Structural study of highly porous nanocomposite aerogels

Carta, Daniela and Corrias, Anna and Mountjoy, Gavin and Navarra, Gabriele (2007) Structural study of highly porous nanocomposite aerogels. Journal of Non-Crystalline Solids, 353 (18-21). pp. 1785-1788. ISSN 0022-3093. (The full text of this publication is not available from this repository)

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Official URL http://dx.doi.org/10.1016/j.jnoncrysol.2007.02.010...

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 degrees C of the parent aerogel and is complete after calcination at 900 degrees C, while the high porosity of the sample is mostly retained.

Item Type:	Article
Uncontrolled keywords:	nanocrystals; TEM/STEM; nanocomposites; aerogels; X-ray absorption
Subjects:	Q Science
Divisions:	Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User:	Gavin Mountjoy
Date Deposited:	03 Jul 2008 13:37
Last Modified:	15 May 2014 13:12
Resource URI:	https://kar.kent.ac.uk/id/eprint/9917 (The current URI for this page, for reference purposes)