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Hydrogen absorption and electrode properties of Zr1-xTixV1.2Cr0.3Ni1.5 Laves phases

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Dan Lupu, Alexandru Sorin Biriş, Alexandru Radu Biriş, Ioan Mişan, Emil Indrea

Editorial: ELSEVIER, Journal of Alloys and Compounds, 312(1-2), p.302-, 2000.


Substitution of titanium for zirconium in Zr1-xTixV1.2Cr0.3Ni1.5 (x=0.25; 0.4; 0.6) results in the C15 cubic phase as the main component, the lattice parameter decreasing with increasing Ti content. The desorption isotherms show sloping plateaux and the dehydriding enthalpy decreases with the increasing x. The discharge capacity of the hydride electrode shows remarkable constancy up to 200 cycles for Zr0.4Ti0.6V1.2Cr0.3Ni1.5 (238 mAh g−1).

Cuvinte cheie: Substitution of titanium for zirconium in C15 cubic phase , lattice parameter , desorption isotherms , hydride electrode