Preparation method of Cu-based metal organic polymer material and application of Cu-based metal organic polymer material in electro-catalytic synthesis of urea

The invention belongs to the technical field of electro-catalysis, and particularly relates to a preparation method of a Cu-based metal organic polymer material and application of the Cu-based metal organic polymer material in electro-catalytic synthesis of urea. CuSO4. 5H2O is dispersed in ultrapure water and THF to form a metal salt solution, PMDA is dispersed in THF to form a dispersion liquid, the mixed liquid is subjected to ultrasonic dispersion and transferred to a Teflon high-pressure reactor for heating reaction, and Cu-PMDA polymer powder is obtained through suction filtration, drying and grinding treatment. The Cu-based metal organic polymer powder which is simple in raw material, convenient to synthesize and stable in performance is obtained. The powder is prepared into printing ink, carbon cloth is dispensed with the printing ink to prepare a catalytic electrode, the catalytic electrode reaches the highest urea yield of 3.68 micromoles/h mg and the faraday efficiency of 30.26% under-0