Bi/Zn Dual Single‐Atom Catalysts for Electroreduction of CO2 to Syngas

Abstract The electrochemical CO 2 reduction reaction to produce CO is one of the most promising pathways to eliminate CO 2 emissions and store intermittent energy sources. However, the most critical usage of CO is via mixing with H 2 to form syngas, which is a crucial feedstock for many value‐added chemicals. Therefore, producing syngas with a suitable CO/H 2 ratio in a one‐step reaction is desirable in the CO 2 RR process. To achieve this end, dual single‐atom sites supported by the nitrogen‐doped carbon show great potential. Herein, we show that a dual single‐atom catalyst with Bi−N 4 and Zn−N 4 units is efficient for generating syngas with tunable CO/H 2 ratios (0.20 to 2.92), which is of great significance to downstream industrial production. Moreover, this work highlights the potential to control the CO/H 2 ratios for efficient syngas production using the coexisting single‐atom sites.