【作者】 毛建锋； 余学斌； 吴铸； 窦涛； 陈通进； 翁百成； 倪君； 徐乃欣； 黄铁生；

【Author】 MAO Jian-feng, YU Xue-bin ,WU Zhu, DOU Tao, CHEN Tong-jin, WENG Bai-cheng ,NI Jun, XU Nai-xin, HUANG Tie-sheng (Energy Science and Technology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China)

【机构】 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；

【摘要】 研究了LiBH4对镁吸氢性能的影响,探索出一条不需要活化就能改善镁的储氢性能的途径。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1 h后,产物表现出很好的吸氢活性,在300℃下20 min 内的吸氢量可达到6．5％,在1 h内可达到7．1％;在250℃和200℃下,1 h内的吸氢量分别可达到6．7％和2．6％。而镁在300℃以下几乎不吸氢。更多还原

【Abstract】 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 min 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 .更多还原