| abstract |
An iron-cobalt-nickel-copper-based high-entropy alloy water electrolysis catalytic material and a preparation method therefor, pertaining to the technical field of composite material preparation. The water electrolysis catalytic material is composed of a reaction active material and a carrier. The reaction active material is iron-cobalt-nickel-copper-tin, iron-cobalt-nickel-copper-manganese, iron-cobalt-nickel-copper-vanadium, and other iron-cobalt-nickel-copper-based high-entropy alloy nanoparticles. The carrier is a carbon nanofiber material prepared by an electrostatic spinning method. The prepared water electrolysis catalytic material has a high specific surface area, which is conducive to diffusion of an electrolyte and desorption of a gas. The material can produce hydrogen and oxygen under alkaline conditions, and the hydrogen production rate under high voltages is far higher than that of a 20% Pt/C electrode. In addition, the carbon nanofibers can effectively protect the high-entropy alloy nanoparticles from the erosion of the electrolyte, and ensuring the catalytic material has good stability. |