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Abstract Converting CO2into industrially useful products is an appealing strategy for utilization of an abundant chemical resource. Electrochemical CO2reduction (eCO2R) offers a pathway to convert CO2into CO and ethylene, using renewable electricity. These products can be efficiently copolymerized by organometallic catalysts to generate polyketones. However, the conditions for these reactions are very different, presenting the challenge of coupling microenvironments typically encountered for the transformation of CO2into highly complex but desirable multicarbon products. Herein, we present a system to produce polyketone plastics entirely derived from CO2and water, where both the CO and C2H4intermediates are produced by eCO2R. In this system, a combination of Cu and Ag gas diffusion electrodes is used to generate a gas mixture with nearly equal concentrations of CO and C2H4, and a recirculatory CO2reduction loop is used to reach concentrations of above 11% each, leading to a current‐to‐polymer efficiency of up to 51% and CO2utilization of 14%.
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Reactive capture and electrochemical conversion of CO 2 with ionic liquids and deep eutectic solvents
Ionic liquids (ILs) and deep eutectic solvents (DESs) have tremendous potential for reactive capture of CO2, due to their highly properties, including a wide electrochemical stability window, low volatility, and high CO2solubility.
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- Award ID(s):
- 2045111
- PAR ID:
- 10532521
- Author(s) / Creator(s):
- ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »
- Publisher / Repository:
- Royal Society of Chemistry
- Date Published:
- Journal Name:
- Chemical Society Reviews
- ISSN:
- 0306-0012
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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