Low-temperature (144 K) sup 129 Xe NMR studies of zeolites

Journal Article · Wed Jan 10 23:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100364a064· OSTI ID:6711984

Cheung, T T.P. ^[1]

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1. Phillips Petroleum Company, Bartlesville, OK (USA)

{sup 129}Xe nuclear magnetic resonance (NMR) spectra of xenon adsorbed in offretite, silicalite, and L and CaA zeolites have been measured at 144 K. Changes of the chemical shift and line width of the {sup 129}Xe resonance as a function of the xenon loading reflect the size of the pores in the zeolites. In zeolites with small pores, the chemical shift increases gradually with loadings, and the resonance is broad, while in zeolites with large pores, the chemical shift undergoes rapid increases in the high loading regime, accompanied by drastic reductions in the line width. These differences in the chemical shift and line width may be attributed to a gas-liquid transition of the adsorbed xenon in zeolites with large pores.

• OSTI ID: 6711984
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:1; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL SHIFT
DATA
DATA ANALYSIS
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INORGANIC ION EXCHANGERS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ION EXCHANGE MATERIALS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LOW TEMPERATURE
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
MINERALS
NMR SPECTRA
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
SPECTRA
STABLE ISOTOPES
XENON 129
XENON ISOTOPES
ZEOLITES