Ni-W alkaline electrolytic water hydrogen evolution catalyst, preparation method and application

The invention discloses a Ni-W alkaline electrolytic water hydrogen evolution catalyst, a preparation method and application, and belongs to the field of alkaline electrolytic water catalysts. The method comprises the following steps that S1, a nickel net is polished, and then pretreatment is conducted; s2, a plating solution is prepared, wherein the plating solution contains nickel salt, tungsten salt, a complexing agent, a brightening agent and a surface active agent; taking the pretreated nickel net as a cathode and an anode, and placing the nickel net in a plating solution for electro-deposition to obtain a Ni-W catalyst crude product; and S3, the obtained Ni-W catalyst crude product is cleaned and then blow-dried, then the Ni-W catalyst crude product is put into a tubular furnace to be subjected to hydrogen removal treatment, and the Ni-W alkaline electrolytic water hydrogen evolution catalyst is obtained. The nickel pre-plating method is adopted, the complexing agent, the brightening agent and the surfa