Ag@CoXP Core-Shell Heterogeneous Nanoparticles as Efficient Oxygen Evolution Reaction Catalysts

We present a facile synthetic method that yields Ag@CoxP core-shell-type heterogeneous nanostructures with excellent oxygen evolution reaction (OER) activity. This nanocatalyst can deliver a current density of 10 mA/cm(2) at a small overpotential of 310 mV and exhibits high catalytic stability. Additionally, the catalytic activity of Ag@CoxP is 8 times higher than that of the Co2P nanoparticles, owing primarily to the strong electronic interaction between the Ag core and the CoxP shell.