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. © 2006 Elsevier Inc. All rights reserved.

Beckmann rearrangement reaction: About the role of defect groups in high silica zeolite catalysts

Aloise A.;
2007

Abstract

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. © 2006 Elsevier Inc. All rights reserved.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/175659
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 58
  • ???jsp.display-item.citation.isi??? ND
social impact