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Synthesis of zeolite MFI films on alumina and silicon supports using seed crystals  

Ko, Tae-Seog (Department of Jewelry Design and Metalsmithing, Dongshin University)
Abstract
Contiuous c-oriented zeolite MFI films $(<35{\mu}m)$ were prepared by hydrothermal secondary growth of silicalite-1 seed crystal in the surface of alumina porous substrate and silicon substrate. The supported films were characterized with scanning electron microscopy and X-ray diffraction. Effect of substrate surface roughness were investigated and a mechanism for c-oriented film formation and characteristic dom-like defects formation which is observed after seeding growth was discussed. The roughness of substrate plays an important role.
Keywords
Zeolite MFI film; Oriented crystal growth;
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