Hydriding combustion synthesis of Mg₂NiH₄

Hydriding combustion synthesis (HCS) can produce full hydrides of alloys simply and in a short time. The conventional process based on ingot metallurgy (IM) cannot produce magnesium-based alloy easily with the desired composition and the cast product needs a long activation process for the practical use of hydrogen storage. The purpose of this study was to investigate the various hydrogen storage properties of HCSed Mg₂NiH₄ in comparison to the cast Mg₂Ni. The results suggest that the HCSed Mg₂NiH₄ has some advantages over the IM product.