Electrocatalytic reduction of CO2 in water on a polymeric [{Ru0(bpy)(CO)2}n](bpy = 2,2′-bipyridine) complex immobilized on carbon electrodes

Abstract

The electrocatalytic reduction of CO₂ on a carbon/[{Ru⁰(bpy)(CO)₂}_n](bpy = 2,2′-bipyridine) modified electrode, prepared by electrochemical reduction of [Ru^II(bpy)(CO)₂Cl₂], leads to the selective and quantitative formation of CO even in pure aqueous electrolyte; the stability of the modified cathode is improved by using a preformed polypyrrolic film functionalized with this complex.