Sorption of gases in molecular sieves. Theory for Henry's constant
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 77 (1) , 157-168
- https://doi.org/10.1039/f19817700157
Abstract
A theory which takes into account both dispersion and electrostatic energies (ion–dipole, ion–induced-dipole, etc.) has been developed to calculate Henry's constant for sorption of gases in molecular sieves. The Lennard-Jones and Devonshire (LJD) theory of liquids is modified to calculate the contribution due to dispersion energies. The energy due to electrostatic forces is calculated by a direct summation. Comparison of the theory with experimental data shows that the dispersion and electrostatic energies of non-polar adsorbate molecules are of the same order of magnitude.Keywords
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