| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1485356 | Journal of Non-Crystalline Solids | 2007 | 4 Pages |
Abstract
The structural properties of CoFe2O4–SiO2 highly porous nanocomposite aerogels have been investigated by X-ray Absorption Spectroscopy and Transmission Electron Microscopy techniques. The aerogels are obtained by supercritical drying of composite gels obtained using a two step procedure where fast gelation is achieved using urea in the second step. The formation of CoFe2O4 nanocrystals in the silica matrix begins after calcination at 750 °C of the parent aerogel and is complete after calcination at 900 °C, while the high porosity of the sample is mostly retained.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Daniela Carta, Anna Corrias, Gavin Mountjoy, Gabriele Navarra,