AgC self-supporting electrode, preparation method and application

The invention belongs to the technical field of electrochemical reduction of carbon dioxide, and particularly relates to an Ag/C self-supporting electrode, a preparation method and application. The invention provides a self-supporting electrode without an adhesive, the preparation process of the self-supporting electrode is simple, and ultra-small silver nanoparticles (Sketon Ag-NPs) which are uniformly distributed are embedded into a microporous layer of a substrate gas diffusion layer (GDL). And the carbon spheres in the GDL can effectively avoid aggregation of Ag NPs, so that the conductivity of the electrode is improved. Meanwhile, due to the unique framework structure, the prepared electrode has high intrinsic activity and electrocatalytic activity site density and high local CO2/H2O proportion, a high-activity and stable solid-liquid-gas three-phase interface can be formed easily, and the electrode has excellent electrocatalytic durability. 本发明属于电化学还原二氧化碳技术领域，具体涉及一种Ag/C自支撑电极、制备方法及应用。本发明提供一种无需粘合剂的自支撑电极，其