Nanocomposites from molecularly doped silica xerogels
Conference
·
OSTI ID:126646
- Vanderbilt Univ., Nasville, TN (United States); and others
Molecularly doped silica xerogels are prepared via sol-gel procedures by the addition of inorganic or organometallic molecules containing bifunctional ligands to conventional sol-gel recipes. These bifunctional ligands contain distal silicate ester groups, so that the dopant molecules become covalently incorporated into the silica xerogel matrix. Subsequent thermal treatment under reducing or oxidizing-then-reducing conditions leads to decomposition of the molecular precursor and formation of a nanophase material highly dispersed throughout the xerogel matrix. The formation of nanocomposites containing nanoclusters of metals, semiconductors, or a bimetallic alloy will be presented along with characterization data including spectroscopic confirmation of quantum confinement effects.
- OSTI ID:
- 126646
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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