期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 6, 页码 5050-5055出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.12.010
关键词
Hydrogen storage; Ti-Zr-Ni; Elemental substitution; Discharge properties
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions of China
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [11KJB430009]
Elemental substitution of part Ti by Zr has been carried out for Ti2Ni alloy to form Ti2-xZrxNi (x = 0, 0.2, 0.4) alloys. Mechanical milling and subsequent heat treatment have been used to prepare non-equilibrium Ti-Zr-Ni alloys. The effects of Zr addition on the structure and discharge properties of Ti2Ni alloy were investigated. The addition of Zr could enhance the discharge capacity of the non-equilibrium Ti2Ni alloy at electrolyte temperatures of 313 and 333 K. For instance, the non-equlibrium Ti1.6Zr0.4Ni alloy had a stable discharge capacity of about 210 mAh/g at 313 K. However, the protective surface layer formed during heat treatment was destroyed at a high electrolyte temperature of 333 K, and thus a severe capacity loss during cycling. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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