Abstract
The approach for calculating the adsorption free energy and adsorption energy distributions for a heterogeneous solid surface as the sum of two uniform functions directly from co-ordinates of the tail of the probe’s chromatographic peak is presented and discussed. Distribution functions are derived from data collected for the series of test adsorbates (n-alkanes C5—C10 and five polar organic compounds) by means of inverse gas chromatography at finite concentrations. Average dispersive components of surface free energy and the donor/acceptor components of the adsorption energy in the monolayer region for the parent and mixed Si and Al pyrogenic oxides are also determined and discussed.
Published Version
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