Influence of cerium concentration on the structure and properties of silica-methacrylate sol–gel coatings

The aim of this work was to study the effect of the incorporation of cerium nitrate in a silica-methacrylate sol–gel hybrid matrix reinforced with silica nanoparticles. Sols, coatings and powders have been studied, focusing specially in the determination of the redox ratio Ce 3+ /Ce 4+ and films str...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2010-06, Vol.54 (3), p.301-311
Main Authors: Rosero-Navarro, Nataly Carolina, Figiel, Pawel, Jedrzejewski, Roman, Biedunkiewicz, Anna, Castro, Yolanda, Aparicio, Mario, Pellice, Sergio Antonio, Durán, Alicia
Format: Article
Language:English
Subjects:
Ceramics
Cerium
Cerium nitrate
Chemistry
Chemistry and Materials Science
Coatings
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Composites
Exact sciences and technology
Focusing
Fourier transforms
General and physical chemistry
Glass
Infrared spectroscopy
Inorganic Chemistry
Iron
Materials Science
Nanoparticles
Nanotechnology
Natural Materials
Optical and Electronic Materials
Original Paper
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Silica gel
Silicon dioxide
Sol-gel processes
Sols
Spectroscopy
Spectrum analysis
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Summary:The aim of this work was to study the effect of the incorporation of cerium nitrate in a silica-methacrylate sol–gel hybrid matrix reinforced with silica nanoparticles. Sols, coatings and powders have been studied, focusing specially in the determination of the redox ratio Ce 3+ /Ce 4+ and films structure. Sols have been characterised using viscosity measurements and FT-IR spectroscopy, and powders and coatings obtained with different Ce contents through UV–Vis and FT-IR spectroscopy, TGA, TEM, AFM and FE-SEM. The goal was to reach the best compromise between maximum cerium concentration and coating stability to better understand the mechanisms acting in active anti-corrosive processes.
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-010-2194-9