The Open Surface Science Journal
2011, 3 : 15-19Published online 2011 March 07. DOI: 10.2174/1876531901103010015
Publisher ID: TOSURSJ-3-15
Preparation of New Composite Films Composed of Size-Controlled Cobalt Oxide Nanoparticles Dispersed in Organically Modified Silica Glass
Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (PPSM), École Normale Supérieure de Cachan, 61 avenue du Président Wilson, 94235 Cachan Cédex, France.
ABSTRACT
The pyrolysis of transition metal carboxylates into organically modified silica glass-ZrO2 hybrid sol-gel films yields composite materials containing cobalt oxide nanoparticles in various proportions. The particles have sizes ranging from 5 to 10 nm, and they are homogeneously dispersed in the final materials. A reaction temperature near 250°C results in translucent films that have good mechanical properties and that could find application in nonlinear optics.