Titania-silica materials from the molecular precursor Ti[OSi(O{sup t}Bu){sub 3}]{sub 4}: Selective epoxidation catalysts

Journal Article · Sat Jan 01 00:00:00 EST 2000 · Chemistry of Materials

DOI:https://doi.org/10.1021/cm990444y· OSTI ID:20014849

Coles, M P; Lugmair, C G; Terry, K W; Tilley, T D

The tris(tert-butoxy)siloxy complex Ti[OSi(O{sup t}Bu){sub 3}]{sub 4} was pyrolytically converted at low temperatures to the theoretical yield of homogeneous TiO{sub 2}{center{underscore}dot}4SiO{sub 2} materials. The complex also serves as a soluble model for isolated, tetrahedral titanium atoms in a silica matrix. The molecular route to homogeneous titania-silica materials described here represents an alternative to the sol-gel method, affording materials with surface areas comparable to those of related aerogels and moderate-to-excellent activities for the epoxidation of cyclohexene.

• Research Organization: Univ. of California, Berkeley, CA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 20014849
• Journal Information: Chemistry of Materials, Vol. 12, Issue 1; Other Information: PBD: Jan 2000; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM OXIDES
SILICON OXIDES
ORGANIC SILICON COMPOUNDS
TITANIUM COMPLEXES
CATALYSTS
PYROLYSIS