Copper Nanoclusters Imparted Metalloporphyrin based Metal‐Organic Frameworks for Enhanced CO2 Electroreduction

Abstract Strategies that can introduce catalytic auxiliary into electrocatalysts to boost the performance of electrocatalytic CO 2 reduction reaction (CO 2 RR) are meaningful in exploring hybrid electrocatalytic systems. Here, a series of hybrid electrocatalysts (Cu NCs@MOF‐545‐M, M=Fe, Co and Ni) have been prepared by assembly Cu NCs with MOF‐545‐M (M=Fe, Co and Ni) and successfully applied in electrocatalytic CO 2 RR. In the obtained MOF‐545‐M (M=Fe, Co and Ni), the integration of Cu NCs with MOF‐545‐M (M=Fe, Co and Ni) can create a hybrid electrocatalytic system that enhances the charge transfer efficiency and electrocatalytic CO 2 RR activity. Specifically, the optimal Cu NCs@MOF‐545‐Co presents remarkable FE CO over a wide potential range (−0.7 V to −1.0 V), high CO generation rate (8.2 mol m −2 h −1 ) and excellent maximum energy efficiency (69 %, −0.7 V), which is superior to Cu NCs and MOF‐545‐Co, and represented to be one of the best performances to date. This work demonstrates a facile approach to significantly improve the FE CO by loading metal nanoclusters into MOFs, providing a valuable reference for future studies on hybridization strategies to enhance the performance of electrocatalysts.