ChemInform Abstract: Organometallic Compounds as Single-Source Precursors to Nanocomposite Materials

Autor:	J. P. CARPENTER, C. M. LUKEHART, S. B. MILNE, S. R. STOCK, J. E. WITTIG, B. D. JONES, R. GLOSSER, J. G. ZHU
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Nanocomposite chemistry Chemical engineering Transition metal Dopant Inorganic chemistry Molecule General Medicine Thermal treatment Bifunctional Nanoclusters Group 2 organometallic chemistry
Zdroj:	ChemInform. 29
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.199837291
Popis:	Molecularly doped silica xerogels are prepared via sol-gel procedures by the addition of either main-group or transition metal organometallic compounds containing bifunctional ligands to conventional sol-gel recipes. These bifunctional ligands contain distal alkoxysilyl groups, so that the dopant molecules become covalently incorporated into the silica xerogel matrix as it is being formed. Subsequent thermal treatment under reducing or oxidizing-then-reducing conditions leads to the decomposition of molecular precursor and formation of a nanoparticulate material highly dispersed throughout the xerogel matrix. The formation of nanocomposites containing nanoclusters of metals, semiconductors, or binary alloys will be presented along with characterization data. Factors permitting the formation of nanoparticulates with stoichiometric precision will be discussed within this {open_quotes}molecules to nanocomposite{close_quotes} synthetic strategy.
Databáze:	OpenAIRE
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