Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO ₂ Reduction

Electrochemical CO 2 reduction reaction (e‐CO RR) into high‐value chemicals is a promising approach for sustainable energy research, but there remains great challenge to develop efficient and stable catalysts. Herein, in situ synthesized uniform Ag nanoparticles (AgNPs) directly growing on the surface of 2D graphdiyne (GDY) selectively reducing with high efficiency stability are reported. Due special electronic distribution GDY, it not only serves as template growth AgNPs prevent its aggregation, also increases active sites transformation electrons through intimate interaction between phase interface enhance their cooperative catalytic effect, which highly improves electrocatalytic performance nanocomposite. Through investigations, found that Ag/GDY/CC nanocomposite electrochemically reduces Faraday up 92.1% current density 25.74 mA/cm at potential −1.3 V versus reversible hydrogen electrode (RHE). Meanwhile, during catalysis, composite maintains excellent ≈26 (threefold higher than Ag/CC), unchanged over 24 h. To best knowledge, herein, first experimental study an electrocatalyst based GDY represented.