸氢性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程]