Insertion of al2o3 in zinc metaphosphate glasses: New insights from 1d/2d solid state nmr

Tricot, Grégory

Type de document :

Article dans une revue scientifique: Article original

DOI :

10.1021/acs.jpcc.0c10723

URL permanente :

http://hdl.handle.net/20.500.12210/108867

Titre :

Insertion of al2o3 in zinc metaphosphate glasses: New insights from 1d/2d solid state nmr

Auteur(s) :

Tricot, Grégory [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Titre de la revue :

Journal of Physical Chemistry C

Numéro :

125

Pagination :

9210-9218

Date de publication :

2021

Mot(s)-clé(s) en anglais :

Amorphous materials
Nuclear magnetic resonance spectroscopy
Organic reactions
Phosphates
Zinc

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

Insertion of Al2O3 in the widely used zinc metaphosphate glasses is investigated in this contribution thanks to a 1D/2D NMR protocol. Glasses formulated in the (50–x/2)ZnO–xAl2O3-(50–x/2)P2O5 composition line were analyzed ...
Lire la suite >Insertion of Al2O3 in the widely used zinc metaphosphate glasses is investigated in this contribution thanks to a 1D/2D NMR protocol. Glasses formulated in the (50–x/2)ZnO–xAl2O3-(50–x/2)P2O5 composition line were analyzed at 9.4 and 18.8 T to determine how Al atoms modify the glass network: (i) 1D 27Al MAS NMR and DQ–SQ NMR spectra were recorded at high field (18.8 T) to determine the [x]Al speciation and to detect the presence of Al–O–Al linkages; (ii) 1D 31P MAS NMR were recorded at 18.8 T and analyzed with the help of 2D 27Al(31P) HMQC maps in order to provide efficient and trustful numbering and identification of all the phosphate species present in the glass network; (iii) in addition to these 2D qualitative experiments, quantitative 27Al(31P) REDOR NMR experiments were performed at 9.4 T to quantify the 27Al/31P dipolar interaction and to determine the nature of the Al(OP)m groups. Altogether, the set of data allowed describing the local and intermediate length scale structures of the zinc aluminophosphate glasses. The model was then used to explain the nonlinear glass transition temperature modifications observed for this system.Lire moins >

Langue :

Anglais

Audience :

Non spécifiée

Vulgarisation :

Non

Établissement(s) :

ENSCL
CNRS
Université de Lille

Collections :

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Équipe(s) de recherche :

Propriétés magnéto structurales des matériaux (PMSM)

Date de dépôt :

2024-02-21T17:11:54Z
2024-02-26T14:17:53Z

Numéro de version	Lien	Date de modification
2	20.500.12210/108867*	2024-02-26T14:16:47Z
1	20.500.12210/108867.1	2024-02-21T17:11:54Z

Insertion of al2o3 in zinc metaphosphate ...

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Insertion of al2o3 in zinc metaphosphate ... BibTeX CSV Excel RIS

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Insertion of al2o3 in zinc metaphosphate ...

BibTeX

CSV

Excel

RIS