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

Abstract Electrochemical CO 2 reduction reaction (CO 2 RR) has been proved as a promising pathway for valuable chemical production and sustainable carbon cycling. Various regulatory strategies have been explored to boost CO 2 RR performance. Among these, metal‐based electrocatalytic CO 2 RR 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 CO 2 RR performance. Two main fundamental mechanisms of enhanced CO 2 RR with organic modifiers are discussed, including controlling the local microenvironment (local concentration of reactant/intermediate, local pH, interface electric field) at the electrode surface and modulating intrinsic catalytic activity (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 catalysts in CO 2 RR 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 CO 2 RR catalysts with favorable activity, selectivity, and stability.