Hydriding properties of Ti-substituted non-stoichiometric AB2 alloys
作者： M. Kandavel , S. Ramaprabhu
DOI: 10.1016/J.JALLCOM.2004.03.081
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摘要: Abstract Stoichiometric Ti 0.1 Zr 0.9 Mn V Fe 0.5 Co and non-stoichiometry (Ti ) 1.1 0.5, (Mn 0.55 alloys have been synthesized the lattice constants unit cell volume obtained by using powder X-ray diffractograms. Pressure-composition (PC) isotherms in temperature pressure ranges 30–125 °C 0.1–30 bar reduction method effect of on hydrogen absorption properties studied. Maximum storage capacity is around 3.4 atoms per formula at 30 bar 30 °C . The relative partial molar enthalpy (Δ H entropy S dissolved calculated from PC their variation with concentration has plotted to identify existence different phases. diffraction patterns –H x ( =1.6 3.2) order study hydrogenation crystal structure. activation energy diffusion coefficient kinetics measurements temperatures compared Ni 50 °C studied discussed.
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