Research Progress on Triphase Interface Electrocatalytic Carbon Dioxide Reduction

Abstract

Electrocatalytic carbon dioxide reduction is the focus and nodus of energy chemistry and catalytic science. As a basic concept in physical chemistry, gas-solid-liquid triphase interface model has been widely studied in electrocatalytic carbon dioxide reduction reaction in recent years, showing many advantages compared with traditional solid-liquid biphase systems. In this review, we discuss the research progress of triphase interface eletrocatalytic carbon dioxide reduction, focused on the classification as well as the principle of triphase interface eletrocatalytic systems. Then, carbon dioxide electroreduction properties of various triphase systems including underwater superaerophilic and gas diffusion layer systems are discussed, with special attention on the influence factors, such as the interfacial diffusion and interfacial wettability of reactants. Finally, we summarize and prospect the existing problems and the future development direction of electrocatalytic carbon dioxide reduction based on triphase systems.