Hydrolysis of Titanium Alkoxides: Thermochemical, Electron Microscopy, Saxs Studies

Hydrolysis of Ti(OR)4 (R = Et, iPr, nBu) at various concentrations of titanium alkoxides and ratios h = [H2O] /[Ti(OR)4] is studied in alcoholic medium by means of calorimetry, electron microscopy, SAXS, and chemical analysis. The measured values for heat of hydrolysis of Ti(OR)4 by excess water (−Δ...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2001-03, Vol.20 (3), p.245-262
Main Authors: Golubko, N V, Yanovskaya, MI, Romm, I P, AN Ozerin
Format: Article
Language:English
Subjects:
Alkoxides
Ceramic powders
Chemical analysis
Electron microscopy
Grain growth
Hydrolysis
Microscopy
Morphology
Organic chemistry
Particle size distribution
Sintering (powder metallurgy)
Small angle X ray scattering
Titanium
Titanium oxides
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Summary:Hydrolysis of Ti(OR)4 (R = Et, iPr, nBu) at various concentrations of titanium alkoxides and ratios h = [H2O] /[Ti(OR)4] is studied in alcoholic medium by means of calorimetry, electron microscopy, SAXS, and chemical analysis. The measured values for heat of hydrolysis of Ti(OR)4 by excess water (−Δ Hh) at 298.15 K comprise 14.2, 64.9, 19.3 kJ/mol for R = Et, R = Et, iPr, nBu respectively. −Δ Hh increases drastically in the region of 0
ISSN:0928-0707
1573-4846
DOI:10.1023/A:1008769918083