Phase structures and electrochemical properties of the Laves phase hydrogen storage alloys Zr1-xTix(Ni0.6Mn0.3V0.1 Cr0.05)2

被引：26

作者：

Du, YL

Yang, XG

Zhang, QA

Lei, YQ

Zhang, MS ^{[1
]}

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2001年 / 26卷 / 04期

关键词：

D O I：

10.1016/S0360-3199(00)00112-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of the partial substitution of Ti for Zr in Zr1-x Ti-x(Ni-0.6 Mn-0.3 V-0.1 CR0.05)(2) alloys are reported in this paper. The main phases C15 and C14 Laves phases, and secondary phase Zr7Ni10 were found. With increasing Ti content, abundance of C15 phase decreases and that of C14 phase increases. Increase of Ti content leads to decrease of the lattice parameters of both C15 and C14 phases. Pressure-composition isotherms show a decrease of the stability of the alloy hydride. Ti substitution for Zr in the alloys is effective to improve the activation and high-rate dischargeability. A critical substitution content of Ti is found at x = 0.2. The cycling stability and the high rate dischargeability are deteriorated for the alloy electrodes with high Ti content (x > 0.3). (C) 2001 International Association for Hydrogen Energy. Published by Elsevier science Ltd. All rights reserved.

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页码：333 / 337

页数：5

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