Characterization of AlPO/sub 4/ and SAPO molecular sieves by /sup 129/Xe NMR spectroscopy

Journal Article · Thu May 05 04:00:00 EDT 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100320a032· OSTI ID:6862095

Davis, M E; Saldarriaga, C; Montes, C; Hanson, B E

Xe NMR spectroscopy was used to characterize several aluminophosphate and silicoaluminophosphate molecular sieves. The chemical shift of Xe-129 becomes larger as the sizes of the cavities and channels become smaller. For a particular structure type, the /sup 129/Xe chemical shift increases in magnitude in the order aluminophosphate, silicoaluminophosphate, aluminosilicate, respectively. Variable-temperature experiments were performed on the silicoaluminophosphate with faujasite structure. Only one resonance is observed at temperatures of 298-212K consistent with a homogeneous material.

• Research Organization: Virginia Polytechnic Institute and State Univ., Blacksburg (USA)
• OSTI ID: 6862095
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:9; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM PHOSPHATES
CAVITIES
CHEMICAL SHIFT
DATA
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RADIOISOTOPES
RESONANCE
SILICON COMPOUNDS
SPECTRA
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
XENON 129
XENON ISOTOPES