The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
Improved CO2 Electroreduction Performance on Plasma-Activated Cu Catalysts via Electrolyte Design: Halide Effect
Abstract
As a sustainable pathway for energy storage and to close the carbon cycle, CO 2 electroreduction has recently gained significant interest. We report here the role of the electrolyte, in particular of halide ions, on CO 2 electroreduction over plasma-oxidized polycrystalline Cu foils. It was observed that halide ions such as I – can induce significant nanostructuring of the oxidized Cu surface, even at open circuit potential, including the formation of Cu crystals with well-defined shapes. Furthermore, the presence of Cl –, Br –, and I – was found to lower the overpotential and to increase the CO 2 electroreduction rate on plasma-activated preoxidized Cu catalyst in the order Cl – < Br – < I –, without sacrificing their intrinsically high C 2 –C 3 product selectivity (∼65% total Faradaic efficiency at −1.0 V vs RHE). This enhancement in catalytic performance is mainly attributed to the specific adsorption of halides with a higher coverage on our oxidized Cu surface during the reaction, which have been previously reported to facilitate the formation and stabilization of the carboxyl (*COOH) intermediate by partial charge donation from the halide ions to CO 2 .
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Cites
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Electrocatalysis for CO 2 conversion: from fundamentals to value-added products
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Arán-Ais, R. M., Scholten, F., Kunze, S., Rizo, R., & Roldan Cuenya, B. (2020) · Nature Energy · doi:10.1038/s41560-020-0594-9 · Cited by 771
Self-citation
Metadata
- Authors
- Gao, D., Scholten, F., & Roldan Cuenya, B.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-07-07
- Volume
- 7
- Issue
- 8
- Pages
- 5112-5120
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2698517883
- Cited by
- 338
- References
- 16
- FWCI
- 6.05
- Type
- journal article
- Language
- en
- Open access
- closed
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