Nickel oxide nanosheets array grown on carbon cloth as a high-performance three-dimensional oxygen evolution electrode

In this communication, we demonstrate the development of nickel oxide nanosheets array on carbon cloth (NiO NA/CC) as an integrated three-dimensional oxygen-evolving electrode. The electrode exhibits high catalytic activity with an onset overpotential of 295 mV and a Tafel slope of 116 mV/dec. It needs an overpotential of 422 mV to drive current density of 10 mA/cm2 and maintains its catalytic activity for at least 10 h.