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Possibilities and Limits of Texture Properties Characterization

  • Olga Šolcová
  • Lenka Matějová
  • Pavol Hudec
  • Petr Schneider
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

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.

Keywords

Adsorption isotherm microporous-mesoporous samples modified BET equation t-plots 

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References

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Copyright information

© Springer Science + Business Media B.V 2008

Authors and Affiliations

  • Olga Šolcová
    • 1
  • Lenka Matějová
    • 1
  • Pavol Hudec
    • 2
  • Petr Schneider
    • 1
  1. 1.Institute of Chemical Process FundamentalsAcademy of Sciences of the Czech RepublicPrague 6-SuchdolCzech
  2. 2.Department of Petroleum Technology and Petrochemistry, Faculty of Chemical and Food TechnologySlovak University of TechnologyBratislavaSlovak Republic

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