The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.
Selective and High Current CO2 Electro-Reduction to Multicarbon Products in Near-Neutral KCl Electrolytes
Abstract
Reducing CO 2 to value-added multicarbon (C 2+ ) fuels and chemicals using renewable energy is a viable way to circumvent CO 2 buildup in the atmosphere and facilitate closing the carbon cycle. To date it remains a challenge to achieve high product selectivity and long-term stability of electrocatalytic carbon dioxide reduction reaction (CO 2 RR) especially at practically relevant high current levels >100 mA cm –2 . Here, we report a simple electrodeposited Cu electrocatalyst on a hydrophobic porous gas-diffusion layer (GDL) electrode affording stable and selective CO 2 RR to C 2+ products in near-neutral KCl electrolytes. By directing the CO 2 stream to fully submerged hydrophobic GDLs in a H-cell, high C 2+ partial current densities near 100 mA cm –2 were achieved. In a flow-cell setup, the Cu/GDL cathode in 2 M KCl afforded stable CO 2 RR superior to that in widely used KOH electrolytes. We found that Cu etching/corrosion associated with trace oxygen played a role in the catalyst instability in alkaline media under cathodic CO 2 RR conditions, a problem largely suppressed in near-neutral electrolyte. A two-electrode CO 2 electrolyzer was constructed with a Cu/GDL cathode in KCl catholyte and an anode comprised of nickel–iron hydroxide on nickel foam (NiFe/NF) in a KOH anolyte separated by Nafion membrane. By periodically adding HCl to the KCl catholyte to compensate the increasing pH and remove accumulated (bi)carbonates, we observed little decay over ∼30 h in flow-cell CO 2 RR activity and selectivity at 150 mA cm –2 with a high Faradaic efficiency (FE) of ∼75% and energy efficiency of 40% for C 2+ products.
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Cites
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What would it take for renewably powered electrosynthesis to displace petrochemical processes?
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A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels
Qiao, J., Liu, Y., Hong, F., & Zhang, J. (2014) · Chem. Soc. Rev. · doi:10.1039/c3cs60323g · Cited by 2,990
CO 2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface
Dinh, C.-T., Burdyny, T., Kibria, M. G., Seifitokaldani, A., Gabardo, C. M., García de Arquer, F. P., Kiani, A., Edwards, J. P., De Luna, P., Bushuyev, O. S., et al. (2018) · Science · doi:10.1126/science.aas9100 · Cited by 2,515
Enhanced electrocatalytic CO2 reduction via field-induced reagent concentration
Liu, M., Pang, Y., Zhang, B., De Luna, P., Voznyy, O., Xu, J., Zheng, X., Dinh, C. T., Fan, F., Cao, C., et al. (2016) · Nature · doi:10.1038/nature19060 · Cited by 2,000
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Partially oxidized atomic cobalt layers for carbon dioxide electroreduction to liquid fuel
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Highly selective plasma-activated copper catalysts for carbon dioxide reduction to ethylene
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Dopant-induced electron localization drives CO2 reduction to C2 hydrocarbons
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Self-citationHoang, T. T. H., Verma, S., Ma, S., Fister, T. T., Timoshenko, J., Frenkel, A. I., Kenis, P. J. A., & Gewirth, A. A. (2018) · Journal of the American Chemical Society · doi:10.1021/jacs.8b01868 · Cited by 852
Cited by
Qiao, Y., Lai, W., Huang, K., Yu, T., Wang, Q., Gao, L., Yang, Z., Ma, Z., Sun, T., Liu, M., et al. (2022) · ACS Catalysis · doi:10.1021/acscatal.1c05135 · Cited by 336
Yan, T., Chen, X., Kumari, L., Lin, J., Li, M., Fan, Q., Chi, H., Meyer, T. J., Zhang, S., & Ma, X. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00514 · Cited by 328
Metadata
- Authors
- Zhang, X., Li, J., Li, Y.-Y., Jung, Y., Kuang, Y., Zhu, G., Liang, Y., & Dai, H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-02-22
- Volume
- 143
- Issue
- 8
- Pages
- 3245-3255
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3132072414
- Cited by
- 213
- References
- 17
- FWCI
- 6.31
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, X., Li, J., Li, Y.-Y., Jung, Y., Kuang, Y., Zhu, G., Liang, Y., & Dai, H. (2021). Selective and High Current CO2 Electro-Reduction to Multicarbon Products in Near-Neutral KCl Electrolytes. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.0c13427
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