| abstract |
The invention provides a vanadium-doped carbon-coated iron carbide multifunctional composite electrocatalyst, a preparation method and application thereof, and belongs to the technical field of electrochemical catalysis. Ferric oxide, dicyandiamide and sodium chloride are mixed evenly and heat preservation treatment is carried out at 700～950℃ under a protective atmosphere. The mass ratio of sodium orthovanadate, ferric trichloride hexahydrate and dicyandiamide is (0.01～0.06) : (0.2-0.7): (2-4.5) to obtain a mixture; the mixture is cooled in a protective atmosphere, washed and dried in sequence to obtain a vanadium-doped carbon-coated iron carbide multifunctional composite electrocatalyst. The process of the invention is simple, the production cost is low, and the conditions are easy to control, and the electrocatalyst prepared by the method can be used for HER, OER and ORR, and exhibits excellent catalytic activity. |