Emerging dual-atomic-site catalysts for electrocatalytic CO2 reduction

The electrochemical CO2 reduction reaction (CO2RR) to yield high-value added fuels and chemicals provides a promising approach towards global carbon neutrality. Constant endeavors have been devoted the exploration of high-efficiency catalyst with rapid kinetics, low energy input, high selectivity. In addition maximum metal atomic utilization unique catalytic performance single-atom (SAC), dual-atomic-site catalysts (DASCs) offer more sophisticated tunable structure through modulations another adjacent atom, which can bring new opportunities for CO2RR as deeper extension SACs recently aroused surging interest. this review, we highlight recent advances on DASCs enhancing CO2RR. First, classification, synthesis, identification are provided according geometric electronic configuration dual-atomic active sites. Then, applications in categorized based marriage-type, hetero-nuclear, homo-nuclear Particularly, structure-activity relationship is elaborately summarized systematically analyzing pathways atom structures. Finally, challenges proposed inspiring design future structural accuracy activity