Hydrogen storage behavior of nanocrystalline and amorphous Mg-Ni-Cu-La alloys.

Alloying and structural modification are two effective ways to enhance the hydrogen storage kinetics and decrease the thermal stability of Mg and Mg-based alloys. In order to enhance the characteristics of MgNi-type alloys, Cu and La were added to an MgNi-type alloy, and the sample alloys (MgNiCu) La ( = 0, 5, 10, 15, 20) were prepared by melt spinning. The influences of La content and spinning rate on the gaseous and electrochemical hydrogen storage properties of the sample alloys were explored in detail.