Doped ruthenium-based catalyst as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of electro-catalysis, and particularly relates to a doped ruthenium-based catalyst and a preparation method and application thereof. Wherein transition metal doped elements can stabilize crystal lattices and inhibit structural change and active component loss of the catalyst in the reaction process, and carbon optimizes electron cloud distribution and enhances the adsorption and activation ability to reaction intermediates. Furthermore, transition metal and carbon form a metal carbide network structure with high corrosion resistance and conductivity in ruthenium dioxide crystal lattices, so that the metal carbide network structure can be used as a'network skeleton 'to strengthen the mechanical strength of the carrier, a high-speed electron transmission channel is constructed, and the interface charge transfer efficiency is optimized, so that the catalytic activity of the ruthenium-based catalyst is improved; migration agglomeration and dissolution loss of ruthenium dioxide particles in a high-potential environment can be effectively inhibited, so that the chemical stability and the thermal stability of the catalyst are improved in a breakthrough manner; meanwhile, the loading capacity of noble metal ruthenium is remarkably reduced, and the raw material cost is greatly saved.

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