▎ 摘　　要

NOVELTY - The method involves placing an appropriate amount of ordinary single-layer graphene in a tube furnace, and passing ammonia gas for high-temperature heating to obtain nitrogen-doped graphene. The nitrogen-doped graphene is continued to be placed in a tube furnace, and argon gas is introduced for high temperature heating, to obtain defective graphene. An appropriate amount of copper phthalocyanine is taken, mixed with the defective graphene, and placed in DMF for ultrasonic treatment and stirring treatment. The ultrasonically stirred sample is placed in a vacuum oven for drying, and then the dried sample is taken out to obtain the target catalytic materialcopper phthalocyanine/defective graphene composite material. The electrochemical carbon dioxide reduction tests are performed on the copper phthalocyanine/defective graphene composites. USE - Method for preparing carbon dioxide electrocatalytic reduction material with excellent catalytic efficiency and catalytic stability. ADVANTAGE - The method provides composite material with higher formic acid Faraday efficiency and catalytic stability in carbon dioxide electro-catalytic reduction. The method uses single-layer graphene with rich source as raw material. The preparation process is made simple and does not need expensive equipment. The obtained product has good quality and good stability. The material is environment-friendly, excellent performance, and is a very promising catalytic material. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view of the method for preparing carbon dioxide electrocatalytic reduction material. (Drawing includes non-English language text)