0181000 - UFCH-W 20000041 RIV US eng J - Článek v odborném periodiku
Kotrla, Josef - Kubelková, Ludmila - Lee, C. C. - Gorte, R. J.
Calorimetric and FTIR Studies of Acetonitrile on H-[Fe]ZSM-5 and H-[Al]ZSM-5.
Journal of Physical Chemistry. B. Roč. 102, č. 8 (1998), s. 1437-1443. ISSN 1089-5647
Grant CEP: GA MŠMT OC D5.10
Výzkumný záměr: CEZ:A54/98:Z4-040-9-ii
Klíčová slova: adsorption of acetonitrile * neutral surface complex
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 2.385, rok: 1998

The adsorption of acetonitrile on H-[Fe]ZSM-5 and H-[Al]ZSM-5 was studied using microcalorimetry, temperature-programmed desorption (TPD), and FTIR in order to characterize the differences between the Brönsted acid sites in these two materials. Acetonitrile forms 1:1 stoichiometric adsorption complex with Brönsted sites associated with framework Fe (FeOHSi) and framework Al (AlOHSi). The heats of formation of the complexes differ slightly, 95ń5kJ/mol on H-[Fe]ZSM-5 compared to 110ń5kJ/mol on H-[Al]ZSM-5. The vibrational modes associated with the hydroxyls in the complexes are different in the two materials.
Trvalý link: http://hdl.handle.net/11104/0077610