Si/Ti binary oxides

Negishi N., Fujino M., Yamashita H., Fox M.A., Anpo M. Photophysical properties and photochemical stability of rhodamine B encapsulated in Si02 and Si-Ti binary oxide matrices by the sol-gel method. Langmuir 1994 10 1772-1776... 

In principle, the synthetic approaches presented in this chapter are not only valid for Si/Ti binary oxides but can also be transferred (with the necessary adaptations) to other mixed metal oxide systems. 

Single-source precursor approaches are becoming more and more attractive in the sol-gel synthesis of mixed oxide materials. Well-mixed Si/Ti binary oxides have been synthesized by Miller et al. They chose to use a diethoxysiloxane-ethyltitanate copolymer as a network-forming precursor since the Ti—O—Si linkage is already present in the precursor. This synthetic route avoids the problem associated with unequal hydrolysis rates of metal alkoxide precursors commonly used to prepare mixed oxide catalysts [60]. A more detailed discussion can be found in Section 25.4. 

---