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http://acervodigital.unesp.br/handle/11449/41083
- Title:
- Thermogravimetric and UV-vis spectroscopic studies of chromium redox reactions in rutile pigments
- Universidade Federal da Paraíba (UFPB)
- Universidade Estadual Paulista (UNESP)
- Universidade Federal do Rio Grande do Norte (UFRN)
- 1388-6150
- In this study undoped and Cr, Sb or Mo doped TiO(2) were synthesized by polymeric precursor method and characterized by X-ray diffraction, UV-VIS spectroscopy, infrared spectroscopy and thermogravimetry (TG). The TG curves showed a continuous mass loss assigned to the hydroxyl elimination and Cr(6+) reduction. Doped TiO(2) samples showed a higher mass loss assigned to water and gas elimination at lower temperatures. In these doped materials a decrease in the anatase-rutile phase transition temperature was observed. After calcination at 1,000 A degrees C, rutile was obtained as a single phase material without the presence of Cr(6+).
- 1-Jul-2009
- Journal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 97, n. 1, p. 99-103, 2009.
- 99-103
- Springer
- Pechini
- Thermal analysis
- TiO(2)
- Redox reactions
- http://dx.doi.org/10.1007/s10973-009-0074-8
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/41083
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