The molecular statistical method for evaluating the distribution of active sites of various adsorbents relative to their energies has been improved. This method is used not only for the treatment of experimental data on the adsorption of hydrocarbons on various adsorbents, which is the usual procedure, but also data on the adsorption of polar water and methanol molecules on the active sites of adsorbent surfaces. Two types of active sites differing in energy have been shown to exist on the surface of graphitized carbon black, the complex shungite carbon/mineral adsorbent, and modified Silochrom. Chromatographic, calorimetric, and structural adsorption data were used to establish the relationship between the observed maxima of the energy distribution function of the adsorption sites with concrete adsorption sites or pores of the surface, on which the molecules are adsorbed.
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Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 44, No. 5, pp. 315–320, September–October, 2008.
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Tarasevich, Y.I., Aksenenko, E.V., Bondarenko, S.V. et al. Estimation of the energetic nonhomogeneity of the surface of oxide and carbon materials. Theor Exp Chem 44, 325–330 (2008). https://doi.org/10.1007/s11237-008-9047-4
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DOI: https://doi.org/10.1007/s11237-008-9047-4