The system tetraethoxysilane(TEOS)-water-ethanol has been studied by rheological measurements. Different molar ratios of TEOS : water (1 : 4, 1 : 10, and 1 : 20) are studied at different temperatures (30, 40, and 50 โข C). The dynamic viscosity (rotating mode) at a constant shear rate (100 s -1 ) and
On the determination of kinetic parameters of sol formation by rheological measurements
โ Scribed by Wolfram Vogelsberger; Johannes Opfermann; Ute Wank; Haike Schulze; Georg Rudakoff
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 730 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0927-7757
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Chronocoulometry is a better technique than chronoamperometry for determining kinetic parameters because the charge measurement contains information obtained at very short times where the amount of kinetic information in the data is greatest.
discussion of the theory and practical handling of low polarization data is presented. A consistent method involving a minimum number of assumptions is suggested for the determination of the electrochemical parameters. R&urn&On discute la thBorie et la pratique du domaine des basses polarisations.