Stable supramolecular structure system to identify activity origin of CO2 electroreduction

N-doped or N-heterocyclic nanostructured electrocatalysts for electrocatalytic CO2 reduction reaction have made important progress in product selectivity. For further development, it is significant to identify exactly activity origin of these electrocatalysts. Crystal electrocatalysts with accurate structure can provide a visual research platform for identifying catalytic active sites and studying reaction mechanism. The catalytic activity of pyridine N for CO2 electroreduction was firstly determined structurally by crystal supramolecular coordination compound model system.