The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
CO2 Electroreduction with Enhanced Ethylene and Ethanol Selectivity by Nanostructuring Polycrystalline Copper
Abstract
There are a number of recent reports on the use of oxidation/reduction cycling of Cu surfaces to improve their selectivity for ethylene formation in the aqueous CO 2 reduction reaction. Here, the oxidation/reduction process is examined in detail. It is found that the faradaic efficiencies for both ethylene and ethanol are enhanced after oxidation/reduction cycling in the presence of halide anions. Specifically, cycling of the electrode in the presence of chloride, bromide, or fluoride anions allows for an ethylene faradaic efficiency of approximately 15.2 %, a factor of 1.5 higher than that for polycrystalline copper (at −1.0 V vs. RHE). The faradaic efficiency for ethanol is also enhanced from 2.65 to approximately 7.6 %. The effects of electrochemical oxidation/reduction with the chloride anion were investigated by using in situ Raman spectroscopy, and the changes in the surface morphology of copper were monitored by using SEM. Consistent with prior reports, it is observed that during the oxidation part of the cycle, anodic corrosion forms a Cu 2 O layer, which consists of cubical crystals of about 150 nm. During the reduction sweep, it is converted to metallic copper, which forms irregular Cu nanoparticles of around 20 nm in diameter. The enhancement in ethylene formation is presumably attributed to the formation of grain boundaries, which may serve as active sites.
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Cites
New insights into the electrochemical reduction of carbon dioxide on metallic copper surfaces
Kuhl, K. P., Cave, E. R., Abram, D. N., & Jaramillo, T. F. (2012) · Energy & Environmental Science · doi:10.1039/c2ee21234j · Cited by 3,160
Li, C. W., & Kanan, M. W. (2012) · Journal of the American Chemical Society · doi:10.1021/ja3010978 · Cited by 2,000
Electroreduction of carbon monoxide to liquid fuel on oxide-derived nanocrystalline copper
Li, C. W., Ciston, J., & Kanan, M. W. (2014) · Nature · doi:10.1038/nature13249 · Cited by 1,728
Theoretical Considerations on the Electroreduction of CO to C 2 Species on Cu(100) Electrodes
Calle‐Vallejo, F., & Koper, M. T. M. (2013) · Angewandte Chemie International Edition · doi:10.1002/anie.201301470 · Cited by 941
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
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
Cited by
Progress and perspectives of electrochemical CO2 reduction on copper in aqueous electrolyte
Nitopi, S., Bertheussen, E., Scott, S. B., Liu, X., Engstfeld, A. K., Horch, S., Seger, B., Stephens, I. E. L., Chan, K., Hahn, C., et al. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00705 · Cited by 5,223
General Techno-Economic Analysis of CO 2 Electrolysis Systems
Jouny, M., Luc, W., & Jiao, F. (2018) · Industrial & Engineering Chemistry Research · doi:10.1021/acs.iecr.7b03514 · Cited by 1,628
De Luna, P., Quintero-Bermudez, R., Dinh, C.-T., Ross, M. B., Bushuyev, O. S., Todorović, P., Regier, T., Kelley, S. O., Yang, P., & Sargent, E. H. (2018) · Nature Catalysis · doi:10.1038/s41929-017-0018-9 · Cited by 1,046
Das, S., Pérez-Ramírez, J., Gong, J., Dewangan, N., Hidajat, K., Gates, B. C., & Kawi, S. (2020) · Chemical Society Reviews · doi:10.1039/c9cs00713j · Cited by 885
Surface and Interface Control in Nanoparticle Catalysis
Xie, C., Niu, Z., Kim, D., Li, M., & Yang, P. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00220 · Cited by 864
Metadata
- Authors
- Kwon, Y., Lum, Y., Clark, E. L., Ager, J. W., & Bell, A. T.
- Venue
- ChemElectroChem
- Publisher
- Wiley
- Published
- 2016-04-23
- Volume
- 3
- Issue
- 6
- Pages
- 1012-1019
- ISSN
- 2196-0216 (ISSN-L)
- OpenAlex
- W2480341173
- Cited by
- 167
- References
- 7
- FWCI
- 4.38
- Type
- journal article
- Language
- en
- Open access
- closed
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