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

Jean-Louis Bobet (1) , F. J. Castro (2) , Bernard Chevalier (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 Centro Atómico Bariloche [Argentine]

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

Mots clés: Hydrogen storage; Sorption properties; Mg+; Cr2O3

Domaines: Matériaux

Jean-Louis Bobet, F. J. Castro, Bernard Chevalier. Effects of RMG conditions on the hydrogen sorption properties of Mg+Cr2O3 mixtures. Scripta Materialia, 2005, 52 (1), pp.33-37. ⟨10.1016/j.scriptamat.2004.09.001⟩. ⟨hal-00022172⟩