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Determination of parameters of porous structure of carbon adsorbent during analysis of vapor adsorption isotherms in region of polymolecular adsorption

  • Physicochemical Processes at the Interfaces
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Abstract

The methods for determining the parameters of the porous structure for adsorbents based on considering the polymolecular adsorption range are analyzed. Advantages of the δ method are shown compared to the methods of normalization of the adsorption isotherms, as it does not require knowing standard adsorption isotherms. The determination of the parameters of the porous structure can be performed based on the analysis of the adsorption isotherms for different adsorptives used directly in the sorption processes, which considerably extends the possibilities and importance of adsorption research methods. The analysis of extensive experimental materials on the sorption of different substances on nonporous and microporous carbon adsorbents is evidence of the reliability of results of the δ methods for determining the overall surfaces of mesopores and macropores and the external surface of adsorbent, as well as the volume of the macropores.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    V. V. Guryanov, G. A. Petukhova & L. A. Dubinina

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  1. V. V. Guryanov
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  2. G. A. Petukhova
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  3. L. A. Dubinina
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Correspondence to G. A. Petukhova.

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Original Russian Text © V.V. Guryanov, G.A. Petukhova, L.A. Dubinina, 2010, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2010, Vol. 46, No. 2, pp. 158–164.

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Guryanov, V.V., Petukhova, G.A. & Dubinina, L.A. Determination of parameters of porous structure of carbon adsorbent during analysis of vapor adsorption isotherms in region of polymolecular adsorption. Prot Met Phys Chem Surf 46, 191–196 (2010). https://doi.org/10.1134/S2070205110020048

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  • DOI: https://doi.org/10.1134/S2070205110020048

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