Electrochemical hydrogen storage properties of a non-equilibrium Ti2Ni alloy

被引：14
|
作者：
Zhao, Xiangyu [1 ]
Li, Jiajia [1 ]
Yao, Yan [1 ]
Ma, Liqun [1 ]
Shen, Xiaodong [1 ]
机构：
[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
RSC ADVANCES | 2012年 / 2卷 / 05期
关键词：
ELECTRODE; SYSTEM;
D O I：
10.1039/c2ra00846g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A crystalline Ti2Ni alloy was mechanically milled and subsequently annealed to form a non-equilibrium Ti2Ni alloy. This non-equilibrium structure could restrain the formation of irreversible metal hydride during charging. Consequently, we demonstrated that the alloy had a discharge capacity of 336 mAh g(-1), which was much higher than those of other Ti2Ni alloys reported in the literature and also higher than that of the commercial LaNi5-based alloy. An electrochemical hydrogen absorption-desorption mechanism of the alloy during cycling is also presented.
引用
收藏
页码：2149 / 2153
页数：5
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