CoP2 nanoparticles on reduced graphene oxide sheets as a super-efficient bifunctional electrocatalyst for full water splitting

Abstract

In this communication, we report an electrocatalyst for full water splitting based on CoP₂ nanoparticles grown on reduced graphene oxide sheets (CoP₂/RGO). As a novel non-noble-metal electrocatalyst, CoP₂/RGO shows an ultra-high catalytic activity in alkaline electrolyte which only requires a cell voltage of 1.56 V to attain a current density of 10 mA cm⁻² for full water splitting.