Ti-Zr-V-Cr-Ni固溶体贮氢合金电极的制备和电化学性能  

Ti-Zr-V-Cr-Ni Solid Solution Alloy Electrode: Preparation and Electrochemical Performance

作　　者：柴玉俊[1] 赵敏寿[1] 李志英[2] 张新波[1] 印文雅[1] 

机构地区：[1]中国科学院长春应用化学研究所稀土化学与物理重点实验室,长春130022 [2]中国科学院长春应用化学研究所电分析化学国家重点实验室,长春130022

出　　处：《无机化学学报》2005年第9期1341-1344,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20171042)资助项目

摘　　要：The microstructure and electrochemical properties of Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy were investigated. The alloy was found to be consisted of V-based solid solution phase with bcc structure and C14 Laves phase with hexagonal structure. SEM-FEG results show that C14 Laves phase precipitates between bcc phases. V and Cr essentially exist in bcc phase, Ti and Ni mainly in C14 Laves phase, as proved by EDX data. The electrochemical properties prove that the discharge capacity of Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy electrode decreases slightly with increasing temperature, but it keeps high discharge capacity at 343 K. At the same time, the charge-transfer resistance decreases and the high rate dischargeability increases as temperature increases.The microstructure and electrochemical properties of Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy were investigated. The alloy was found to be consisted of V-based solid solution phase with bcc structure and C14 Laves phase with hexagonal structure. SEM-FEG results show that C14 Laves phase precipitates between bcc phases. V and Cr essentially exist in bcc phase, Ti and Ni mainly in C14 Laves phase, as proved by EDX data. The electrochemical properties prove that the discharge capacity of Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy electrode decreases slightly with increasing temperature, but it keeps high discharge capacity at 343 K. At the same time, the charge-transfer resistance decreases and the high rate dischargeability increases as temperature increases.

关 键 词：贮氢合金 电化学性能 固溶体合金 

分 类 号：O612.4[理学—无机化学] O612.5[理学—化学]