SURFACE-PROPERTIES OF RUTILE AND ITS MODIFIED FORM - PART 1 - SURFACECHARACTERISTICS STUDIED BY MEANS OF INVERSE GAS-CHROMATOGRAPHY

Citation
Vi. Bogillo et A. Voelkel, SURFACE-PROPERTIES OF RUTILE AND ITS MODIFIED FORM - PART 1 - SURFACECHARACTERISTICS STUDIED BY MEANS OF INVERSE GAS-CHROMATOGRAPHY, Journal of adhesion science and technology, 11(12), 1997, pp. 1513-1529
Citations number
42
ISSN journal
01694243
Volume
11
Issue
12
Year of publication
1997
Pages
1513 - 1529
Database
ISI
SICI code
0169-4243(1997)11:12<1513:SORAIM>2.0.ZU;2-7
Abstract
Molar adsorption free energies, adsorption enthalpies, and entropies o f n-alkanes (C6-C10) and eight polar compounds possessing different do nor-acceptor properties on the surface of titanium dioxide (rutile for m) and TiO2, modified by sequential coating with amorphous Al2O3 (4% w /w) and SiO2 (2% w/w) were measured by inverse gas chromatography. It has been established that modification of the rutile surface leads to an increase of the dispersive component of the surface free energy as well as of the donor and acceptor characteristics of the solid and its relative acidity.