Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 101, Issue 1-2, Pages 153-160Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2006.11.006
Keywords
defect groups; hydroxyl population; FT-IR and NMR; Beckmann rearrangement reaction; Silicalite-1 catalyst
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The aim of this paper is to investigate the role played by the zeolitic defect groups on the catalytic behavior of Silicalite-1 in Beckmann rearrangement reaction. Samples of Silicalite-1 catalysts were prepared and activated by different post-synthesis procedures. Catalytic activity and deactivation rate of the different catalysts were correlated with the different types of hydroxyl population. FT-IR and NMR techniques were used in order to determine the amount of defect groups and the different silanol types. The results show that Silicalite-1 is a good catalyst for Beckmann rearrangement reaction and when the geminal silanols are present the catalyst deactivate faster. (c) 2006 Elsevier Inc. All rights reserved.
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