Title :

Further insights on the thermal degradation of aluminum metaphosphate prepared from aluminum dihydrogen phosphate solution

Author(s) :

Rousseau, Guillaume [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Montagne, Lionel [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Mear, François [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

Journal of the European Ceramic Society

Abbreviated title :

Journal of the European Ceramic Society

Volume number :

41

Pages :

4970-4976

Publication date :

2021-08

ISSN :

09552219

HAL domain(s) :

Chimie/Chimie inorganique

English abstract : [en]

A study of the high temperature (up to 1200°C) degradation of aluminum metaphosphate Al(PO3)3 has been carried out to evaluate the stability of this compound used for many purposes. For the preparation of Al(PO3)3, an ...
Show more >A study of the high temperature (up to 1200°C) degradation of aluminum metaphosphate Al(PO3)3 has been carried out to evaluate the stability of this compound used for many purposes. For the preparation of Al(PO3)3, an aluminum dihydrogen-phosphate Al(H2PO4)3 solution has been heated at 700°C. Thermal degradation of Al(PO3)3 has been followed through the measurement of weight loss on isothermal mode at 1000 and 1200°C and by thermogravimetric analysis coupled with mass spectroscopy (TGA-MS). Structural data have been obtained by 27Al, 31P and 1H MAS NMR spectroscopy. NMR analyses have shown that [A] and [B] allotropic forms of Al(PO3)3 are formed after the preparation procedure. In addition, NMR revealed that hydroxyls groups are also present in the sample, and they form P-OH groups. TGA-MS showed that they are decomposed at a temperature of 875°C, while the decomposition of Al(PO3)3 into AlPO4 and P2O5 begins at 1000°C.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

RMN et matériaux inorganiques (RM2I)

Submission date :

2022-03-24T09:02:37Z
2023-11-29T08:49:01Z