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Reduction of Carbon Dioxide to Formate at Low Overpotential Using a Superbase Ionic Liquid

Open access
Hollingsworth, Nathan, Taylor, S. F. Rebecca, Galante, Miguel T., Jacquemin, Johan, Longo, Claudia, Holt, Katherine B., de Leeuw, Nora H., Hardacre, Christopher·2015·Angewandte Chemie International Edition

Abstract

A new low‐energy pathway is reported for the electrochemical reduction of CO 2 to formate and syngas at low overpotentials, utilizing a reactive ionic liquid as the solvent. The superbasic tetraalkyl phosphonium ionic liquid [P 66614][124Triz] is able to chemisorb CO 2 through equimolar binding of CO 2 with the 1,2,4‐triazole anion. This chemisorbed CO 2 can be reduced at silver electrodes at overpotentials as low as 0.17 V, forming formate. In contrast, physically absorbed CO 2 within the same ionic liquid or in ionic liquids where chemisorption is impossible (such as [P 66614][NTf 2]) undergoes reduction at significantly increased overpotentials, producing only CO as the product.

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Crossref · 10.1002/anie.201507629

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Metadata

Authors
Hollingsworth, N., Taylor, S. F. R., Galante, M. T., Jacquemin, J., Longo, C., Holt, K. B., de Leeuw, N. H., & Hardacre, C.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2015-09-25
Volume
54
Issue
47
Pages
14164-14168
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2119816877
Cited by
168
References
2
FWCI
5.96
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Reduction of Carbon Dioxide to Formate at Low Overpotential Using a Superbase Ionic Liquid. https://app.cochat.ai/papers/10.1002/anie.201507629
The paper
Hollingsworth, N., Taylor, S. F. R., Galante, M. T., Jacquemin, J., Longo, C., Holt, K. B., de Leeuw, N. H., & Hardacre, C. (2015). Reduction of Carbon Dioxide to Formate at Low Overpotential Using a Superbase Ionic Liquid. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201507629

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.