The oxygen evolution reaction (OER) is a critical half-cell reaction which can be used to produce hydrogen fuel using renewable energies via water electrolysis. Currently, there is tremendous interest in the discovery of low cost and efficient electrocatalysts for the OER. OER electrolysis as an important reaction involved in reachargeable metal-air batteries and has attracted immense attention for clean energy generation and efficient enegry storage[1]. In this work, by using the electroless metal deposition method the binary and ternary CoFe, CoFeMn, and CoFeMo coatings with different compositions have been deposited on the nickel foam substrate. The reducing agent was morpholine borane. The surface morphology, structure and composition of prepared catalysts were characterized by scanning electron microscopy (SEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES). OER was investigated in 1 M KOH solution by linear sweep voltammetry (LSV). The deposited catalysts (CoFe, CoFeMn, CoFeMo coatings) provide compact and crack-free layers with typical globular morphology. It was derived that the CoFe coating gives the lowest overpotential of 331.7 mV and the highest mass activity of 81.79 mA mg-1 for the OER to achieve a current density of 40 mA cm-2 [2].
