SET Proceedings 2978-4387 Caravel Press 10.65582/set.2008.110 2008.110 Structure and hydrogen desorption studies of (Ti0.16Zr0.05Cr0.22V0.57)1-x Mx (M: Cu, Mm) alloys SinghB. K. YooJeong-Hyun ChoSung-Wook cho@kigam.re.kr Minerals & Materials Processing Research Division, Korea Institute of Geoscience & Mineral Resources, Gajeong-dong 30, Yuseong-gu, Daejeon 305-350, South Korea 24082008 7 1 978-1-995850-08-5 838 844 24 August 2008 © 2008 Copyright WSSET 2008

BCC based alloys represent a large and versatile group of hydrogen storage materials. Systematic studies to find out the most appropriate elemental substitution which can turn the material readily activated have been taken. Alloy systems (Ti0.16Zr0.05Cr0.22V0.57)1-xMx, (M: Cu and Mm, x= 0.0 - 0.10) were synthesized by arc-melting in a water-cooled Cu mold in argon atmosphere and investigated for their hydrogen storage behaviour. Phase analysis and structural studies were carried out using powder X-ray diffraction (XRD) and transmission electron microscopy (TEM). These analyses indicate the retention of the parent BCC phase on Cu and Mm addition. Though the alloys have less hydrogen storage than the parent BCC phase, the desoption temperature of residual hydrogen is lowered.

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