Towards realization of a micro- and mesoporous composite silicate catalyst

A composite silicate material, which possesses the characteristics of both microporous zeolite and mesoporous silica materials, is developed by top-down and bottom-up synthesis techniques. In order to realize a micro- and mesoporous composite material, several essential points must be clarified, since each porous material is synthesized under very different metastable conditions: zeolite is a silicate crystal, while the wall of mesoporous material is composed of amorphous silicate. Here, some aspects of the realization of a micro- and mesocomposite porous material are described, as are our experimental results regarding the successful production of composite catalyst.