articleJournal of the American Chemical SocietyMay 28, 2024Closed access

Steering the Reaction Pathway of CO 2 Electroreduction by Tuning the Coordination Number of Copper Catalysts

East China Normal University · Chinese Academy of Sciences · +3 more institutions

PubMed
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Abstract

Cu-based catalysts are optimal for the electroreduction of CO2 to generate hydrocarbon products. However, controlling product distribution remains a challenging topic. The theoretical investigations have revealed that the coordination number (CN) of Cu considerably influences the adsorption energy of *CO intermediates, thereby affecting the reaction pathway. Cu catalysts with different CNs were fabricated by reducing CuO precursors via cyclic voltammetry (Cyc-Cu), potentiostatic electrolysis (Pot-Cu), and pulsed electrolysis (Pul-Cu), respectively. High-CN Cu catalysts predominantly generate C2+ products, while low-CN Cu favors CH4 production. For instance, over the high-CN Pot-Cu, C2+ is the main product,…

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