Electrochemical hydrogen charge/discharge measurements of the as-milled alloys were carried out under galvanostatic conditions. It was found that with increased milling time the discharge capacity increased and reached a value of 230 mAh g−1 for the 30 h milled sample, which is a substantially higher value than those published for this alloy composition. The cycle life of the alloy with the finest nanostructure is, however, shorter compared to the coarser nanostructures.
