Effects of RMG conditions on the hydrogen sorption properties of Mg + Cr2O3 mixtures

Hydrogen sorption properties of Mg + 5 wt.%Cr2O3 mixtures are examined. Increasing the milling injected power enhances the hydriding rates. The higher sorption rates (1.32 × 10−2 wt.%/s at 300 °C for desorption) are obtained for planetary ball mill, high rotation speed and high number of ball. A relationship between crystallinity, morphology and sorption properties was observed.