A two-dimensional nitrogen-doped carbon material loaded rhenium-based alloy nanoparticle electrocatalyst, a preparation method and application thereof

Abstract

The application discloses a two-dimensional nitrogen-doped carbon material loaded rhenium-based alloy nanoparticle electrocatalyst, and a preparation method thereof. The preparation method comprises the following steps: dissolving a rhenium-based metal salt, a transition metal salt, a purine small molecule and an inorganic salt in water to perform a hydrothermal reaction, so as to obtain a two-dimensional structure precursor; and calcining the two-dimensional structure precursor under the protection of an inert gas, so as to obtain the electrocatalyst. The high-melting-point rhenium metal is used to form alloy nanoparticles with the transition metal, so that the defects of sintering of the transition metal-based catalyst in a high-temperature synthesis process can be effectively avoided, the aggregation and growth of the alloy nanoparticles in the high-temperature synthesis process are prevented, the alloy nanoparticles are uniformly and highly densely loaded on the surface of a two-dimensional carbon nitride carrier, the proportion of surface metal atoms is greatly increased, and finally, the prepared electrocatalyst has good hydrogen evolution reaction catalytic activity and catalytic stability.

Images