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

J. Quinton, P. Dastoor, W. Allison

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The kinetic processes 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.

Original languageEnglish
Pages (from-to)66-70
Number of pages5
JournalSurface Science
Volume402-404
DOIs
Publication statusPublished - 15 May 1998
Externally publishedYes

Keywords

  • Adhesion
  • Metal oxide surfaces
  • Organosilanes
  • Surface kinetics

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