Sujatha Devi, P and Ganguli, Dibyendu (1998) Vanadyl ion stability in silica gels. Journal of Non-Crystalline Solids, 240 (1-3). pp. 50-54. ISSN 0022-3093

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Silica gels doped with vanadium were prepared from tetra ethyl orthosilicate and an aqueous solution of NH4VO3, at a final sol pH of 1.5-2.5. Absorption and electron paramagnetic resonance (EPR) spectral studies establish that under ambient conditions the incorporated pentavalent vanadium is stabilized as tetravalent vanadyl ion in the gel monoliths. Dried gels were very stable under ambient conditions, however, transformation of V4+ to V5+ was noted during gel densification. (C) 1998 Elsevier Science B.V. All rights reserved.

Item Type: Article
Subjects: Engineering Materials
Divisions: Sol Gel
Depositing User: Bidhan Chaudhuri
Date Deposited: 12 Jul 2012 07:25
Last Modified: 12 Jul 2012 07:25

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