Authors: Dorota Majda Wacław Makowski
Publish Date: 2010/06/04
Volume: 101, Issue: 2, Pages: 519-526
Abstract
Equilibrated thermodesorption TPED and quasiequilibrated temperature programmed desorption and adsorption QETPDA were employed as methods for studying the influence of different extraframework cations Na+ K+ Li+ Cu2+ Zn2+ or Mg2+ on adsorption of nhexane on ZSM5 zeolite with high Al content Si/Al = 15 Considerable influence of the cations on both initial adsorption in the micropores and ordering of the adsorbed molecules occurring at high coverages has been observed This influence is reflected by the values of the adsorption enthalpy and entropy determined by fitting the dual site Langmuir DSL adsorption function to the equilibrated thermodesorption profiles However no clear correlation between the determined parameters and properties of the extraframework cations could be found
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