In Situ Construction of a Co₂P/CoP Heterojunction Embedded on N-Doped Carbon as an Efficient Electrocatalyst for a Hydrogen Evolution Reaction.

ABSTRACT: Noble metal-free electrocatalysts have received widespread attention in a hydrogen evolution reaction (HER) due to the importance of renewable energy development. Herein, a Co₂P/CoP heterojunction embedded on an N-doped carbon (Co₂P/CoP/NC) electrocatalyst was prepared via an in situ pyrolysis method. The as-prepared electrocatalyst exhibited efficient electrocatalytic activity for HER in an acidic solution. The Co₂P/CoP/NC catalyst displayed an overpotential of 184 mV at 10 mA cm^-2 and a low Tafel slope of 82 mV dec^-1, which could be attributed to the tight Co₂P/CoP heterojunction and the synergetic effect of Co₂P/CoP and N-doped carbon. In addition, the electrochemical active surface area of Co₂P/CoP/

SUBMITTER: Lei Y 

PROVIDER: S-EPMC10780241 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature