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

Generalized synthetic routes for the preparation of inorganic and organic/inorganic hybrid materials with mesoscopic order:

N NO2O

N O

N

N

O

N

N NO2

O

+

h1or heat

h1or heat

h2

h2

exposure (365 nm)

after ~2 sec after 15 min

as-synthesized

Photochromism pH control

Dynamic Optical Responses in Mesostructured Materials

Fluorescein isocyanate

G. Wirnsberger et al., Chem. Comm., 119 (2001) G. Wirnsberger et al., Adv. Mater. 12, 1450 (2000)

Dr.Leonard Buckley, DARPA/DSO

Ultra Large Pore Materials: 5 – 50 nm

Mesoporous Molecular Sieves: 2 – 10 nm

Sub-Nanoporous Zeolites: < 1 nm

MCM-41

Faujasite

SBA-15

Nano- and Mesoscopic Architectures:

Meso/Macroporous Ceramic Membranes

high surface areas

separately adjustable pore sizes

regenerable

functionalizable

for filtration, adsorption & catalysis of large molecules

D. Zhao et al., Chem. Mater., 11, 1174 (1999)

Structural Control over MultipleLength Scales