Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 372, Issue 1-2, Pages 272-277Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2003.09.153
Keywords
hydrogen storage; Ti-V-based alloys; microstructure; hydrogen sorption characteristics
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The phase structures and hydrogen absorption-desorption properties of Ti-V-Cr-Mn alloys were investigated. It is found that the increasing V content is effective for enhancing the hydrogen absorption capacity and flattening the hydrogen desorption plateau, while it depresses the hydrogen desorption plateau pressure. With the increase of V content, two phases of BCC and C14 Laves of the alloys transform into a single BCC phase. The maximum and effective hydrogen storage capacities among studied alloys are 3.98 and 2.51 wt.%, respectively, which open the hope to bring Ti-V-based alloy into the reach of practical application for onboard hydrogen storage systems in fuel cell powered vehicles. (C) 2003 Elsevier B.V. All rights reserved.
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