Study of hydrogen storage properties of oxygen modified Ti- based AB2 type metal hydride alloy

A multi component AB 2 type hydrogen storage intermetallic alloy (A = Ti 0.85 Zr 0.15 , B Mn 1.22 Ni 0.22 Cr 0.2 V 0.3 Fe 0.06 ; was investigated in this work. The specified above modified by oxygen to yield the composition O 0.05 . introduced adding TiO charge, with corresponding decrease of amount, followed arc melting and annealing at same conditions as for free -type alloy. addition did not change much PCT properties; only difference that plateau pressure oxygen-modified increased slightly. Both alloys have shown be excellent candidates H storage, particularly utility vehicles, due their relatively high reversible capacity (1.6 wt%) low room temperature (<5 bar). improved absorption kinetics allowing it immediately absorb without activation while non-modified sample an incubation period (30 min) observed conditions. • – based AB2 synthesized melting. Modification oxygen. MH wt %). Improvement