Abstract
Tin containing mesoporous silicas with various tin contents were prepared by reaction of tetrabutyl tin with the surface silanol groups of calcined MCM-41 followed by thermal treatment under oxygen. Various physicochemical methods (XRF, FTIR, XRD, HRTEM, N2 adsorption, UV-vis spectroscopy, ...) and the catalytic hydroxylation of phenol by H2O2 were used to characterize the resulting materials. It is shown that the materials prepared by this way have a better hydrothermal stability and a higher catalytic activity than tin containing MCM-41 prepared by conventional methods (mechanical mixture of nano-sized SnO2 and MCM-41, impregnation of MCM-41 by SnCl 4 or hydrothermal synthesis).
Original language | English (US) |
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Pages (from-to) | 185-191 |
Number of pages | 7 |
Journal | Journal of Molecular Catalysis A: Chemical |
Volume | 238 |
Issue number | 1-2 |
DOIs | |
State | Published - Sep 1 2005 |
Externally published | Yes |
Keywords
- Hydroxylation of phenol
- Mesoporous silica
- Surface organometallic chemistry
- Tetrabutyltin
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
- Physical and Theoretical Chemistry