Electrocatalytic CO2 reduction in methanol catalyzed by mono-, di-, and electropolymerized phthalocyanine complexes

The electroreduction of CO2 was studied in methanol in the presence of mono- and diphthalocyanine complexes and phthalocyanine films prepared by electrochemical anodic polymerization. Methyl formate is the main reaction product of the reaction catalyzed by the mono- and diphthalocyanine complexes of rare-earth metals. Copper 2,9,16,2 3-tetra-tert-butylphthalocyanine allows the transformation Of CO2 into methane in similar to30% yield. In the presence of both electropolymerized and graphite electrode-supported copper 2,9,16,23-tetra-aminophthalocyanine, CO and methyl formate are the main reaction products.