Performance and fuel cell applications of reacted ball-milled MgH/5.3 wt% TiH nanocomposite powders.

The present study aimed to enhance the kinetics behavior and destabilize the thermal stability of MgH powder by high-energy milling of Mg powder under 50 bar of H for several hours using Ti-balls as the milling media. The results showed a monotonical increase in Ti content worn off the milling media and introduced into the milled powders. This gradual doping led to homogeneous distribution of fine Ti particles into the Mg/MgH powder matrix without agglomeration or compositional fluctuations at the micro-level.