Possibilities and Limits of Texture Properties Characterization

0341031 - ÚCHP 2010 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Šolcová, Olga - Matějová, Lenka - Hudec, P. - Schneider, Petr
Possibilities and Limits of Texture Properties Characterization.
Proceedings Paper. Dordrecht: Springer, 2008 - (Innocenzi, P.; Zub, Y.; Kessler, V.), s. 435-440. ISBN 978-1-4020-8521-5. ISSN 1871-4668.
[NATO Advanced Research Workshop n Sol-Gel Approaches to Materials for Pollution Control, Water Purification and Soil Remediation. Kyiv (UA), 25.10.2007-27.10.2007]
Výzkumný záměr: CEZ:AV0Z40720504
Klíčová slova: adsorption isotherm * microporous-mesoporous samples * modified BET equation
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství

A series of microporous-mesoporous mechanical mixtures of zeolite NaY and gamma-alumina was used for testing the applicabitity of the modified (three-parameter) BET isotherm equation. Nitrogen adsorption isotherms (77 K) of NaY+ gamma-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 alpha-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.
Trvalý link: http://hdl.handle.net/11104/0184143