Improved hydrogen storage capacity of Ti60Zr15Ni15Cu10 amorphous alloy

The hydrogen absorption property of a Ti60Zr15Ni15Cu10 amorphous alloy is p resented. The maximum hydrogen concentration of the amorphous alloy was 1.4 1 H/M at room temperature. The hydrogen absorption at lower temperatures wi th higher H-2 pressures favored higher H/M ratios for the amorphous alloy w ithout any crystalline hydride growth. The structures of the as-quenched an d hydrogenated samples were investigated by X-ray diffraction (XRD) and tra nsmission electron microscopy (TEM). The absorption was accompanied by expa nsion of interatomic spacing in the amorphous structure. The hydrogen stora ge ability of the Ti60Zr15Ni15Cu10 amorphous alloy was found to be better t han that of the related crystalline phase in this system.