A cobalt–phosphorus nanoparticle decorated N-doped carbon nanosheet array for efficient and durable hydrogen evolution at alkaline pH

In 1.0 M KOH, Co–P@NC/CC, prepared by electrodeposition of cobalt–phosphorus nanoparticles on a polyimide derived N-doped carbon nanosheet array supported on carbon cloth, shows outstanding catalytic activity with the demand of an overpotential of 75 mV to drive 10 mA cm −2 .