Isotope effect on structural transitions of Ti1.0Mn0.9V1.1HX(DX) and Ti1.0Cr1.5V1.7HX(DX) with hydrogenation

Effect of misch-metal substitution on structure and hydrogen desorption characteristics of Ti0.16Zr0.05Cr0.22V0.57 alloy

“…i) The Misch-metal is constituted by heavier elements than Ti, Zr, Cr, and V. The hydrogen storage capacity of the Mm substituted alloy decreases due to the high weight fraction of Mm in the composition. ii) It is reported that during hydrogenation, the BCC phase expands initially and then the structural transition from BCC to FCC occurs [23]. In the present investigation, Mm addition caused the formation of several secondary phases, as mentioned above.…”

Hydrogen absorption–desorption characteristics of Ti(0.22+X)Cr(0.28+1.5X)V(0.5−2.5X) (0≤X≤0.12) alloys

“…4 clearly shows the gradual structural changes of the Ti 0.24 Cr 0.36 V 0.4 alloy with the progress of the hydrogenation reaction. As hydrogenation progresses, the bcc phase expands first and then the structural transition from bcc to fcc occurs [8]. Therefore, it can be said from Figs.…”

“…It is of fundamental importance to know the structural transitions associated with hydrogenation and dehydrogenation not only to understand the reason why a part of hydrogen is not desorbed even at low pressure but also to foresee the cycling characteristics. One of the present authors has reported on the hydrogen storage characteristics of Ti Cr V alloys [7] and the structural transitions associated with hydrogenation [8].…”

Effects of desorption temperature and substitution of Fe for Cr on the hydrogen storage properties of Ti0.32Cr0.43V0.25Ti0.32Cr0.43V0.25 alloy

“…Of the various materials under consideration, some of bcc solid solution alloys look more promising than others. Since the pioneering work of Libowitz et al [1][2][3], many researchers have studied and improved the bcc solid solution alloys for hydrogen storage [4][5][6][7][8][9]. They show excellent volumetric hydrogen storage density and high reactivity with hydrogen at reasonably low temperature.…”