Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 35, Issue 15, Pages 8130-8135Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.01.017
Keywords
Hydrogen storage; BCC alloy; Cyclic durability; Absorption-desorption property
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Hydrogen storage and cyclic properties of V60Ti(21.4+x)Cr(6.6-x)Fe12 (0 <= x <= 3) alloys were investigated systematically. All alloys were composed of single BCC phase and exhibited good activation performance. V60Ti22.4Cr5.6Fe12 showed the highest desorption capacity of 2.12 wt% with the plateau pressure of 0.061 MPa. In the absorption-desorption cycle tests, both the hydrogen desorption capacity and the micro-strain of V60Ti22.4Cr5.6Fe12 alloy showed exponential relationship with the increase of cycle numbers, which indicated that the micro-strain induced and thereafter accumulated during the absorption-desorption cycles might lead to the decrease of the desorption capacity. (c) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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