1. Synergy of Cu/C3N4 Interface and Cu Nanoparticles Dual Catalytic Regions in Electrolysis of CO to Acetic Acid.
- Author
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Yan, Xupeng, Zhang, Menglu, Chen, Yizhen, Wu, Yahui, Wu, Ruizhi, Wan, Qiang, Liu, Chunxiao, Zheng, Tingting, Feng, Rongjuan, Zhang, Jing, Chen, Chunjun, Xia, Chuan, Zhu, Qinggong, Sun, Xiaofu, Qian, Qingli, and Han, Buxing
- Subjects
COPPER ,ACETIC acid ,METALLIC surfaces ,SOLID electrolytes ,CARBON monoxide ,DENSITY functional theory ,ELECTROLYTIC reduction - Abstract
Electrochemical reduction reaction of carbon monoxide (CORR) offers a promising way to manufacture acetic acid directly from gaseous CO and water at mild condition. Herein, we discovered that the graphitic carbon nitride (g‐C3N4) supported Cu nanoparticles (Cu−CN) with the appropriate size showed a high acetate faradaic efficiency of 62.8 % with a partial current density of 188 mA cm−2 in CORR. In situ experimental and density functional theory calculation studies revealed that the Cu/C3N4 interface and metallic Cu surface synergistically promoted CORR into acetic acid. The generation of pivotal intermediate −*CHO is advantage around the Cu/C3N4 interface and migrated *CHO facilitates acetic acid generation on metallic Cu surface with promoted *CHO coverage. Moreover, continuous production of acetic acid aqueous solution was achieved in a porous solid electrolyte reactor, indicating the great potential of Cu−CN catalyst in the industrial application. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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