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Possibilities and Limits of Texture Properties Characterization

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Sol-Gel Methods for Materials Processing

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Abstract

A series of microporous-mesoporous mechanical mixtures of zeolite NaY and γ-alumina was used for testing the applicability of the modified (three-parameter) BET isotherm equation. Nitrogen adsorption isotherms (77 K) of NaY+ γ-alumina samples were analyzed by this equation and the results compared with the independent textural information obtained from t-plots (with the standard isotherm of nonporous α-alumina and the standard isotherms of Lecloux-Pirard). It appeared that the use of the modified BET equation as same as the standard t-plot method provided good micropore volumes and mesopore surface areas contrary to the incorrect results of the classic BET equation.

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References

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Author information

Authors and Affiliations

  1. Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, v.v.i, Rozvojová 135, 165 02, Prague 6-Suchdol, Czech

    Olga Šolcová, Lenka Matějová & Petr Schneider

  2. Department of Petroleum Technology and Petrochemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37, Bratislava, Slovak Republic

    Pavol Hudec

Authors
  1. Olga Šolcová
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  2. Lenka Matějová
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  3. Pavol Hudec
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  4. Petr Schneider
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Corresponding author

Correspondence to Lenka Matějová .

Editor information

Editors and Affiliations

  1. University of Sassari, Italy

    Plinio Innocenzi

  2. Ukraine Academy of Sciences, Kiev, Ukraine

    Yuriy L. Zub

  3. Swedish Life Science University (SLU), Uppsala, Sweden

    Vadim G. Kessler

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Šolcová, O., Matějová, L., Hudec, P., Schneider, P. (2008). Possibilities and Limits of Texture Properties Characterization. In: Innocenzi, P., Zub, Y.L., Kessler, V.G. (eds) Sol-Gel Methods for Materials Processing. NATO Science for Peace and Security Series C: Environmental Security. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8514-7_39

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