▎ 摘　　要

NOVELTY - Preparing copper nickel double metal nitrogen carbon material comprises (i) placing urea in a crucible, transferring to a muffle furnace for calcination; (ii) placing carbon nitride and graphene oxide in a reactor, and introducing aqueous ammonia to carry out hydrothermal reaction; (iii) powder after step 2) after the reaction is suction filtered and dried to obtain base material; (iv) base material obtained in step 3) and copper phthalocyanine, nickel phthalocyanine and methanol are placed in an alumina ball mill tank and transferred to a planetary ball mill for ball milling; (v) vacuum-dry the solution after ball milling; (vi) placing dried powder in an alumina crucible, transfering to a tube furnace, and heat-treating under a nitrogen atmosphere, and cooling to room temperature. USE - The method is useful for preparing copper-nickel double-metal nitrogen-carbon material, which is useful in carbon dioxide electrochemical reduction. ADVANTAGE - The method is simple and economic, easy to operate, and provides copper-nickel double-metal nitrogen carbon material with improved conductivity and stability, and improved catalytic reduction performance. The metal phthalocyanine has low cost, excellent electronic characteristics.