INFRARED SPECTROSCOPIC STUDY OF THE INTERACTION OF CATIONS IN ZEOLITES WITH SIMPLE MOLECULAR PROBES .3. ADSORPTION AND POLARIZATION OF METHANE AND ETHANE ON CATIONIC FORMS OF HIGH-SILICA ZEOLITES

Authors
KHODAKOV AY KUSTOV LM KAZANSKY VB WILLIAMS C
Citation
Ay. Khodakov et al., INFRARED SPECTROSCOPIC STUDY OF THE INTERACTION OF CATIONS IN ZEOLITES WITH SIMPLE MOLECULAR PROBES .3. ADSORPTION AND POLARIZATION OF METHANE AND ETHANE ON CATIONIC FORMS OF HIGH-SILICA ZEOLITES, Journal of the Chemical Society. Faraday transactions, 89(9), 1993, pp. 1393-1395
Citations number
10
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Journal of the Chemical Society. Faraday transactions → ACNP
ISSN journal
09565000
Volume
89
Issue
9
Year of publication
1993
Pages
1393 - 1395
Database
ISI
SICI code
0956-5000(1993)89:9<1393:ISSOTI>2.0.ZU;2-A
Abstract
Adsorption of methane and ethane as molecular probes on cationic forms of high-silica zeolites has been investigated by diffuse reflectance infrared spectroscopy. In addition to physically adsorbed species of t he alkanes, molecules perturbed via an interaction with the cations we re observed. Such a polarization results in a low-frequency shift of t he antisymmetric stretching vibrations of methane molecules. A linear correlation was found between the extent of CH4 polarization and the e lectrostatic field of the cation.