Synthesis of SAPO-35 in non-aqueous gels
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 93 (18) , 3411-3415
- https://doi.org/10.1039/a702450i
Abstract
The molecular sieve SAPO-35 has been synthesized in a non-aqueous medium for the first time using a new template, hexamethyleneimine. It has been characterized by XRD, SEM, TG–DTA, MAS NMR, FTIR and adsorption techniques. The study indicates that Si replaces mainly the P atoms in the AlPO 4 -35 framework giving rise to three different Brønsted acid bridging hydroxy groups, with IR absorptions at 3580, 3604 and 3631 cm −1 . The three bands are attributed to Si incorporation in different tetrahedral positions in double six-membered rings and single six-membered rings.Keywords
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