High-performance water oxidation electrocatalysis enabled by a Ni-MOF nanosheet array

An Ni-MOF nanosheet array on Ni foam (Ni-MOF/NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, needing an overpotential of 320 mV to drive 100 mA cm⁻².