A Zn-doped Ni3S2nanosheet array as a high-performance electrochemical water oxidation catalyst in alkaline solution

A Zn-doped Ni₃S₂nanosheet array on Ni foam (Zn-Ni₃S₂/NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, driving a catalytic current density of 100 mA cm⁻²at an overpotential of 330 mV, 90 mV less than that for Ni₃S₂/NF.