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An Alternative sol–gel route for the preparation of thin films in CeO2–TiO2 binary system

Kidchob, Tongjit and Malfatti, Luca and Marongiu, Daniela and Enzo, Stefano and Innocenzi, Plinio (2010) An Alternative sol–gel route for the preparation of thin films in CeO2–TiO2 binary system. Thin Solid Films, Vol. 518 (6), p. 1653-1657. ISSN 0040-6090. Article.

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DOI: 10.1016/j.tsf.2009.11.078


Thin films of titania–ceria have been prepared via sol–gel processing by employing titanium and cerium chloride compounds in highly acidic conditions for the precursor sol. This sol–gel route allows obtaining titania–ceria and cerium titanate films, CeTi2O6, after thermal treatment in air. The films exhibit a high optical transparency which is modulated by controlling the composition and the thermal treatment. The materials have been characterized by X-ray diffraction, UV–visible spectroscopy, ellipsometric spectroscopy and atomic force microscopy. The titania–ceria films show, as a function of the composition, the formation of different phases after thermal treatment in air at 800 °C. In particular, with the composition Ce25–Ti75 we have obtained a pure cerium titanate phase, CeTi2O6, which can be formed only in a very strict range of compositions.

Item Type:Article
ID Code:5703
Uncontrolled Keywords:Cerium titanate, brannerite, sol–gel, titania–ceria
Subjects:Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 Scienza e tecnologia dei materiali
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
001 Università di Sassari > 01 Dipartimenti > Architettura e pianificazione > LMNT-Laboratorio di Scienza dei Materiali e NanoTecnologie
Copyright Holders:© 2009 Elsevier
Deposited On:02 Mar 2011 17:08

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