Surface Immobilization of Transition Metal Ions on Nitrogen‐Doped Graphene Realizing High‐Efficient and Selective CO₂ Reduction

Abstract

Electrochemical conversion of CO₂ to value-added chemicals using renewable electricity provides a promising way to mitigate both global warming and the energy crisis. Here, a facile ion-adsorption strategy is reported to construct highly active graphene-based catalysts for CO₂ reduction to CO. The isolated transition metal cyclam-like moieties formed upon ion adsorption are found to contribute to the observed improvements. Free from the conventional harsh pyrolysis and acid-leaching procedures, this solution-chemistry strategy is easy to scale up and of general applicability, thus paving a rational avenue for the design of high-efficiency catalysts for CO₂ reduction and beyond.