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One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules

[Image: see text] To design efficient CO(2) capture materials, it is necessary to ensure a high adsorption capacity. We recently reported that one Na(+) site in NaY zeolite can attach two CO(2) molecules. However, the process is not suitable for practical use because it proceeds at a low temperature...

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Autores principales: Drenchev, Nikola L., Ivanova, Elena Z., Mihaylov, Mihail Y., Aleksandrov, Hristiyan A., Vayssilov, Georgi N., Hadjiivanov, Konstantin I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9940206/
https://www.ncbi.nlm.nih.gov/pubmed/36745575
http://dx.doi.org/10.1021/acs.jpclett.2c03294
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author Drenchev, Nikola L.
Ivanova, Elena Z.
Mihaylov, Mihail Y.
Aleksandrov, Hristiyan A.
Vayssilov, Georgi N.
Hadjiivanov, Konstantin I.
author_facet Drenchev, Nikola L.
Ivanova, Elena Z.
Mihaylov, Mihail Y.
Aleksandrov, Hristiyan A.
Vayssilov, Georgi N.
Hadjiivanov, Konstantin I.
author_sort Drenchev, Nikola L.
collection PubMed
description [Image: see text] To design efficient CO(2) capture materials, it is necessary to ensure a high adsorption capacity. We recently reported that one Na(+) site in NaY zeolite can attach two CO(2) molecules. However, the process is not suitable for practical use because it proceeds at a low temperature. Here, we present results on CO(2) adsorption on CaNaY zeolites, demonstrating that one Ca(2+) site can attach three CO(2) molecules. The ν(3)((13)CO(2)) mode arising from the natural (13)C abundance allows for easy infrared monitoring of the processes: it appears at 2298, 2294, and 2291 cm(–1) for the complexes with one, two, and three CO(2) ligands, respectively. The (12)CO(2) molecules in the polyligand complexes interact vibrationally, leading to the split of the ν(3)((12)CO(2)) modes. At ambient temperature, Ca(2+)(CO(2))(2) complexes predominate at >1 mbar CO(2) and triligand species begin to form at 65 mbar. The obtained results show that CaY zeolites can be very effective CO(2) capture materials.
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spelling pubmed-99402062023-02-21 One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules Drenchev, Nikola L. Ivanova, Elena Z. Mihaylov, Mihail Y. Aleksandrov, Hristiyan A. Vayssilov, Georgi N. Hadjiivanov, Konstantin I. J Phys Chem Lett [Image: see text] To design efficient CO(2) capture materials, it is necessary to ensure a high adsorption capacity. We recently reported that one Na(+) site in NaY zeolite can attach two CO(2) molecules. However, the process is not suitable for practical use because it proceeds at a low temperature. Here, we present results on CO(2) adsorption on CaNaY zeolites, demonstrating that one Ca(2+) site can attach three CO(2) molecules. The ν(3)((13)CO(2)) mode arising from the natural (13)C abundance allows for easy infrared monitoring of the processes: it appears at 2298, 2294, and 2291 cm(–1) for the complexes with one, two, and three CO(2) ligands, respectively. The (12)CO(2) molecules in the polyligand complexes interact vibrationally, leading to the split of the ν(3)((12)CO(2)) modes. At ambient temperature, Ca(2+)(CO(2))(2) complexes predominate at >1 mbar CO(2) and triligand species begin to form at 65 mbar. The obtained results show that CaY zeolites can be very effective CO(2) capture materials. American Chemical Society 2023-02-06 /pmc/articles/PMC9940206/ /pubmed/36745575 http://dx.doi.org/10.1021/acs.jpclett.2c03294 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Drenchev, Nikola L.
Ivanova, Elena Z.
Mihaylov, Mihail Y.
Aleksandrov, Hristiyan A.
Vayssilov, Georgi N.
Hadjiivanov, Konstantin I.
One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title_full One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title_fullStr One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title_full_unstemmed One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title_short One Ca(2+) Site in CaNaY Zeolite Can Attach Three CO(2) Molecules
title_sort one ca(2+) site in canay zeolite can attach three co(2) molecules
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9940206/
https://www.ncbi.nlm.nih.gov/pubmed/36745575
http://dx.doi.org/10.1021/acs.jpclett.2c03294
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