Bismuth-copper single atom alloy material, and preparation method and application thereof

Abstract

The present invention discloses a bismuth-copper single-atom alloy catalyst, a preparation method and an application thereof. The catalyst includes copper nanoparticles and bismuth atoms. The copper nanoparticles are of a polycrystalline structure, and the bismuth atoms are dispersed in the copper nanoparticles in a single-atom form. The catalyst is prepared by means of thermal decomposing the metal complex and the followed in-situ electroreduction. The preparation method of the bismuth-copper single-atom alloy catalyst of the present invention is simple to operate, and the single-atom bismuth content is adjustable. The single-atom bismuth content can be adjusted by changing reaction conditions. By means of loading mutually isolated bismuth atoms on the copper nanoparticles, the electronic state of copper atoms is adjusted, such that an ability of bismuth-copper single-atom alloy to catalyze carbon-carbon coupling is improved, so as to obtain a higher selectivity of electrocatalytically reducing carbon dioxide to a multi-carbon product, providing a new way for efficient conversion of carbon dioxide.

Dependencies are inferred from the claim text.