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

Tricot, Grégory

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1021/acs.jpcc.0c10723

Permalink :

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

Title :

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

Author(s) :

Tricot, Grégory [Auteur]

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

Journal title :

Journal of Physical Chemistry C

Volume number :

125

Pages :

9210-9218

Publication date :

2021

English keyword(s) :

Amorphous materials
Nuclear magnetic resonance spectroscopy
Organic reactions
Phosphates
Zinc

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Audience :

Non spécifiée

Popular science :

Non

Administrative institution(s) :

ENSCL
CNRS
Université de Lille

Collections :

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

Research team(s) :

Propriétés magnéto structurales des matériaux (PMSM)

Submission date :

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

Version	Link	Modification date
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