The currentless synthesis of tantalum and niobium carbide coatings on the carbon fibers and their electrocatalytic activity for the hydrogen peroxide decomposition reaction

Abstract

Coatings of tantalum and niobium carbides on the carbon fibers Carbopon-B-22 were obtained by the currentless transfer in the molten salts. The kinetics of the electrocatalytic reaction of the hydrogen peroxide decomposition on the surface of TaC/C and NbC/C composite materials was studied. The order of reactions was established, the rate constants were determined, and the activation energies of the hydrogen peroxide decomposition were calculated. It was established that the electrocatalytic activity of the NbC/C composition is higher than TaC/C.