eering, H

eeactiv S matri crease t crease t a b s t r a c t electrolysis technology is a sustainablemethod to produce hydrogen which relies only on renewable energy sources [3]. While the water electrolysis is of particular significance for hydrogen generation, its application is strictly limited by the high during the hydrogen evolution reaction (HER) [4]. In order to n dedicated to the or minimizing the HER overpotential and/or improving promising candidates for efficient HER electrode materials, the Ni-based materials have attracted a great attention due to their high activity and corrosion resistance in alkaline media [8]. In particular, NieS alloy is considered to be an excellent cathode material for the alkaline electrolysis relative to other binary alloys due to its easy preparation and low cost [9]. Importantly, amorphous Ni3S2 formed during the co-deposition process is able to accelerate the hydrogen adsorption and thus reduce the HER overpotential [10]. In addition