Abstract
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 Ce3+/Ce4+ 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.
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Acknowledgments
This publication was generated in the frame of MULTIPROTECT project, funded by 6th Framework Programme of the European Community (Contract N° IP- 011783). Otherwise the JAE fellowship of Nataly Carolina Rosero-Navarro is thanked to CSIC. The authors are grateful to Lauran Pelaéz, Antonio Tomás and Eva Peiteado for their assistance with the experimental techniques.
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Rosero-Navarro, N.C., Figiel, P., Jedrzejewski, R. et al. Influence of cerium concentration on the structure and properties of silica-methacrylate sol–gel coatings. J Sol-Gel Sci Technol 54, 301–311 (2010). https://doi.org/10.1007/s10971-010-2194-9
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DOI: https://doi.org/10.1007/s10971-010-2194-9