Modified WS2/Ni composite hydrogen-resistant coating for hydrogen energy equipment as well as preparation method and application of modified WS2/Ni composite hydrogen-resistant coating

The invention discloses a modified WS2/Ni composite hydrogen-resistant coating for hydrogen energy equipment as well as a preparation method and application of the modified WS2/Ni composite hydrogen-resistant coating. The preparation method comprises the following steps: adding WS2 into water, stirring, and then carrying out ultrasonic treatment to obtain a WS2 aqueous solution; the preparation method comprises the following steps: adding a cationic active agent into a WS2 aqueous solution, stirring to obtain a modified WS2 aqueous solution, and carrying out suction filtration and drying to obtain modified WS2; the modified WS2 is added into the nickel-based plating solution, stirring treatment is conducted, then ultrasonic treatment is conducted, and a modified WS2/Ni composite plating solution is obtained; the metal base material serves as a cathode, and the cathode and the anode are jointly soaked in the modified WS2/Ni composite plating solution for electro-deposition; and after electro-deposition is comp