The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Tuning the Catalytic Activity and Selectivity of Cu for CO2 Electroreduction in the Presence of Halides
Abstract
In the present study we demonstrate that the activity and selectivity of copper during CO 2 electrochemical reduction can be tuned by simply adding halides to the electrolyte. Comparing the production rate and Faradaic selectivity of the major products as a function the working potential in the presence of Cl –, Br –, and I –, we show that the activity and selectivity of Cu depends on the concentration and nature of the added halide. We find that the addition Cl – and Br – results in an increased CO selectivity. On the contrary, in the presence of I – the selectivity toward CO drops down and instead methane formation is enhanced up to 6 times compared with the halide-free electrolyte. Even though Br – and I – can induce morphology changes of the surface, the modification in the catalytic performance of Cu is mainly attributed to halides adsorption on the Cu surface. We hypothesizes that the adsorption of halides alters the catalytic performance of Cu by increasing the negative charge on the surface according to the following order: Cl – < Br – < I – . In the case of adsorbed I –, the induced negative charge has a remarkably positive effect favoring the protonation of CO. These results present an easy way to enhance CH 4 production during the CO2RR on Cu. Furthermore, understanding this effect can contribute to the design of new and more efficient catalysts.
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Cites
How copper catalyzes the electroreduction of carbon dioxide into hydrocarbon fuels
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New insights into the electrochemical reduction of carbon dioxide on metallic copper surfaces
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Electrocatalytic Conversion of Carbon Dioxide to Methane and Methanol on Transition Metal Surfaces
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Active and Selective Conversion of CO 2 to CO on Ultrathin Au Nanowires
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Competition between CO 2 Reduction and H 2 Evolution on Transition-Metal Electrocatalysts
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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
Advances and challenges in understanding the electrocatalytic conversion of carbon dioxide to fuels
Birdja, Y. Y., Pérez-Gallent, E., Figueiredo, M. C., Göttle, A. J., Calle-Vallejo, F., & Koper, M. T. M. (2019) · Nature Energy · doi:10.1038/s41560-019-0450-y · Cited by 2,747
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
Ma, W., Xie, S., Liu, T., Fan, Q., Ye, J., Sun, F., Jiang, Z., Zhang, Q., Cheng, J., & Wang, Y. (2020) · Nature Catalysis · doi:10.1038/s41929-020-0450-0 · Cited by 1,468
Kibria, M. G., Edwards, J. P., Gabardo, C. M., Dinh, C., Seifitokaldani, A., Sinton, D., & Sargent, E. H. (2019) · Advanced Materials · doi:10.1002/adma.201807166 · Cited by 1,331
Metadata
- Authors
- Varela, A. S., Ju, W., Reier, T., & Strasser, P.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-02-26
- Volume
- 6
- Issue
- 4
- Pages
- 2136-2144
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2275870655
- Cited by
- 489
- References
- 8
- FWCI
- 10.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Varela, A. S., Ju, W., Reier, T., & Strasser, P. (2016). Tuning the Catalytic Activity and Selectivity of Cu for CO2 Electroreduction in the Presence of Halides. ACS Catalysis. https://doi.org/10.1021/acscatal.5b02550
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