In situ confinement of ultrahigh-density Co2P nanoparticles within biomass-derived carbon nanosheet frameworks as efficient cocatalysts for solar H2 production

An efficient and versatile H 2 evolution cocatalyst is developed by embedding ultrahigh-density Co 2 P nanoparticles within biomass-derived carbon nanosheets, exhibiting high activity and stability in both the dye-sensitized and semiconductor systems.