The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Effects of Electrolyte Anions on the Reduction of Carbon Dioxide to Ethylene and Ethanol on Copper (100) and (111) Surfaces
Abstract
The CO 2 electroreduction reaction has been investigated on Cu(100) and Cu(111) surfaces in 0.1 m aqueous solutions of KClO 4, KCl, KBr, and KI electrolyte. The formation of ethylene and ethanol on these surfaces generally increased as the electrolyte anion was changed from ClO 4−→Cl−→Br−→I−. For example, on Cu(100) at −1.23 V versus RHE, as the electrolyte anion changed from ClO 4− to I−, the faradaic efficiency (FE) of ethylene formation increased from 31 to 50 %, FE ethanol increased from 7 to 16 %, and the associated current densities increased five‐ and sevenfold, respectively. A remarkable total FE of up to 74 % for C 2 and C 3 products was obtained in the presence of KI. Despite surface roughening in the presence of the electrolytes, the Cu(100) electrode still enhanced the formation of C 2 compounds better than Cu(111). The favorable reduction of CO 2 to C 2 products in KI electrolyte was correlated with a higher *CO population on the surface, as shown using linear sweep voltammetry. In situ Raman spectroscopy indicated that the coordination environment of *CO was altered by the used electrolyte anion. Thus, apart from affecting the morphology of the electrode and local pH value, we propose that the anion plays a critical role in enhancing the formation of C 2 products by tuning the coordination environment of adsorbed *CO, which gives rise to more efficient C−C coupling.
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Ren, D., Deng, Y., Handoko, A. D., Chen, C. S., Malkhandi, S., & Yeo, B. S. (2015) · ACS Catalysis · doi:10.1021/cs502128q · Cited by 930
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Friedlingstein, P., Andrew, R. M., Rogelj, J., Peters, G. P., Canadell, J. G., Knutti, R., Luderer, G., Raupach, M. R., Schaeffer, M., van Vuuren, D. P., et al. (2014) · Nature Geoscience · doi:10.1038/ngeo2248 · Cited by 771
Grain-Boundary-Dependent CO 2 Electroreduction Activity
Feng, X., Jiang, K., Fan, S., & Kanan, M. W. (2015) · Journal of the American Chemical Society · doi:10.1021/ja5130513 · Cited by 694
Probing the Active Surface Sites for CO Reduction on Oxide-Derived Copper Electrocatalysts
Verdaguer-Casadevall, A., Li, C. W., Johansson, T. P., Scott, S. B., McKeown, J. T., Kumar, M., Stephens, I. E. L., Kanan, M. W., & Chorkendorff, I. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b06227 · Cited by 645
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Lee, S., Kim, D., & Lee, J. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201505730 · Cited by 320
Effects of Anion Identity and Concentration on Electrochemical Reduction of CO 2
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Theoretical Insights into Heterogeneous (Photo)electrochemical CO2Reduction
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Electrochemical CO2 reduction (CO2RR) to multi-carbon products over copper-based catalysts
Woldu, A. R., Huang, Z., Zhao, P., Hu, L., & Astruc, D. (2022) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2021.214340 · Cited by 578
Yi, J., Xie, R., Xie, Z., Chai, G., Liu, T., Chen, R., Huang, Y., & Cao, R. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.202010601 · Cited by 566
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Metadata
- Authors
- Huang, Y., Ong, C. W., & Yeo, B. S.
- Venue
- ChemSusChem
- Publisher
- Wiley
- Published
- 2018-07-30
- Volume
- 11
- Issue
- 18
- Pages
- 3299-3306
- ISSN
- 1864-5631 (ISSN-L)
- 1864-564X
- OpenAlex
- W2809773022
- Cited by
- 170
- References
- 8
- FWCI
- 3.28
- Type
- journal article
- Language
- en
- Open access
- closed
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