Ni, beyond thermodynamic tuning, maintains the catalytic activity of V species in Ni3(VO4)2 doped MgH2

A bimetallic oxide Ni₃(VO₄)₂ has been synthesized to catalyze the hydrogen storage reaction of MgH₂. The formation of the Mg₂Ni alloy and the kinetic modulation of V results in a dehydrogenation temperature of 210 °C. The NiV₂O₄ intermediate active species is also detected.