Defect engineering and self-reconstruction directed stabilization of steady-state NiOOH on NiOx for durable oxygen evolution
Abstract
Cobalt and iron elements were incorporated into the defect-rich surface layer of NiOx, enabling dynamic reconstruction during the oxygen evolution reaction, which achieved a low overpotential of 280 mV at 10 mA cm-2 and maintained stable operation for 900 hours—18 times longer than that of the defect-rich NiOx.
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