Solid state NMR study of phosphosilicate gels

N. J. Clayden; A. Aronne; S. Esposito; P. Pernice

doi:10.1016/j.jnoncrysol.2004.08.105

Solid state NMR study of phosphosilicate gels

N. J. Clayden, A. Aronne, S. Esposito, P. Pernice

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28 Citations (Scopus)

Abstract

Solid state Si-29, P-31 and H-1 MAS-NMR were used to investigate structural aspects of gel-derived glasses of molar composition 10P(2)O(5).90SiO(2) (10P) and 30P(2)O(5) . 70SiO(2) (30P). P-31 MAS-NMR spectra of the 10P and 30P gels dried at 100degreesC show resonances characteristic of orthophosphoric and pyrophosphoric acid. No evidence for cross-linking with silicate matrix was found by 29Si NMR at this temperature while H-1 MAS-NMR experiments suggest that the chemical environment of OH groups is very similar in these samples. In spite of this initial similarity further heating causes markedly different structural rearrangements of the 10P and 30P gel matrix. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	601-604
Number of pages	4
Journal	Journal of Non-Crystalline Solids
Volume	345
DOIs	https://doi.org/10.1016/j.jnoncrysol.2004.08.105
Publication status	Published - 2004
Event	10th International Conference on the Physics of Non-Crystalline Solids - University of Parma, Parma, Italy Duration: 13 Jul 2003 → 17 Jul 2003

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10.1016/j.jnoncrysol.2004.08.105

Cite this

@article{8a36b0a7304046429315820c7de2dcce,

title = "Solid state NMR study of phosphosilicate gels",

abstract = "Solid state Si-29, P-31 and H-1 MAS-NMR were used to investigate structural aspects of gel-derived glasses of molar composition 10P(2)O(5).90SiO(2) (10P) and 30P(2)O(5) . 70SiO(2) (30P). P-31 MAS-NMR spectra of the 10P and 30P gels dried at 100degreesC show resonances characteristic of orthophosphoric and pyrophosphoric acid. No evidence for cross-linking with silicate matrix was found by 29Si NMR at this temperature while H-1 MAS-NMR experiments suggest that the chemical environment of OH groups is very similar in these samples. In spite of this initial similarity further heating causes markedly different structural rearrangements of the 10P and 30P gel matrix. (C) 2004 Elsevier B.V. All rights reserved.",

author = "Clayden, {N. J.} and A. Aronne and S. Esposito and P. Pernice",

year = "2004",

doi = "10.1016/j.jnoncrysol.2004.08.105",

language = "English",

volume = "345",

pages = "601--604",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

note = "10th International Conference on the Physics of Non-Crystalline Solids ; Conference date: 13-07-2003 Through 17-07-2003",

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TY - JOUR

T1 - Solid state NMR study of phosphosilicate gels

AU - Clayden, N. J.

AU - Aronne, A.

AU - Esposito, S.

AU - Pernice, P.

PY - 2004

Y1 - 2004

N2 - Solid state Si-29, P-31 and H-1 MAS-NMR were used to investigate structural aspects of gel-derived glasses of molar composition 10P(2)O(5).90SiO(2) (10P) and 30P(2)O(5) . 70SiO(2) (30P). P-31 MAS-NMR spectra of the 10P and 30P gels dried at 100degreesC show resonances characteristic of orthophosphoric and pyrophosphoric acid. No evidence for cross-linking with silicate matrix was found by 29Si NMR at this temperature while H-1 MAS-NMR experiments suggest that the chemical environment of OH groups is very similar in these samples. In spite of this initial similarity further heating causes markedly different structural rearrangements of the 10P and 30P gel matrix. (C) 2004 Elsevier B.V. All rights reserved.

AB - Solid state Si-29, P-31 and H-1 MAS-NMR were used to investigate structural aspects of gel-derived glasses of molar composition 10P(2)O(5).90SiO(2) (10P) and 30P(2)O(5) . 70SiO(2) (30P). P-31 MAS-NMR spectra of the 10P and 30P gels dried at 100degreesC show resonances characteristic of orthophosphoric and pyrophosphoric acid. No evidence for cross-linking with silicate matrix was found by 29Si NMR at this temperature while H-1 MAS-NMR experiments suggest that the chemical environment of OH groups is very similar in these samples. In spite of this initial similarity further heating causes markedly different structural rearrangements of the 10P and 30P gel matrix. (C) 2004 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.jnoncrysol.2004.08.105

DO - 10.1016/j.jnoncrysol.2004.08.105

M3 - Article

VL - 345

SP - 601

EP - 604

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

T2 - 10th International Conference on the Physics of Non-Crystalline Solids

Y2 - 13 July 2003 through 17 July 2003

ER -