PTMS ON IRON AND ALUMINUM-OXIDE SURFACES - A STUDY OF DAMPED ADSORPTION-KINETICS

Authors
QUINTON J DASTOOR P ALLISON W
Citation
J. Quinton et al., PTMS ON IRON AND ALUMINUM-OXIDE SURFACES - A STUDY OF DAMPED ADSORPTION-KINETICS, Surface science, 404(1-3), 1998, pp. 66-70
Citations number
9
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
404
Issue
1-3
Year of publication
1998
Pages
66 - 70
Database
ISI
SICI code
0039-6028(1998)404:1-3<66:POIAAS>2.0.ZU;2-A
Abstract
The kinetic precesses taking place during the adsorption of propyltrim ethoxysilane (PTMS) onto polycrystalline iron and aluminium oxide surf aces have been investigated using X-ray photoelectron spectroscopy. Al though the adsorption of PTMS on iron reaches equilibrium within a few seconds, the adsorption of PTMS on aluminium exhibits a dramatic time dependence. The presence of a single oscillation in the adsorbate cov erage as a function of time indicates the existence of two distinct su rface species, each of whose coverage varies dynamically, confirming t he predictions of an earlier model. (C) 1998 Elsevier Science B.V. All rights reserved.