▎ 摘　　要

NOVELTY - Carbon-supported bimetallic single-atom catalyst comprises a carbon support and active metals N and M, where N and M are respectively two kinds of metals e.g. iridium, rhodium, platinum, ruthenium, gold, silver, rhenium, cobalt, nickel, chromium and tin, and N and M are different, metals N and M are atomically monodispersed on the surface of carbon supports in the form of mononuclear complexes containing carbonyl and halogen ligands, respectively. USE - Used as carbon-supported bimetallic single-atom catalyst. ADVANTAGE - The catalyst has simple preparation process and strong universality, is highly dispersed and stability, and can be prepared with high-capacity in batches. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of the catalyst, comprising (i) preparing carbon support-supported bimetallic N and M nanoparticles, where the specific process is: impregnating carbon support with equal volume of precursor solution containing bimetallic N and M, calcining in inert gas (at 300-500°C), and reducing by hydrogen (at 300-500°C), and supporting the nano-alloy particles containing metal N and M on carbon carrier; and (ii) reusing at least one of carbon monoxide and halogen, hydrohalic acid or halogenated hydrocarbon to react with the alloy nanoparticles of metal N and M at the same time, and carry outing in-situ atomic-level monodispersion treatment to obtain carbon-supported bimetallic single-atom catalysts.