Porphyrin-silver acetylide cluster catalysts with dual active sites for the electrochemical reduction of CO2

A one-step synthesis of porphyrin-silver acetylide clusters from tetra alkyne-substituted porphyrin is described. The solid-state properties of three 2D-like compounds were fully characterised using XPS and XRD while their catalytic properties under CO2 electroreduction reaction conditions were assessed and their faradaic efficiency quantified.