Effects of Zn-addition to C14 metal hydride alloys and comparisons to Si, Fe, Cu, Y, and Mo-additives
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- 作者：K. Younga ; kwo.young@basf.com" class="auth_mail" title="E-mail the corresponding author ; T. Ouchia ; X. Linb ; B. Reichmana
- 关键词：Hydrogen absorbing materials ; Transition metal alloys ; Metal hydride electrode ; Electrochemical reactions ; Low-temperature application
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：655
- 期：Complete
- 页码：50-59
- 全文大小：2978 K
文摘
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Partial replacement of Ni by Zn in AB2 metal hydride alloy was studied.
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With increase in Zn, TiNi phase increases, unit cell expands, and ΔH decreases.
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C15 phase is crucial for the high-rate performance and activation behavior.
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1 at% of Zn can improve the storage capacity, activation, and cycle stability.
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High Zn-content (>1 at%) passivates the surface and impedes high-rate capability.