Electrochemical hydrogen storage properties of a non-equilibrium Ti 2Ni alloy

Xiangyu Zhao; Jiajia Li; Yan Yao; Liqun Ma; Xiaodong Shen

doi:10.1039/c2ra00846g

Electrochemical hydrogen storage properties of a non-equilibrium Ti ₂Ni alloy

Xiangyu Zhao, Jiajia Li, Yan Yao, Liqun Ma, Xiaodong Shen

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A crystalline Ti ₂Ni alloy was mechanically milled and subsequently annealed to form a non-equilibrium Ti ₂Ni 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 Ti ₂Ni alloys reported in the literature and also higher than that of the commercial LaNi ₅-based alloy. An electrochemical hydrogen absorption-desorption mechanism of the alloy during cycling is also presented.

Original language	English
Pages (from-to)	2149-2153
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	5
DOIs	https://doi.org/10.1039/c2ra00846g
State	Published - 7 Mar 2012

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abstract = "A crystalline Ti 2Ni alloy was mechanically milled and subsequently annealed to form a non-equilibrium Ti 2Ni 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 Ti 2Ni alloys reported in the literature and also higher than that of the commercial LaNi 5-based alloy. An electrochemical hydrogen absorption-desorption mechanism of the alloy during cycling is also presented.",

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AU - Zhao, Xiangyu

AU - Li, Jiajia

AU - Yao, Yan

AU - Ma, Liqun

AU - Shen, Xiaodong

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N2 - A crystalline Ti 2Ni alloy was mechanically milled and subsequently annealed to form a non-equilibrium Ti 2Ni 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 Ti 2Ni alloys reported in the literature and also higher than that of the commercial LaNi 5-based alloy. An electrochemical hydrogen absorption-desorption mechanism of the alloy during cycling is also presented.

AB - A crystalline Ti 2Ni alloy was mechanically milled and subsequently annealed to form a non-equilibrium Ti 2Ni 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 Ti 2Ni alloys reported in the literature and also higher than that of the commercial LaNi 5-based alloy. An electrochemical hydrogen absorption-desorption mechanism of the alloy during cycling is also presented.

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Electrochemical hydrogen storage properties of a non-equilibrium Ti ₂Ni alloy

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