Physico-chemical and MAS NMR characterization of mesoporous SAPOs

Mesoporous SAPOs (average pore radius ∼30 Å) have been synthesized using organized micellar arrays of templates. The synthesized SAPOs have been characterized by XRD, TEM, TGA, sorption and MAS NMR techniques. There is no evidence of Si–O–P linkages in these materials. The distribution of silicon ar...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 1998-02, Vol.167 (2), p.173-181
Main Authors: Chakraborty, Basab, Pulikottil, Alex C, Viswanathan, B
Format: Article
Language:English
Subjects:
Characterization
Chemistry
Exact sciences and technology
General and physical chemistry
Ion-exchange
Magnetic angle spinning
Mesoporous
NMR
Silicoaluminophosphate
Surface physical chemistry
Zeolites: preparations and properties
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Summary:Mesoporous SAPOs (average pore radius ∼30 Å) have been synthesized using organized micellar arrays of templates. The synthesized SAPOs have been characterized by XRD, TEM, TGA, sorption and MAS NMR techniques. There is no evidence of Si–O–P linkages in these materials. The distribution of silicon around Al ions was studied by calcination at higher temperatures. The possibility of synthesizing mesoporous SAPOs with silicon rich regions, possessing lesser acidity than the zeolites, will open up new avenues for their technical applications.
ISSN:0926-860X
1873-3875
DOI:10.1016/S0926-860X(97)00319-0