Continuous carbon dioxide electroreduction to formate coupled with the single-pass glycerol oxidation to high value-added products

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Title: Continuous carbon dioxide electroreduction to formate coupled with the single-pass glycerol oxidation to high value-added products
Authors: Fernández-Caso, Kevin | Peña-Rodríguez, Ailen | Solla-Gullón, José | Montiel, Vicente | Díaz-Sainz, Guillermo | Alvarez-Guerra, Manuel | Irabien, Ángel
Research Group/s: Electroquímica Aplicada y Electrocatálisis
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: Continuous CO2 electroreduction | Formate | Single pass glycerol oxidation reaction | Dihydroxyacetone
Issue Date: 15-Feb-2023
Publisher: Elsevier
Citation: Journal of CO2 Utilization. 2023, 70: 102431. https://doi.org/10.1016/j.jcou.2023.102431
Abstract: CO2 electroreduction has been considered a promising alternative to simultaneously reduce CO2 emissions and produce value-added products. Among others, the production of formic acid/formate is particularly attractive. Although promising results have already been obtained in the literature, one of the recent approaches to improve the process deals with the use of an alternative reaction at the anode instead of the traditional oxygen evolution reaction (OER). In this context, this work reports, for the first time, the study of the CO2 electroreduction to formate coupled with the electrooxidation of glycerol to high-added value products where both half-reactions operate in a continuous mode with a single pass of the reactants through the electrochemical cell. Interestingly, at the cathode, similar results to those previously reported were obtained, reaching formate concentrations of about 18 g·L-1 at a 200 mA·cm-2. In addition, at the anode, promising dihydroxyacetone productions of 196 µmol·m-2·s-1 were simultaneously achieved in the output stream of the anodic compartment. These findings represent a significant step forward for the development and application of the technology.
Sponsor: The authors gratefully acknowledge financial support through projects PID2019–108136RB-C31, PID2019–108136RB-C32 and PID2020–112845RB-I00 (AEI/10.13039/501100011033).
URI: http://hdl.handle.net/10045/132166
ISSN: 2212-9820 (Print) | 2212-9839 (Online)
DOI: 10.1016/j.jcou.2023.102431
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Peer Review: si
Publisher version: https://doi.org/10.1016/j.jcou.2023.102431
Appears in Collections:INV - LEQA - Artículos de Revistas

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