Zr_(0.9)Ti_(0.1)V_2合金循环吸放氢稳定性  

Hydrogenation/Dehydrogenation Stability of Zr_(0.9)Ti_(0.1)V_2 Alloy

作　　者：杨晓伟[1] 张铁邦[1] 寇宏超[1] 胡锐[1] 薛祥义[1] 李金山[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《稀有金属材料与工程》2011年第1期32-35,共4页Rare Metal Materials and Engineering

基　　金：西北工业大学凝固技术国家重点实验室自主研究课题(38-TP-2009)

摘　　要：研究了Zr0.9Ti0.1V2合金的循环吸放氢性能。合金在吸氢P-C-T曲线的特征区域内具有良好的循环吸氢稳定性,在P-C-T曲线的吸氢平台区（H/A为0.5左右）、吸氢形成氢化物初始阶段（H/A为1~1.2）、吸氢形成氢化物中间阶段（H/A为1.4左右）吸放氢循环测试中,每组循环内合金的吸氢量差别非常小,循环吸氢稳定性很好。经过70次吸氢循环后,合金的吸氢量可以恢复到1.957（H/A）,合金的粉碎程度很低,表明合金具有良好的循环吸氢能力。The hydrogenation/dehydrogenation processes of Zr0.9Ti0.1V2 hydrogen storage alloy were investigated by cyclic hydriding-dehydriding tests. Reversible hydrogen absorption properties were studied in three characteristic domains on P-C-T curves. Hydrogen contents is similar during each cyclic hydriding-dehydriding test including the hydrogen absorption plateau stage （0.5 H/A）, the initial stage of the hydride formation （1-1.2 H/A） and the mid stage of the hydride formation （1.4 H/A）. After 70 hydrogenation/dehydrogenation cycles, the regeneration hydrogen absorption capacities could reach to as large as 1.957 （H/A）. The experimental Zr0.9Ti0.1V2 alloy exhibits excellent cyclic hydrogenation properties.

关 键 词：P-C-T曲线 循环吸氢 吸氢动力学 再生 

分 类 号：TG139.7[一般工业技术—材料科学与工程]