Efficient hydrogen evolution activity of NiMoP electrodeposited on stainless steel mesh

In the context of industrial water electrolysis cells, the electrocatalyst often exhibits slow kinetics in water dissociation, allowing for reduced electrocatalytic performance in the production of hydrogen through water splitting. This report presents a novel ternary Nickel-Molybdenum-Phosphide (NiMoP) catalyst synthesis as a quick Tafel-step-decided electrocatalyst toward hydrogen evolution reaction (HER). Herein, we systematically evaluate the performance of various nickel-based catalysts when electrodeposited over the stainless-steel mesh (SSM) substrate for water electrolysis. The results reveal a diminishing trend in both the Tafel slope and overpotential in relation to the catalyst composition, following the order of Ni > NiMo > NiP > NiMoP. Consequently, NiMoP/SSM emerges as the top performer, displaying outstanding performance in terms of thermodynamics (the current density of 10 mA cm(-2), eta(10 )= 239 mV) and kinetics (S-Tafel = 98.22 mV & sdot;dec(-1 )at 1.0 M KOH) in water splitting. Thus, this novel ternary NiMoP catalyst with SSM, prepared through a straightforward and cost-effective synthesis method, holds great promise as a non-precious hydrogen evolution catalyst in water electrolyzing.