Journal
RSC ADVANCES
Volume 2, Issue 5, Pages 2149-2153Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra00846g
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Funding
- Jiangsu Higher Education Institutions of China [11KJB430009]
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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.
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