Surface properties of mesoporous Ti-MCM-48 and their modifications produced by silylation

V. Dellarocca, L. Marchese, M. L. Peña, F. Rey, A. Corma, S. Coluccia

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The catalytic activity of Ti-MCM-48 catalysts may be improved by increasing the hydrophobic character of the surface by a silylation post-treatment with hexamethyldisilazane (HDMS) as silylating agent. In this way the poisoning of the catalysts is noticeably decreased. The silylation procedure led to the transformation of silanols, Si(OSi)3(OH), into Si(OSi)3[OSi(CH3)3], which was confirmed by 29Si-MAS-NMR and diffuse reflectance (DR) UV-Vis spectroscopies.

Lingua originaleInglese
pagine (da-a)209-220
Numero di pagine12
RivistaStudies in Surface Science and Catalysis
Volume140
DOI
Stato di pubblicazionePubblicato - 2001

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