Enriching the Local Concentration of CO Intermediates on Cu Cavities for the Electrocatalytic Reduction of CO2 to C2+ Products

• DOI: 10.1021/acsami.2c21902
• Publication Date: 2023-03-24T17:58:06Z
• Authors: Li-Xia Liu; Yanming Cai; Huitong Du; Xuanzhao Lu; Xiang Li; Fuqiang Liu; Jiaju Fu; Jun-Jie Zhu
• Keywords: Carbon fibers

The electrochemical carbon-dioxide reduction reaction (CO2RR) to high-value multi-carbon (C2+) chemicals provides a hopeful approach store renewable energy and close the carbon cycle. Although copper-based catalysts with porous architecture are considered potential electrocatalysts for CO2 C2+ chemicals, challenges remain in achieving high selectivity partial current density simultaneously practical application. Here, Cu cavity structure by situ electrochemical-reducing Cu2O cavities developed high-performance conversion of fuels. as-described exhibit Faradaic efficiency 75.6 ± 1.8% 605 14 mA cm-2, respectively, at low applied (-0.59 V vs RHE) microfluidic flow cell. Furthermore, Raman tests finite element simulation indicated that can enrich local concentration CO intermediates, thus promoting C-C coupling process. More importantly, should be major through *CO-*CHO pathway as demonstrated spectra functional theory calculations. This work provide ideas insights into designing producing compounds highlight important effect characterization uncovering mechanism.