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Generalized synthetic routes for the preparation of inorganic and organic/inorganic hybrid materials with mesoscopic order:. Powders catalysts adsorbents, chromatography/separations media Films low-k dielectric materials optical devices, waveguides, sensors coatings, membranes, packaging
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Generalized synthetic routes for the preparation of inorganic and organic/inorganic hybrid materials with mesoscopic order: • Powders • catalysts • adsorbents, chromatography/separations media • Films • low-k dielectric materials • optical devices, waveguides, sensors • coatings, membranes, packaging • Fibers • optical transmission & amplification • molecular wires • Monoliths • optical devices • sensors • structural materials
as-synthesized exposure (365 nm) after ~2 sec after 15 min N O N O 2 Dynamic Optical Responses in Mesostructured Materials G. Wirnsberger et al., Chem. Comm., 119 (2001) G. Wirnsberger et al., Adv. Mater. 12, 1450 (2000) Photochromism pH control Fluorescein isocyanate O h1 or heat + h2 N N O 2 O h1 or heat N N N O h2 N
Sub-Nanoporous Zeolites: < 1 nm Faujasite Mesoporous Molecular Sieves: 2 – 10 nm MCM-41 Ultra Large Pore Materials: 5 – 50 nm SBA-15 Nano- and Mesoscopic Architectures:
Structural Control over Multiple Length Scales D. Zhao et al., Chem. Mater., 11, 1174 (1999) Meso/Macroporous Ceramic Membranes • high surface areas • separately adjustable pore sizes • regenerable • functionalizable • for filtration, adsorption & catalysis of large molecules