An efficient multifunctional hybrid electrocatalyst: NiP nanoparticles on MOF-derived Co,N-doped porous carbon polyhedrons for oxygen reduction and water splitting.

Ni2P nanoparticles anchored on MOF-derived Co,N-doped porous carbon polyhedrons (Ni2P/CoN-PCP) were successfully prepared. The Ni2P/CoN-PCP catalyst shows excellent trifunctional electrocatalytic performances for the oxygen reduction, oxygen evolution, and hydrogen evolution reactions, attributed to the synergistic effect between active Ni2P nanoparticles and the CoN-PCP support with rich Co-Nx centres, abundant defects and high conductivity. This work demonstrates a superior low-cost electrocatalyst for potential application in fuel cells and water splitting devices.