In situ construction of dual-functional Ni/Ni x B catalysts for the hydrogenation and dehydrogenation of magnesium hydride

The nickel atoms were introduced into the porous h-BN matrix through Ni–B bonds; this Ni/Ni x B@MgH 2 exhibits an capacity of about 7.0 wt% at 200 °C, releasing H 2 of approximately 4.5 wt% H 2 within 10 min, with stable reversible cycling.