Nanocomposites containing nanoclusters of Fe 2P or γ-Fe 2O 3
Covalent incorporation of an organoiron complex into a silica xerogel matrix affords a single-source precursor for two different nanocomposite materials. Thermal treatment of this molecularly doped xerogel under hydrogen produces a nanocomposite containing nanocrystals of Fe 2P (barringerite). Therm...
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Published in | Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 204; no. 1; pp. 176 - 180 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
1995
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Subjects | |
Online Access | Get full text |
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Summary: | Covalent incorporation of an organoiron complex into a silica xerogel matrix affords a single-source precursor for two different nanocomposite materials. Thermal treatment of this molecularly doped xerogel under hydrogen produces a nanocomposite containing nanocrystals of Fe
2P (barringerite). Thermal treatment of this doped xerogel under oxidizing conditions gives a nanocomposite containing nanocluster of γ-Fe
2O
3 (maghemite-Q). The latter result is unique in that thermal treatment of silica xerogels doped with ferric ions under similar thermal conditions affords an undesired iron silicate, Fe
2SiO
4 (fayalite), as the principle product. Preliminary magnetization measurements indicate that both nanocomposites exhibit interesting magnetic properties. |
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ISSN: | 0921-5093 1873-4936 |
DOI: | 10.1016/0921-5093(95)09956-5 |