sup 2 sup 9 Si MAS-NMR investigations of silica aerogels

sup 2 sup 9 Si MAS-NMR investigations of silica aerogels

Aerogels are prepared from TMOS at pH 1- 13. Distribution of structural units is studied. Percentage of Q sup 4 units and their linewidth at half height increase with pH.

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Veröffentlicht in:Journal of non-crystalline solids 1992-01, Vol.145 (1-3), p.164-167
Hauptverfasser: Damrau, U, Marsmann, H C, Spormann, O
Format: Artikel
Sprache:eng
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Zusammenfassung:Aerogels are prepared from TMOS at pH 1- 13. Distribution of structural units is studied. Percentage of Q sup 4 units and their linewidth at half height increase with pH.
ISSN:0022-3093