Raman study of alumina gels

The sol was made by the hydrolysis of aluminium secondary butoxide. Progression through wet gel, dry gel, transition alumina to alpha-alumina was studied by Raman spectroscopy, infra-red-spectroscopy, NMR and XRD. In particular, 27Al NMR has shown that the sol contains aluminium polycations which ar...

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Veröffentlicht in:	Journal of materials science 1988-09, Vol.23 (9), p.3326-3331, Article 3326
Hauptverfasser:	ASSIH, T, AYRAL, A, ABENOZA, M, PHALIPPOU, J
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Exact sciences and technology Technical ceramics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The sol was made by the hydrolysis of aluminium secondary butoxide. Progression through wet gel, dry gel, transition alumina to alpha-alumina was studied by Raman spectroscopy, infra-red-spectroscopy, NMR and XRD. In particular, 27Al NMR has shown that the sol contains aluminium polycations which are adsorbed at the surfaces of colloidal pseudo-boehmite particles and can play a role in the stabilization of the sol. 26 refs.
ISSN:	1573-4803 0022-2461 1573-4803
DOI:	10.1007/bf00551313