Mixed-gas adsorption on real solid surfaces: Lack of correlations between adsorption energies of various components related to the wide applicability of the generalized Langmuir-Freundlich isotherm equation

Abstract

The Langmuir-Freundlich isotherm, generalized for mixed-gas adsorption on solids, is probably the most frequently applied equation in tecnological applications. A theoretical analysis of its origin suggests that this isotherm equation may be related to the situation when no correlations exist between the adsorption energies of various components. Some further modifications and improvements of this equation are proposed and tested.