Investigations of adsorbed organic molecules in Na-Y zeolite by xenon-129 NMR

Journal Article · Thu Jan 11 04:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100364a006· OSTI ID:6947109

de Menorval, L C; Raftery, D; Liu, S B; Takegoshi, K; Ryoo, R; Pines, A ^[1]

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1. Lawrence Berkeley Lab., CA (USA)

The adsorption of n-hexane, benzene, and trimethylbenzene in Na-Y zeolite supercages has been investigated by use of xenon-129 NMR. As shown by Fraissard and co-workers, xenon-129 is an excellent probe of its environment in zeolites and is sensitive to the number of adsorbed guest molecules. The xenon-129 chemical shift, when extrapolated to zero effective xenon pressure, is 89.7 {plus minus} 0.1 ppm for benzene, 89.0 {plus minus} 1.3 ppm for trimethylbenzene, and 107.7 {plus minus} 1.2 ppm for n-hexane at a concentration of two guest molecules per zeolite supercage compared to 58.9 {plus minus} 0.5 ppm for empty Na-Y zeolite supercages. This approach is useful for determining the number of adsorbed molecules inside zeolite supercages and given information about their arrangement within the supercages.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6947109
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:1; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METALS
ALKANES
AROMATICS
BENZENE
DATA
DATA ANALYSIS
DAYS LIVING RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEXANE
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ION EXCHANGE MATERIALS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MINERALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
RADIOISOTOPES
RESONANCE
SODIUM
STABLE ISOTOPES
XENON 129
XENON ISOTOPES
ZEOLITES