Effect of Ti/Cr on hydrogen absorption/desorption properties of(VFe)₅₀Ti_26-xCr_24+x(0≤x≤2.0)hydrogen storage alloys

In order to study the law of Ti/Cr on absorption/desorption properties of(VFe)₅₀Ti_26-xCr_24+x(0≤x≤2.0)hydrogen storage alloys, Low cost hydrogen storage alloys were prepared by FeV₈₀ and their microstructures and hydrogen absorption/desorption properties were studied systematically. The experimental results show that hydrogen absorption/desorption capacity decrease with Ti/Cr ratio drops(x increases), but the hydrogen desorption plateau pressure of the alloys with lower Ti/Cr ratio increases. All the alloys are composed of BCC and CeO₂ phases, lattice constant of BCC phases decrease as Ti/Cr ratio drops.