(122e) Confined Synthesis of Silicalite-1 Nanocrystals In Threedimensionally Ordered Mesoporous Carbon Conference: AIChE Annual MeetingYear: 2008Proceeding: 2008 AIChE Annual MeetingGroup: Nanoscale Science and Engineering ForumSession: Templated Assembly of Inorganic Nanomaterials Time: Monday, November 17, 2008 - 1:45pm-2:04pm Authors: Fan, W., University of Massachusetts Amherst Kumar, S., University of Minnesota won Choel, Y., Institute of Technology, University of Minnesota Penn, R. L., University of Minnesota The sustained interest in the synthesis of zeolite nanocrystals is justified because they can serve as catalysts, seeds for thin film growth and for preparation of polymer-zeolite nanocomposite membranes. In this study, silicalite-1 was synthesized inside three-dimensionally-ordered mesoporous carbon with a uniform pore size that can be tuned from 20 to 40 nm. The three-dimensionally-ordered mesoporous (3DOm) carbon was prepared using ordered arrays of silica nanoparticles (Lys-Sil) as a template1,2. Electron Microscopy, X-ray diffraction and N2 adsorption and desorption reveal that the silicalite-1 nanocrystals can reliably replicate the 3DOm porosity, resulting in the first highly ordered mesopororous/microporous material with inverse opal mesoporosity and MFI zeolite microporosity. Applications in catalysis and membranes will be discussed along with implications in understanding zeolite nucleation and growth. 1. Yokoi, T.; Sakamoto, Y.; Terasaki, O.; Kubota, Y.; Okubo, T.; Tatsumi, T. J. Am. Chem. Soc. 2006, 128, 13664-13665. 2. Davis, T. M.; Snyder, M. A.; Krohn, J. E.; Tsapatsis, M. Chem. Mater. 2006, 18, 5814-5816.