Statistical Thermodynamic Theory for Adsorption Isotherms

It is shown that the natural expansion parameter in the grand canonical ensemble for monolayer surface coverage is the expansion of the logarithm of the number of adsorbed molecules, ln N¯a, as a polynomial expansion in ln z/z0=ln P/P0=(μ−μ0 )/ kT. For the heterogeneous localized site model this exp...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 1971-01, Vol.55 (8), p.4066-4071
Main Author: Heer, C. V.
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:It is shown that the natural expansion parameter in the grand canonical ensemble for monolayer surface coverage is the expansion of the logarithm of the number of adsorbed molecules, ln N¯a, as a polynomial expansion in ln z/z0=ln P/P0=(μ−μ0 )/ kT. For the heterogeneous localized site model this expansion truncates after the squared term in the expansion, and the linear dependence of the monolayer surface coverage adsorption isotherms, as a function of (μ−μ0)2= (kT ln P/P0)2, has a natural explanation.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1676702