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Microstructure, electrochemical performance and gas-phase hydrogen storage property of Zr0.9Ti0.1[(Ni,V,Mn)0.95 Co0.05]α laves phase alloys

Yang, K; Chen, D; Chen, L; Guo, ZX; (2002) Microstructure, electrochemical performance and gas-phase hydrogen storage property of Zr0.9Ti0.1[(Ni,V,Mn)0.95 Co0.05]α laves phase alloys. Journal of Alloys and Compounds , 333 (1-2) pp. 184-189. 10.1016/S0925-8388(01)01724-8.

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Abstract

A series of Zr0.9Ti0.1[(Ni,V,Mn)0.95 Co0.05]α alloys were prepared by vacuum induction melting to investigate the relationship between the composition and the electrochemical performance of AB2 alloys. It was shown that the electrochemical capacity is improved, but the cycle life is reduced, when increasing the content of Mn and decreasing that of Ni in the alloys, keeping the contents of the other elements constant. The electrochemical capacity is increased, but the high-rate capability deteriorated with the increasing level of the V and the decrease of Ni in the alloys. The effects are attributed to the electro-catalyzing effect of Ni, the dissolution of Mn into the alkaline solution and the change of hydrogen affinity resulting from the substitution of V for Ni. © 2002 Elsevier Science B.V. All rights reserved.

Type: Article
Title: Microstructure, electrochemical performance and gas-phase hydrogen storage property of Zr0.9Ti0.1[(Ni,V,Mn)0.95 Co0.05]α laves phase alloys
DOI: 10.1016/S0925-8388(01)01724-8
Keywords: Electrochemical reactions, Electrode materials, Energy storage materials, Gas-solid reactions, Transition metal compounds
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry
URI: http://discovery.ucl.ac.uk/id/eprint/59563
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