The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper
Open accessAbstract
We present a microkinetic model for CO(2) reduction (CO(2)R) on Cu(211) towards C 2 products, based on energetics estimated from an explicit solvent model. We show that the differences in both Tafel slopes and pH dependence for C 1 vs C 2 activity arise from differences in their multi-step mechanisms. We find the depletion in C 2 products observed at high overpotential and high pH to arise from the 2 nd order dependence of C-C coupling on CO coverage, which decreases due to competition from the C 1 pathway. We further demonstrate that CO(2) reduction at a fixed pH yield similar activities, due to the facile kinetics for CO 2 reduction to CO on Cu, which suggests C 2 products to be favored for CO 2 R under alkaline conditions. The mechanistic insights of this work elucidate how reaction conditions can lead to significant enhancements in selectivity and activity towards higher value C 2 products.
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Designing materials for electrochemical carbon dioxide recycling
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Electrocatalytic reduction of CO2 and CO to multi-carbon compounds over Cu-based catalysts
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Metadata
- Authors
- Liu, X., Schlexer, P., Xiao, J., Ji, Y., Wang, L., Sandberg, R. B., Tang, M., Brown, K. S., Peng, H., Ringe, S., Hahn, C., Jaramillo, T. F., Nørskov, J. K., & Chan, K.
- Venue
- Nature Communications
- Published
- 2019-01-03
- Volume
- 10
- Issue
- 1
- Pages
- 32-32
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2907129960
- Cited by
- 607
- References
- 16
- FWCI
- 10.80
- Type
- journal article
- Language
- en
- Open access
- gold
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- Liu, X., Schlexer, P., Xiao, J., Ji, Y., Wang, L., Sandberg, R. B., Tang, M., Brown, K. S., Peng, H., Ringe, S., Hahn, C., Jaramillo, T. F., Nørskov, J. K., & Chan, K. (2019). pH effects on the electrochemical reduction of CO(2) towards C2 products on stepped copper. Nature Communications. https://doi.org/10.1038/s41467-018-07970-9
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