ISSN:
1572-879X
Keywords:
29Si NMR
;
SAPO-37
;
molecular sieve
;
framework atom distribution
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A drastic change in the environment of Si atoms in SAPO-37 after heating at 1173 K is seen in the29Si MAS NMR spectrum. This suggests a modification of the location of Si, Al and P atoms. Three main phases would coexist in large amounts in the faujasite structure, the SAPO-37 originating phase, pure SiO4 islands and an aluminosilicate phase comparable to Si-Al faujasite.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00764362
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