Zr替代Ti对Ti_(19.5)V_(40)Mn_(16.2)Cr_(9.8)Ni_(14.5)合金的影响Ⅱ:电化学性能  

Effect of Zr Substitution for Ti on Ti_(19.5)V_(40)Mn_(16.2)Cr_(9.8)Ni_(14.5) Alloy Ⅱ: Electrochemical Properties

作　　者：冯尚龙[1] 吴铸[2] 余学斌[2] 陈朝阳[1] 陈开路[1] 陈彤[1] 李巨峰[3] 

机构地区：[1]福建电力试验研究院,福建福州350007 [2]中科院上海微系统与信息技术研究所,上海200050 [3]河北电力研究院,河北石家庄050021

出　　处：《稀有金属材料与工程》2007年第7期1224-1228,共5页Rare Metal Materials and Engineering

基　　金：国家"863"计划资助项目(2003AA515022)

摘　　要：在对合金微观结构和储氢性能研究的基础上,详细考察了少量Zr取代Ti对Ti19.5V40Mn16.2Cr9.8Ni14.5合金电化学性能的影响。通过观察电极的充放电行为,并结合EIS及多种极化曲线的分析结果,发现少量Zr对Ti的取代能够显著提高合金电极的实际电化学容量和循环稳定性,而且还能在一定程度上改善合金的电极动力学性能。对于这些性能的改善,从合金微观结构方面进行了解释。As the second part, the effects of Zr substitution for Ti on Ti19.5V40Mn16.2Cr9.8Ni14.5 alloy are reported in this paper. It＇s found by EIS, polarization curves and so on that both electrochemical capacity and cycle durability of the alloy electrodes have been greatly improved after appropriate Zr substitution for Ti. And the electrochemical dynamic has also been improved in some degree. All these changes in electrochemical properties have been discussed related to the changes in crystal structures as reported in the first part.

关 键 词：Ti-V基固溶体 储氢合金 电化学性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程]