▎ 摘　　要

NOVELTY - Preparing an electrocatalytic selective hydrogenation of acetylene-supported metal phthalocyanine compound electrode, comprises (1) under ultrasonic conditions, dispersing metal phthalocyanine compound and carrier in dimethylformamide, treating with plasma, and filtering to obtain a solid product, washing and drying, taking the prepared catalyst and the Nafion(Sulfonated tetrafluoroethylene based fluoropolymer-copolymer) solution of 5 wt.% and pouring into the organic solvent respectively, dissolving in the organic solvent with auxiliary solute, and obtaining slurry; where carrier is mesoporous carbon, graphene, carbon nanotube or graphyne; (2) washing the cut electrode material with hydrochloric acid, ethanol and deionized water, and (3) applying the slurry evenly to electrode material and irradiating with an infrared lamp until the solution is completely dry and obtaining a supported metal phthalocyanine compound electrode. USE - The method is useful for preparing electrocatalytic selective hydrogenation of acetylene-supported metal phthalocyanine compound electrode. ADVANTAGE - The method improves the stability of the catalyst by constructing the weak interaction between the metal phthalocyanine compound and the carrier. The introduction of the carrier greatly improves the absorption of acetylene gas and improves the catalytic activity. The method has high activity, high selectivity and high stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method of electrocatalytic acetylene selective hydrogenation.