Probing oxygen exchange between UiO-66(Zr) ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
PMID :
URL permanente :
Titre :
Probing oxygen exchange between UiO-66(Zr) MOF and water using 17O solid-state NMR
Auteur(s) :
Venel, Florian [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Giovine, Raynald [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Laurencin, Danielle [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Špačková, Jessica [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Mittelette, Sébastien [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Métro, Thomas-Xavier [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Volkringer, Christophe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lafon, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Pourpoint, Frederique [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Giovine, Raynald [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Laurencin, Danielle [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Špačková, Jessica [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Mittelette, Sébastien [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Métro, Thomas-Xavier [Auteur]
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
Volkringer, Christophe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lafon, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Pourpoint, Frederique [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
Chemistry - A European Journal
Numéro :
30
Pagination :
e202302731
Date de publication :
2024-01-21
ISSN :
1521-3765
Mot(s)-clé(s) en anglais :
Zr-O bond
water
solid-state NMR
mechanochemistry
O-17
UiO-66
water
solid-state NMR
mechanochemistry
O-17
UiO-66
Discipline(s) HAL :
Chimie/Chimie inorganique
Résumé en anglais : [en]
The Zr-based Metal Organic Framework (MOF) UiO-66(Zr) is widely employed owing to its good thermal and chemical stabilities. Although the long-range structure of this MOF is preserved in the presence of water during several ...
Lire la suite >The Zr-based Metal Organic Framework (MOF) UiO-66(Zr) is widely employed owing to its good thermal and chemical stabilities. Although the long-range structure of this MOF is preserved in the presence of water during several days, little is known about the formation of defects, which cannot be detected using diffraction techniques. We apply here 17O solid-state NMR spectroscopy at 18.8 T to investigate the reactivity of UiO-66, through the exchange of oxygen atoms between the different sites of the MOF and water. For that purpose, we have selectively enriched in 17O isotope the carboxylate groups of UiO-66(Zr) by using it with 17O-labeled terephthalic acid prepared using mechanochemistry. In the presence of water at 50 °C and a following dehydration at 150 °C, we observe an overall exchange of O atoms between COO− and μ3-O2− sites. Furthermore, we demonstrate that the three distinct oxygen sites, μ3-OH, μ3-O2− and COO−, of UiO-66(Zr) MOF can be enriched in 17O isotope by post-synthetic hydrothermal treatment in the presence of 17O-enriched water. These results demonstrate the lability of Zr−O bonds and the reactivity of UiO-66(Zr) with water.Lire moins >
Lire la suite >The Zr-based Metal Organic Framework (MOF) UiO-66(Zr) is widely employed owing to its good thermal and chemical stabilities. Although the long-range structure of this MOF is preserved in the presence of water during several days, little is known about the formation of defects, which cannot be detected using diffraction techniques. We apply here 17O solid-state NMR spectroscopy at 18.8 T to investigate the reactivity of UiO-66, through the exchange of oxygen atoms between the different sites of the MOF and water. For that purpose, we have selectively enriched in 17O isotope the carboxylate groups of UiO-66(Zr) by using it with 17O-labeled terephthalic acid prepared using mechanochemistry. In the presence of water at 50 °C and a following dehydration at 150 °C, we observe an overall exchange of O atoms between COO− and μ3-O2− sites. Furthermore, we demonstrate that the three distinct oxygen sites, μ3-OH, μ3-O2− and COO−, of UiO-66(Zr) MOF can be enriched in 17O isotope by post-synthetic hydrothermal treatment in the presence of 17O-enriched water. These results demonstrate the lability of Zr−O bonds and the reactivity of UiO-66(Zr) with water.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Projet Européen :
Établissement(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Équipe(s) de recherche :
Matériaux hybrides (MATHYB)
RMN et matériaux inorganiques (RM2I)
RMN et matériaux inorganiques (RM2I)
Date de dépôt :
2024-02-16T22:01:15Z
2024-02-27T13:50:49Z
2024-02-27T13:50:49Z
Fichiers
- Chemistry A European J - 2024 - Venel - Probing oxygen exchange between UiO‐66 Zr MOF and water using 17O solid‐state NMR.pdf
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