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Preparation and properties of BaTiO3/porous oxide composites

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Abstract

Barium titanate has been synthesized in pores of oxide matrices using barium titanyl oxalate and barium titanyl peroxide (peroxotitanate) by a sol-gel process and by dispersing the precursors together with pyrogenic oxides in water. The composites were characterized by X-ray diffraction, differential thermal analysis, nitrogen adsorption measurements, transmission electron microscopy, dielectric spectroscopy, and photocatalytic activity measurements. The results demonstrate that the pore structure of the composites forms concurrently with their crystal structure. The composite produced using pyrogenic alumina has high dielectric permittivity.

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Authors and Affiliations

  1. Institute for Sorption and Problems of Endoecology, National Academy of Sciences of Ukraine, ul. Generala Naumova 13, Kyiv, 03164, Ukraine

    V. V. Sydorchuk, S. V. Khalameida & V. A. Zazhigalov

  2. Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kyiv, 03142, Ukraine

    V. P. Klimenko & V. A. Mikheev

Authors
  1. V. V. Sydorchuk
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  2. S. V. Khalameida
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  3. V. P. Klimenko
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  4. V. A. Mikheev
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  5. V. A. Zazhigalov
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Correspondence to V. V. Sydorchuk.

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Original Russian Text © V.V. Sydorchuk, S.V. Khalameida, V.P. Klimenko, V.A. Mikheev, V.A. Zazhigalov, 2012, published in Neorganicheskie Materialy, 2012, Vol. 48, No. 9, pp. 1046–1052.

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Sydorchuk, V.V., Khalameida, S.V., Klimenko, V.P. et al. Preparation and properties of BaTiO3/porous oxide composites. Inorg Mater 48, 925–930 (2012). https://doi.org/10.1134/S0020168512090142

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  • DOI: https://doi.org/10.1134/S0020168512090142

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