In situ grown Co3O4 nanocubes on N-doped graphene as a synergistic hybrid for applications in nickel metal hydride batteries

In this work, a novel strategy has been proposed to fabricate a hybrid of Co3O4 nanocubes/N-doped graphene/hydrogen storage alloys, which shows an ultra-high capacity of 223.1 mAh g−1 at a specific current of 3000 mA g−1, the highest datum among reported results for AB5-type hydrogen storage alloys.341