AN EQUATION OF STATE FOR MULTILAYER ADSORPTION

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:175

Article

ARANOVICH, GL ; DONOHUE, MD

关键词: ISOTHERM OF MULTILAYER ADSORPTION;    GIBBS INTEGRAL;    EQUATION OF STATE;    SPREADING PRESSURE;    INTERFACIAL ENERGIES;    WEAKLY AND STRONGLY ATTRACTIVE SURFACES;    BENZENE ON WATER;    PENTANE ON MERCURY;   

DOI  :  10.1006/jcis.1995.1480

来源: Elsevier

【 摘 要 】

An equation of state for multilayer adsorption is derived. This equation gives the correct thermodynamic behavior at small pressures and at the saturation vapor pressure. The equation of state is analyzed for weakly attractive and strongly attractive surfaces and results are compared with experimental data. In addition, a new relationship is obtained for the exponent d which describes the singularity in the multilayer adsorption isotherm, It is shown that d depends on temperature, saturation vapor pressure, Henry's coefficient, monolayer capacity, and surface tension. (C) 1995 Academic Press, Inc.

【 授权许可】

Free