Energetic Topography Effects on Mobile Adsorption on Heterogeneous Surfaces at Low Coverage

Mobile adsorption on heterogeneous surfaces at low coverage is modeled via a gas−solid virial expansion, following the ideas of the generalized Gaussian model6,12 to incorporate energetic topography effects. Adsorbate molecules interact among them via Lennard-Jones interactions. Model predictions ar...

Full description

Saved in:
Bibliographic Details
Published in:Langmuir 2003-08, Vol.19 (17), p.6737-6743
Main Authors: Nazzarro, M, Zgrablich, G
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mobile adsorption on heterogeneous surfaces at low coverage is modeled via a gas−solid virial expansion, following the ideas of the generalized Gaussian model6,12 to incorporate energetic topography effects. Adsorbate molecules interact among them via Lennard-Jones interactions. Model predictions are compared to Monte Carlo simulations of adsorption on heterogeneous solids obtained by doping a pure crystalline solid with different concentrations of impurities. Energetic topography effects are shown to be important and they are correctly predicted by the model at low coverage.
ISSN:0743-7463
1520-5827
DOI:10.1021/la034227u