CO <sub>2</sub> electrolysis to multicarbon products in strong acid
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- Teacher spread
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Abstract
Potassium helps CO 2 compete in acid Electrochemical reduction of carbon dioxide (CO 2 ) is a promising means of converting this greenhouse gas into valuable fuels and chemicals. However, two competing reactions restrict the efficiency of this process. In base, much of the CO 2 is trapped as carbonate before reduction; in acid, protons outpace CO 2 at catching electrons from the cathode. Huang et al. report that a high dose of potassium ions can help to solve the latter problem. By concentrating potassium ions at the electrode, high selectivity toward CO 2 reduction at high current in acid is possible, which the authors attribute to electrostatic stabilization of the desired adsorbates. Science , abg6582, this issue p. 1074
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The record
- Venue
- Science
- Topic
- CO2 Reduction Techniques and Catalysts
- Field
- Energy
- Canadian institutions
- University of Toronto
- Funders
- Australian Research CouncilArgonne National LaboratoryNatural Sciences and Engineering Research Council of CanadaOffice of ScienceOntario Research Foundation
- Keywords
- ElectrolysisChemistryEnvironmental scienceElectrodeElectrolyte
- Has abstract in OpenAlex
- yes