SURFACE CHARACTERIZATION OF TITANIA-SILICA COMPOSITE OXIDES PREPARED BY RAPID HYDROLYSIS

Authors
KANAI H SHONO M IMAMURA S KOBAYASHI H
Citation
H. Kanai et al., SURFACE CHARACTERIZATION OF TITANIA-SILICA COMPOSITE OXIDES PREPARED BY RAPID HYDROLYSIS, Journal of molecular catalysis. A, Chemical, 130(1-2), 1998, pp. 187-193
Citations number
27
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular catalysis. A, Chemical → ACNP
ISSN journal
13811169
Volume
130
Issue
1-2
Year of publication
1998
Pages
187 - 193
Database
ISI
SICI code
1381-1169(1998)130:1-2<187:SCOTCO>2.0.ZU;2-L
Abstract
The surface structures of TiO2-SiO2 composite oxides prepared by rapid hydrolysis were characterized by an ESR technique, The g(zz) value of O-2(-) adsorbed on titanium oxides gave a good indication for discrim inating between tetrahedral and octahedral Ti sites. The tetrahedral T i sites which predominates on the surface of low-loaded TiO2-SiO2 is c losely related to the selectivity in the epoxidation of 1-octene with tert-butyl hydroperoxide catalyzed by TiO2-SiO2 composite oxides. (C) 1998 Elsevier Science B.V.