In situ growth of MOF-derived ultrafine molybdenum carbide nanoparticles supported on Ni foam as efficient hydrogen-evolution electrocatalysts

The in situ growth of Mo-containing MOFs on nickel foam was achieved through the conversion of CoMo hydroxide/oxide nanosheets. After pyrolysis, ultrafine Mo_xC nanoparticles were encapsulated in carbon with sufficient active sites and protection.