Abstract
The nonhydrolytic sol-gel process offers an extremely simple and efficient 1-step route to mesoporous hybrid silica-titania xerogels that are highly active and selective heterogeneous epoxidn. catalysts. Contrary to the conventional hydrolytic process, it is possible by this route to simultaneously control not only the Ti dispersion but also the texture and the functionalization of the catalyst, without the use of additives or supercrit. drying and starting from inexpensive chloride precursors.