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Sol–gel synthesis and characterization of Fe2O3 · CeO2 doped with Pr ceramic pigments

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Abstract

Undoped x · α-Fe2O3 y · CeO2 and doped with praseodymium ceramic pigments were obtained by the sol–gel method after heat treatment at 800 °C for 2 h. These pigments were characterized by XRD, nitrogen adsorption, scanning electron microscopy, ultraviolet-visible absorption spectroscopy and colorimetrical measurements. Red and brown colors with several tonalities were observed after changes with Ce and Pr concentration.

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Acknowledgments

The authors thank the financial support of the Brazilian research financing institutions: CAPES, CNPq, and FAPESP.

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Authors and Affiliations

  1. Centro de Ciências da Natureza, Departamento de Química, Universidade Federal do Piauí, 64049-550, Teresina, PI, Brazil

    M. G. B. Nunes, M. R. M. C. Santos & L. S. Santos-Júnior

  2. Laboratório Interdisciplinar de Eletroquímica e Cerâmica, Departamento de Química, Universidade Federal de São Carlos, P.O. Box 676, 13565-905, Sao Carlos, SP, Brazil

    L. S. Cavalcante, V. Santos & J. C. Sczancoski

  3. Laboratório Interdisciplinar em Cerâmica, Departamento de Físico-Química, Instituto de Química, Universidade Estadual Paulista, P.O. Box 355, 14801-907, Araraquara, SP, Brazil

    E. Longo

Authors
  1. M. G. B. Nunes
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  2. L. S. Cavalcante
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  3. V. Santos
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  4. J. C. Sczancoski
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  5. M. R. M. C. Santos
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  6. L. S. Santos-Júnior
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  7. E. Longo
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Correspondence to L. S. Cavalcante.

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Nunes, M.G.B., Cavalcante, L.S., Santos, V. et al. Sol–gel synthesis and characterization of Fe2O3 · CeO2 doped with Pr ceramic pigments. J Sol-Gel Sci Technol 47, 38–43 (2008). https://doi.org/10.1007/s10971-008-1751-y

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  • DOI: https://doi.org/10.1007/s10971-008-1751-y

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