The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Morphology Matters: Tuning the Product Distribution of CO2 Electroreduction on Oxide-Derived Cu Foam Catalysts
Abstract
Mesoporous Cu foams formed by a template-assisted electrodeposition process have been identified as CO 2 electrocatalysts that are highly selective toward C2 product formation (C 2 H 4 and C 2 H 6 ) with C2 efficiencies (FE C2 ) reaching 55%. The partial current of C2 product formation was found to be higher than that of the (parasitic) hydrogen evolution reaction (HER) at any potential studied (−0.4 to −1.0 vs the reversible hydrogen electrode). Moreover, formate production could largely be suppressed at any applied potential down to efficiencies (FE formate ) of ≤6%. A key point of the Cu foam catalyst activation is the in operando reduction of a Cu 2 O phase, thereby creating a large abundance of surface sites active for C–C coupling. The cuprous oxide phase has been formed after the Cu electrodeposition step by exposing the large-surface area catalyst to air at room temperature. The superior selectivity of the Cu foam catalyst studied herein originates from a combination of two effects, the availability of specific surface sites for C–C coupling [dominant (100) surface texture] and the temporal trapping of gaseous intermediates (in particular CO and C 2 H 4 ) inside the mesoporous catalyst material during CO 2 electrolysis. A systematic CO 2 electrolysis study reveals a strong dependence of the C2 efficiencies on the particular surface pore size of the mesoporous Cu catalysts with a maximal FE C2 between 50 and 100 μm pore diameters.
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Cites
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Probing the Active Surface Sites for CO Reduction on Oxide-Derived Copper 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
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles
Liu, L., & Corma, A. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00776 · Cited by 4,777
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
What Should We Make with CO2 and How Can We Make It?
Bushuyev, O. S., De Luna, P., Dinh, C. T., Tao, L., Saur, G., van de Lagemaat, J., Kelley, S. O., & Sargent, E. H. (2018) · Joule · doi:10.1016/j.joule.2017.09.003 · Cited by 1,593
Designing materials for electrochemical carbon dioxide recycling
Ross, M. B., De Luna, P., Li, Y., Dinh, C.-T., Kim, D., Yang, P., & Sargent, E. H. (2019) · Nature Catalysis · doi:10.1038/s41929-019-0306-7 · Cited by 1,302
Metadata
- Authors
- Dutta, A., Rahaman, M., Luedi, N. C., Mohos, M., & Broekmann, P.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-05-16
- Volume
- 6
- Issue
- 6
- Pages
- 3804-3814
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2346642582
- Cited by
- 450
- References
- 9
- FWCI
- 12.60
- Type
- journal article
- Language
- en
- Open access
- closed
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