High Performance Fe Porphyrin/Ionic Liquid Co-catalyst for Electrochemical CO2 Reduction
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Benedetti, Tania M
Jalili, Rouhollah
Walker, Ashley
Wallace, Gordon G
Officer, David L
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Abstract
The efficient and selective catalytic reduction of CO2is a highly promising process for both of the storage of renewable energy as well as the production of valuable chemical feedstocks. In this work, we show that the addition of an ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate, in an aprotic electrolyte containing a proton source and FeTPP, promotes the in situ formation of the [Fe0TPP]2−homogeneous catalyst at a less negative potential, resulting in lower overpotentials for the CO2reduction (670 mV) and increased kinetics of electron transfer. This co-catalysis exhibits high Faradaic efficiency for CO production (93 %) and turnover number (2 740 000 after 4 hour electrolysis), with a four-fold increase in turnover frequency (TOF) when compared with the standard system without the ionic liquid.
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Chemistry – A European Journal
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22
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40
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© 2016 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: High Performance Fe Porphyrin/Ionic Liquid Co-catalyst for Electrochemical CO2 Reduction, Chemistry – A European Journal, 2016, 22 (40), pp. 14158-14161, which has been published in final form at https://doi.org/10.1002/chem.201603359. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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Chemical sciences
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
carbon dioxide reduction
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Choi, J; Benedetti, TM; Jalili, R; Walker, A; Wallace, GG; Officer, DL, High Performance Fe Porphyrin/Ionic Liquid Co-catalyst for Electrochemical CO2 Reduction, Chemistry – A European Journal, 2016, 22 (40), pp. 14158-14161