Adsorption on nonporous and supermicroporous adsorbents |
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Authors: | Polyakov N. S. Petukhova G. A. Gur'yanov V. V. Gur'yanova L. I. |
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Affiliation: | (1) Institute of Physical Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 119991 Moscow, Russian Federation;(2) Elektrostal Scientific Industrial Association Neorganika,, 4 ul. K. Marksa, 144001 Electrostal, Moscow Region, Russian Federation |
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Abstract: | The mean values of the characteristic energy of C6H6 adsorption in large micropores were calculated from the adsorption isotherms of benzene vapor on carbon blacks. The supermicropores are characterized by the significant dispersion of the adsorption potential resulted from the pore-size distribution, which imparts the polymolecular character to adsorption. The effect of enhancement of the characteristic energy of adsorption was analyzed, which was caused by the overlap of the force fields of the opposite pore walls and the reduction of the adsorption film surface with micropore volume filling. The both factors are comparable by magnitude and depend on the micropore sizes. |
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Keywords: | nonporous supermicorporous adsorbents adsorption potential characteristic energy of adsorption polymolecular adsorption |
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