合金FeTi_(1.2)+xwt%LaNi_5(x=0,1,2,3,4)储氢性能的研究  

Study on hydrogen storage performance of FeTi_(1.2)+xwt%LaNi_5(x=0,1,2,3,4) alloys

作　　者：向玉双[1] 杜立新[1] 叶辉[1] 黄铁生[1] 徐乃欣[1] 邬君飞[2] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050 [2]宝钢仪器分析测试中心,上海201900

出　　处：《功能材料与器件学报》2002年第2期175-178,共4页Journal of Functional Materials and Devices

摘　　要：采用合金化的方法向富钛储氢合金FeTi1.2中添加少量LaNi5以形成四元系合金FeTi1.2+xwt%LaNi5来改善FeTi1.2合金的储氢性能。虽然XRD没有检出合金中有LaNi5相的存在,但是FeTi1.2合金的储氢性能特别是活化性能得到了改善,FeTi1.2+xwt%LaNi5合金还具有较高的储氢量,293K吸氢的FeTi1.2+2wt%LaNi5合金在333K时的放氢量为186.4ml/g,明显超过FeTi1.2合金的172.3ml/g。A small amount of LaNi 5 was added to improve the hydrogen sto rage performance of FeTi 1.2 .No LaNi 5 phase was detected in the alloys by XRD,but the hydrogen storage capabilities of FeTi 1.2 ,especially activation characteris tic,are greatly improved and the alloys have higher hydrogen storage capacity.The desorption capacity o f FeTi 1.2 +2wt%LaNi 5 is 186.4ml /g at 333K,which is greate r than 172.3ml /g for FeTi 1.2 .

关 键 词：FeTi1.2合金 储氢性能 活化 贮氢合金 

分 类 号：TG139.7[一般工业技术—材料科学与工程]