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Title: | Room-temperature interaction of n-hexane with ZSM-5 zeolites : Microcalorimetric and temperature-programmed desorption studies | Authors: | Rac, V. Rakić, Vesna Gajinov, S. Dondur, Vera Auroux, Aline |
Keywords: | Microcalorimetry;n-hexane;Temperature-programmed desorption;ZSM-5 | Issue Date: | 1-Jan-2006 | Journal: | Journal of Thermal Analysis and Calorimetry | Abstract: | In this work, room temperature interaction of n-hexane with HZSM-5 (Si/Al=20) and ion-exchanged samples containing one (CuZSM-5, FeZSM-5 and MnZSM-5) or two transition-metal cations (Fe,CuZSM-5; Cu,MnZSM-5 and Fe,MnZSM-5) was studied by microcalorimetry and TPD methods. Both differential heats and the amounts of n-hexane adsorbed per one unit cell were quantitatively determined. Higher heats of adsorption and higher amounts of adsorbed gas were found for ion-exchanged samples than for HZSM-5. The experiments of n-hexane adsorption on hydrated samples were also performed. The amounts of n-hexane adsorbed on hydrated ZSM-5 were lower in comparison with dehydrated samples, while the energies of interaction were similar. © 2006 Akadémiai Kiadó. |
URI: | https://dspace.ffh.bg.ac.rs/handle/123456789/1594 | ISSN: | 1388-6150 | DOI: | 10.1007/s10973-005-7164-z |
Appears in Collections: | Journal Article |
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