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Promoting Electrolysis of Carbon Monoxide toward Acetate and 1-Propanol in Flow Electrolyzer AITranslate

University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine; University of California Irvine
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Publisher: ACS
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Abstract AITranslate

Acetic acid/acetate is an important precursor for many chemical manufacturing sectors, as well as a feedstock for the microbial synthesis of value-added biofuel and biomass products. As the downstream reaction in tandem with the carbon dioxide reduction reaction, carbon monoxide electrolysis has a unique advantage over direct carbon dioxide reduction, boosting the selectivity for multicarbon products. However, highly selective and high-current-throughput acetate and 1-propanol production from CO electrolysis is yet to be explored. Herein, we present practical approaches for improving acetate and 1-propanol selectivity and yield from CO electrolysis using a commercial copper catalyst. Acetate showed a strong pH dependence with an optimum performance at 90% Faradaic efficiency and 128 mA cm–2 current density. In addition, 1-propanol showed a strong catalyst loading dependence, achieving 20% Faradaic efficiency under high-catalyst-loading conditions. In situ Raman and Multiphysics modeling further demonstrated the mechanism of the improvements.

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DOI:https://doi.org/10.1021/acsenergylett.2c02502

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Citation Information:

Acetic acid/acetate is an important precursor for many chemical manufacturing sectors, as well as a feedstock for the microbial synthesis of value-added biofuel and biomass products. As the downstream reaction in tandem with the carbon dioxide reduction reaction, carbon monoxide electrolysis has a unique advantage over direct carbon dioxide reduction, boosting the selectivity for multicarbon products. However, highly selective and high-current-throughput acetate and 1-propanol production from CO electrolysis is yet to be explored. Herein, we present practical approaches for improving acetate and 1-propanol selectivity and yield from CO electrolysis using a commercial copper catalyst. Acetate showed a strong pH dependence with an optimum performance at 90% Faradaic efficiency and 128 mA cm–2 current density. In addition, 1-propanol showed a strong catalyst loading dependence, achieving 20% Faradaic efficiency under high-catalyst-loading conditions. In situ Raman and Multiphysics modeling further demonstrated the mechanism of the improvements.

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GB/T 7714-2015 [1] Shengyuan Guo, Yuanchao Liu, Ying Huang, et al. ACS Energy Letters, 2023(8). DOI:10.1021/acsenergylett.2c02502.
MLA [1] Shengyuan Guo, et al., ACS Energy Letters, no. 8, 2023, https://doi.org/10.1021/acsenergylett.2c02502.
APA [1] Shengyuan Guo, Yuanchao Liu, Ying Huang, Hanson Wang, Eamonn Murphy, Laurent Delafontaine, Jiazhe “Loki” Chen, Iryna V. Zenyuk, & Plamen Atanassov. (2023). ACS Energy Letters(8). https://doi.org/10.1021/acsenergylett.2c02502
IEEE [1] Shengyuan Guo, Yuanchao Liu, Ying Huang, Hanson Wang, Eamonn Murphy, Laurent Delafontaine, Jiazhe “Loki” Chen, Iryna V. Zenyuk, and Plamen Atanassov, ACS Energy Letters, no. 8, 2023, doi: 10.1021/acsenergylett.2c02502.