▎ 摘　　要

NOVELTY - Method for preparing catalyst material for reducing carbon dioxide to carbon monoxide by adding zinc nitrate hexahydrate, terephthalic acid, 1,2,4-triazole, dimethylformamide, ethanol and water, performing ultrasonic dissolution, reacting to obtain crystals, filtering, washing and vacuum activating to obtain activated crystals FJU40, mixing the FJU-40 and graphene, placing it in a tube furnace and calcining, cooling to normal temperature with the furnace, adding sodium bismuth dihydrate and conductive carbon black XC-72R into beaker (A) and silver nitrate and adding water, ultrasonically reacting and stirring with a glass rod to make it completely dispersed, adding sodium borohydride to beaker (B) containing purified water, stirring with a glass rod to make it fully dissolved, and dripping the solution in beaker (B) to the solution in beaker (A), stirring while dripping, using magnetic stirrer to stir, centrifuging and drying to obtain catalyst material. USE - Method for preparing catalyst material for reducing carbon dioxide to carbon monoxide. ADVANTAGE - The method ensures excellent catalytic reduction performance in terms of electrocatalytic reduction of carbon dioxide to carbon monoxide, effectively overcomes the problem of high reduction potential, and improves the Faraday efficiency of the product. DETAILED DESCRIPTION - Method for preparing catalyst material for reducing carbon dioxide to carbon monoxide by (i) adding 0.1 mmol zinc nitrate hexahydrate, 0.01 mmol terephthalic acid and 0.01 mmol 1,2,4-triazole into the beaker, adding 5 ml dimethylformamide, 3 ml ethanol and 25 ml distilled water, performing ultrasonic dissolution, transferring the solution to a glass bottle with a bottle cap, reacting at 80 degrees C for 24 hours to obtain crystals, filtering, washing with methanol 5 times, and vacuum activating at 60 degrees C for 12 hours to obtain activated crystals FJU40, (ii) uniformly mixing the FJU-40 and graphene prepared in the step (i) to a mass ratio of 1:3-7, (iii) placing the material obtained in the step (ii) in a tube furnace and calcining in a nitrogen atmosphere, where the temperature rise rate is 10 degrees C/minutes, from normal temperature to 600 degrees C, maintaining it at 600 degrees C for 5 hours, and cooling to normal temperature with the furnace, (iv) adding the substance obtained in the step (iii), sodium bismuth dihydrate and conductive carbon black XC-72R into beaker (A) in a mass ratio of 2.5-4:1:0.5-1, (v) adding 0.035-0.06 mol silver nitrate to the beaker (A) of the step (iv), and adding 150 ml purified water, ultrasonically reacting for 30 minutes and stirring with a glass rod to make it completely dispersed, (vi) adding 4.5 mmol sodium borohydride to beaker (B) containing 150 ml purified water, stirring with a glass rod to make it fully dissolved, and (vii) dripping the solution in beaker (B) to the solution in beaker (A), stirring while dripping, after completing dripping, using magnetic stirrer to stir for 5 hours, centrifuging with a centrifuge washing and drying to obtain catalyst material.