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Synthesis and characterization of fluoride xerogels

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Abstract

Using coprecipitation from aqueous solutions, we have synthesized transparent fluoride xerogels with both hexagonal (NdF3, PrF3, and CeF3; tysonite structure) and cubic (Sr0.6Y0.4F2.4, Ba4Y3F17:Bi, and Ba4Y3F17:Yb; fluorite structure) symmetries. As shown by scanning electron microscopy, transmission electron microscopy, and atomic force microscopy, the transparent xerogels have a hierarchical structural organization: primary nanoparticles 20–30 nm in size form agglomerates about 100 nm in size, which in turn form a “skeleton” with many voids and channels up to hundreds of nanometers in size.

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Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    M. N. Mayakova, S. V. Kuznetsov, P. P. Fedorov, V. V. Voronov, R. P. Ermakov, O. V. Uvarov & V. V. Osiko

  2. Institute of Spectroscopy, Russian Academy of Sciences, Fizicheskaya ul. 5, Troitsk, Moscow oblast, 142190, Russia

    K. N. Boldyrev

  3. Physicotechnical Institute, Udmurt Scientific Center, Ural Branch, Russian Academy of Sciences, ul. Kirova 132, Izhevsk, 426000, Russia

    O. V. Karban’

  4. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    A. E. Baranchikov

Authors
  1. M. N. Mayakova
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  2. S. V. Kuznetsov
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  3. P. P. Fedorov
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  4. V. V. Voronov
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  5. R. P. Ermakov
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  6. K. N. Boldyrev
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  7. O. V. Karban’
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  8. O. V. Uvarov
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  9. A. E. Baranchikov
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  10. V. V. Osiko
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Correspondence to P. P. Fedorov.

Additional information

Original Russian Text © M.N. Mayakova, S.V. Kuznetsov, P.P. Fedorov, V.V. Voronov, R.P. Ermakov, K.N. Boldyrev, O.V. Karban’, O.V. Uvarov, A.E. Baranchikov, V.V. Osiko, 2013, published in Neorganicheskie Materialy, 2013, Vol. 49, No. 11, pp. 1242–1246.

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Mayakova, M.N., Kuznetsov, S.V., Fedorov, P.P. et al. Synthesis and characterization of fluoride xerogels. Inorg Mater 49, 1152–1156 (2013). https://doi.org/10.1134/S0020168513110101

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  • DOI: https://doi.org/10.1134/S0020168513110101

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