PTMS on iron and aluminium oxide surfaces: a study of damped adsorption kinetics

被引：17

作者：

Quinton, J

Dastoor, P ^{[1
]}

Allison, W

机构：

[1] Univ Newcastle, Dept Phys, Callaghan, NSW 2308, Australia

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

SURFACE SCIENCE | 1998年 / 402卷 / 1-3期

关键词：

adhesion; metal oxide surfaces; organosilanes; surface kinetics;

D O I：

10.1016/S0039-6028(97)01051-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetic precesses taking place during the adsorption of propyltrimethoxysilane (PTMS) onto polycrystalline iron and aluminium oxide surfaces have been investigated using X-ray photoelectron spectroscopy. Although 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 coverage as a function of time indicates the existence of two distinct surface species, each of whose coverage varies dynamically, confirming the predictions of an earlier model. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：66 / 70

页数：5

共 10 条

[1] THE CHEMISTRY OF ORGANOSILANE METAL-OXIDE INTERFACES - REACTION OF TRIMETHOXYSILANE ON MGO AND SIO2 SURFACES [J].