Physico-chemical and MAS NMR characterization of mesoporous SAPOs

被引：23

作者：

Chakraborty, B ^{[1
]}

Pulikottil, AC ^{[1
]}

Viswanathan, B ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India

来源：

APPLIED CATALYSIS A-GENERAL | 1998年 / 167卷 / 02期

关键词：

silicoaluminophosphate; mesoporous; characterization; magnetic angle spinning; NMR;

D O I：

10.1016/S0926-860X(97)00319-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesoporous SAPOs (average pore radius similar to 30 Angstrom) 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. (C) 1998 Elsevier Science B.V.

引用

页码：173 / 181

页数：9

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