High activity, stable, and affordable electrocatalysts for oxygen evolution reaction (OER) to replace precious catalysts, such as IrO 2 and RuO 2 , be a way to renewable energy solutions, containing water-splitting and rechargeable metal-air batteries. Here, we report the impressive electrocatalytic activity for the OER of nanohybrid cerium-doped nickel-cobalt layered double hydroxide ( Ce doped NiCo-LDH ) grown on a scaffold of carbon nanotube (CNT) displayed excellent electrochemical performance in the water oxidation. The structure and morphology of the NiCoCe-LDH/CNT catalyst was analyzed by TEM, FE-SEM, EDS, XRD, FTIR, TGA, BET, and Raman techniques. The prepared electrode at the current density of 10 mA cm ?2 showed overpotential (? ) of 236 mV and the Tafel slope was 56 mV dec -1 in the 1M KOH. NiCoCe-LDH/CNT nanohybrid exhibits more electrocatalytic activity and durability for oxygen evolution than commercial costly metal Ir and Ru catalysts.
