INFLUENCE OF OXYGEN ON HYDROGEN STORAGE AND ELECTRODE PROPERTIES FOR MICRO-DESIGNED V-BASED BATTERY ALLOYS

Authors
TSUKAHARA M TAKAHASHI K ISOMURA A SAKAI T
Citation
M. Tsukahara et al., INFLUENCE OF OXYGEN ON HYDROGEN STORAGE AND ELECTRODE PROPERTIES FOR MICRO-DESIGNED V-BASED BATTERY ALLOYS, Journal of alloys and compounds, 265(1-2), 1998, pp. 257-263
Citations number
15
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
265
Issue
1-2
Year of publication
1998
Pages
257 - 263
Database
ISI
SICI code
0925-8388(1998)265:1-2<257:IOOOHS>2.0.ZU;2-M
Abstract
The influence of oxygen on micro-structure, hydrogen storage and elect rode properties were investigated for the alloy V3TiNi0.56Co0.14Nb0.04 7Ta0.047. Since titanium in the alloy worked as a deoxidizer to form t he oxide phase, the alloy preserved a large hydrogen capacity in the o xygen concentration range below 5000 mass ppm. More oxygen than 6000 m ass ppm caused a remarkable contraction of the unit cell of the vanadi um-based main phase and then a decrease in the hydrogen storage capaci ty. The contraction was accompanied by the precipitation of the Ti-bas ed oxide phase. (C) 1998 Elsevier Science S.A.