Hydrogen storage properties of amorphous and nanocrystalline Zr-Ni-V alloys

Hydrogen storage properties, such as hydrogen absorbency, hydriding-dehydriding kinetics, P-C-T characteristics and thermal spectra, were studied for amorphous, nanocrystalline and as-east crystalline phases of Zr-Ni-V alloys near the equiatomic composition. The nanocrystalline, alloys were obtained from melt-spun amorphous ribbons by crystallizing at moderate temperatures. Their structures were examined by X-ray diffraction and transmission electron microscopy. The hydrogen storage properties of the nanocrystalline alloys were in general superior to the corresponding amorphous alloys but inferior to the as-east alloys particularly in the dehydriding properties as revealed by thermal desorption spectra. (C) 2002 Elsevier Science B.V. All rights reserved.