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Cited by 338

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Cascade CO2 electroreduction enables efficient carbonate-free production of ethylene

Open access
Ozden, Adnan, Wang, Yuhang, Li, Fengwang, Luo, Mingchuan, Sisler, Jared, Thevenon, Arnaud, Rosas-Hernández, Alonso, Burdyny, Thomas, Lum, Yanwei, Yadegari, Hossein, Agapie, Theodor, Peters, Jonas C., Sargent, Edward H., Sinton, David·2021·Joule

Abstract

Summary CO2 electroreduction provides a route to convert waste emissions into chemicals such as ethylene (C2H4). However, the direct transformation of CO2-to-C2H4 suffers from CO2 loss to carbonate, consuming up to 72% of energy input. A cascade approach—coupling a solid-oxide CO2-to-CO electrochemical cell (SOEC) with a CO-to-C2H4 membrane electrode assembly (MEA)—would eliminate CO2 loss to carbonate. However, this approach requires a CO-to-C2H4 MEA with energy efficiency well beyond demonstrations to date. Focusing on the MEA, we find that an N-tolyl substituted tetrahydro-bipyridine film improves the stabilization of key reaction intermediates, while an SSC ionomer enhances CO transport to the Cu surface, enabling a C2H4 faradaic efficiency of 65% at 150 mA cm−2 for 110 h. Demonstrating a cascade SOEC-MEA approach, we achieve CO2-to-C2H4 with a ~48% reduction in energy intensity compared with the direct route. We further reduce the energy intensity by coupling CO electroreduction (CORR) with glucose electrooxidation.

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Metadata

Authors
Ozden, A., Wang, Y., Li, F., Luo, M., Sisler, J., Thevenon, A., Rosas-Hernández, A., Burdyny, T., Lum, Y., Yadegari, H., Agapie, T., Peters, J. C., Sargent, E. H., & Sinton, D.
Venue
Joule
Publisher
Elsevier BV
Published
2021-03
Volume
5
Issue
3
Pages
706-719
ISSN
2542-4351 (ISSN-L)
OpenAlex
W3132233222
Cited by
338
References
4
FWCI
10.45
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Cascade CO2 electroreduction enables efficient carbonate-free production of ethylene. https://app.cochat.ai/papers/10.1016/j.joule.2021.01.007
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Ozden, A., Wang, Y., Li, F., Luo, M., Sisler, J., Thevenon, A., Rosas-Hernández, A., Burdyny, T., Lum, Y., Yadegari, H., Agapie, T., Peters, J. C., Sargent, E. H., & Sinton, D. (2021). Cascade CO2 electroreduction enables efficient carbonate-free production of ethylene. Joule. https://doi.org/10.1016/j.joule.2021.01.007

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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