Surface wettability engineering of MoS2 quantum dot-decorated NiCo2O4 nanospheres for enhanced oxygen evolution reaction

Modulating MoS₂ quantum dots enhances the hydrophilicity of NiCo₂O₄, accelerates bubble detachment, promotes mass transfer, and consequently enhances catalytic activity. The optimized catalyst achieves a low overpotential of 272 mV at 10 mA cm^-2 and a Tafel slope of 76.3 mV dec^-1 in 1.0 mol L^-1 KOH.