Regulating Organic Modifiers on Metal‐Based Catalysts for Enhanced Electrocatalytic CO₂ Reduction

Abstract

Electrochemical CO2 reduction reaction (CO2RR) has been proved as a promising pathway for valuable chemical production and sustainable carbon cycling. Various regulatory strategies have been explored to boost CO2RR performance. Among these, metal‐based electrocatalytic CO2RR systems regulated by organic modifiers have been shown to play a pivotal role in regulating the complex catalytic processes. Herein, we provide an overview of the recent effective research for regulating the organic modifiers on metal‐based catalyst to enhance CO2RR performance. Two main fundamental mechanisms of enhanced CO2RR with organic modifiers are discussed, including controlling the local microenvironment (local concentration of reactant/intermediate, local pH, local electric field) at the electrode surface and modulating intrinsic catalytic active sites (crystal and electronic structure). Moreover, effective strategies to preserve a stable organic modifier/catalysts interface are also reviewed. Finally, the challenges and prospects faced by organic modifiers regulated metal‐based catalyst in CO2RR are proposed. We hope this review will provide a systematic and comprehensive understanding of the actual impacts of organic modifiers on the development of efficient CO2RR catalysts with favorable activity, selectivity, and stability.