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New Hydrides of Zr-Based Intermetallic Compounds

Published online by Cambridge University Press:  16 February 2011

I. Y. Zavaliy
I. Y. Zavaliy*
Affiliation:
Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5 Naukova Str., Lviv, 290601, Ukraine
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Abstract

The promising hydrogenation properties of oxygen-stabilised qr-phases with filled-Ti2Ni structure type in Zr-M-O systems (M - V, Cr, Mn, Fe, Co, Ni) are shown in this work. Hydrogenation capacity of the representative examples of compounds with 1:1 and 2:1 metal/metal ratio – Zr3V3O and Zr4Fe2Ox – are presented on the dependence of oxygen content in order to discuss its influence on the hydrogen storage capacity of Zr-based η-phases. The hydrogen disproportionation of η-Zr4Fe2Ox as well as oxygenless pseudobinary (Zr0.6Hf0.4)2Fe compounds with the same structure was studied. The reducing of metal matrix stability with the decrease of oxygen content is shown and explained by the increase of the total energy of crystal lattice.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 547: Symposium DD – Solid-State Chemistry of Inorganic Materials II , 1998 , 469
Copyright
Copyright © Materials Research Society 1999

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