In situ preparation of nanocrystalline Ni@C and its effect on hydrogen storage properties of MgH2

By a facile self-template strategy, nanocrystalline Ni@C assembled by a number of nanoparticles with a diameter of about 200-400 nm is successfully synthesized. In situ synthesized Ni@C exhibits much enhanced catalytic activity for dehydrogenation performance of MgH2.