| DOI | Trouver le DOI : https://doi.org/10.1021/acs.jpcc.1c08430 |
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| Auteur | Rechercher : Mardle, PeterIdentifiant ORCID : https://orcid.org/0000-0002-0088-2109; Rechercher : Cassegrain, SimonIdentifiant ORCID : https://orcid.org/0000-0002-9348-0503; Rechercher : Habibzadeh, FaezehIdentifiant ORCID : https://orcid.org/0000-0002-5140-2443; Rechercher : Shi, Zhiqing1Identifiant ORCID : https://orcid.org/0000-0002-7929-945X; Rechercher : Holdcroft, Steven1Identifiant ORCID : https://orcid.org/0000-0002-1653-1047 |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
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| Bailleur de fonds | Rechercher : National Research Council of Canada |
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| Format | Texte, Article |
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| Sujet | electrical properties; electrochemical cells; electrodes; inorganic carbon compounds; ions |
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| Résumé | A room-temperature zero-gap, KOH anolyte CO₂ electrolyzer demonstrating 40% energetic conversion efficiency (EE) for CO₂ to CO using AEMION anion-exchange membranes is achieved at an industrially relevant current density of 200 mA cm⁻². The concentration and volume of the anolyte are found to be critical to the determination of EE as carbonate ion crossover is shown to cause a significant increase in ECell during continuous operation. Using thicker and/or lower ion-exchange capacity variant membranes results in an approximately 20% reduction in carbonate ion crossover, which is critical for the economic viability of direct CO₂ electrolysis systems. It is proposed that future membrane designs must reduce carbonate crossover without compromising the electrolyzer efficiency and stability. |
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| Date de publication | 2021-11-15 |
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| Maison d’édition | American Chemical Society |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | bf02bb31-50e9-4047-a5ef-62bd80a934bc |
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| Enregistrement créé | 2023-01-04 |
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| Enregistrement modifié | 2023-03-16 |
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