Flower-Shaped 1T/2H-Phase Molybdenum Disulfide co-doped with Nickel and Iron Grown on Carbon Cloth for Enhanced Water Splitting

The development of an efficient, bifunctional, and affordable catalyst has emerged as a valuable approach for electrocatalysis, as it enhances the charge transfer capability and the number of active sites of the catalyst. Herein, we synthesized a flower-like structure of nickel and iron co-doped molybdenum disulfide on carbon cloth (Ni/Fe-MoS2/CC) using a facile hydrothermal method. The Ni/Fe-MoS2/CC sample exhibited remarkable activity towards the hydrogen evolution reaction, with low overpotentials of -116 mV and a Tafel slope of 43 mV/dec at -10 mA/cm2. It also showed excellent performance in the oxygen evolution reaction with an overpotential of 202 mV and a Tafel slope of 65 mV/dec to afford a current density of +10 mA/cm2 along with high stability. This study illustrates the beneficial effect of Ni and Fe co-doping on the synthesized flower-shaped MoS2 with the formation of 1T phase on MoS2/CC, demonstrating significant potential in the field of electrocatalysis.