This study presents a straightforward, efficient, and cost-effective approach to creating a highly effective catalyst for electrochemical water splitting. The formation of Ni-Co-S coating was carried out by applying current densities of 10, 20, and 50 mA.cm-2, followed by the synthesis of Cosingle bondMn LDH, using the cyclic voltammetry method with sweep rates of 5, 10, 20, 30, and 50 mV.s−1. The results indicate that the most effective electrode exhibits a significant electrocatalytic activity in the hydrogen evolution reaction, with a required overpotential of 24 mV at a current density of 10 mA.cm−2 and a Tafel slope of 55 mV.dec−1. Similarly, it also demonstrates a high electrocatalytic activity in the oxygen evolution reaction, with an overpotential of 310 mV at a current density of 10 mA.cm−2 and a Tafel slope of 48 mV.dec−1. After 10 h of electrolysis at a cathodic current density of 100 mA.cm−2, the overpotential of the Cosingle bondMn LDH @ Ni-Co-S electrode only changed by 4 mV. This demonstrates the exceptional electrochemical durability of this coating in both working conditions and an alkaline environment.

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