▎ 摘　　要

NOVELTY - Preparing two-dimensional heterojunction graphene/organometalloporphyrin polymer, comprises (1) adding graphene and coupling catalyst metal salt into first solvent, and mixing to obtain dispersion, (2) dissolving 5,10,15,20-tetra(4-ethynylphenyl)porphyrin metal monomer in the second solvent, and mixing to obtain 5,10,15,20-tetra(4-ethynylphenyl)porphyrin metal monomer solution, (3) adding the 5,10,15,20-tetrakis(4-ethynylphenyl)porphyrin metal monomer solution obtained in step (2) into the dispersion obtained in step (1), mixing and reacting, and (4) post-processing the reaction system in step (3) to obtain final product. USE - The two-dimensional heterojunction graphene/organometalloporphyrin polymer is useful for electrocatalytic reduction of carbon dioxide reaction (claimed). ADVANTAGE - The two-dimensional heterojunction graphene/organometalloporphyrin polymer: large specific surface area, more exposed active sites, fast charge transfer speed, monodispersed active center and stable structure, and excellent performance in electrocatalytic reduction of carbon dioxide. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for two-dimensional heterojunction graphene/organometalloporphyrin polymer prepared by above method.