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Composites based on SiO2 micrograins and cobalt-containing nanoparticles: Synthesis, structure, and magnetic properties

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

Cobalt-containing particles are synthesized on the surface of silicon dioxide micrograins prepared by the Stöber-Fink method. The composition and structure of nanoparticles are determined by transmission electron microscopy, X-ray diffraction analysis, and EXAFS. The average size of cobalt nanoparticles in the samples is found to be 14 ± 5 nm. The resulting composites are shown to be ferromagnetics with low specific magnetization values.

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Authors and Affiliations

  1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, 119991, Russia

    G. Yu. Yurkov, A. N. Volkov, O. V. Popkov, S. N. Ivicheva & Yu. F. Kargin

  2. Research Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia

    A. V. Kozinkin, Yu. A. Kozinkin & V. G. Vlasenko

  3. Faculty of Physics, Moscow State University, Moscow, 119991, Russia

    Yu. A. Koksharov & E. A. Ovchenkov

  4. All-Russian Scientific Research Institute of Aviation Materials, Moscow, 105005, Russia

    G. Yu. Yurkov

Authors
  1. G. Yu. Yurkov
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  2. A. V. Kozinkin
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  3. Yu. A. Koksharov
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  4. E. A. Ovchenkov
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  5. A. N. Volkov
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  6. Yu. A. Kozinkin
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  7. V. G. Vlasenko
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  8. O. V. Popkov
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  9. S. N. Ivicheva
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  10. Yu. F. Kargin
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Correspondence to G. Yu. Yurkov.

Additional information

Original Russian Text © G.Yu. Yurkov, A.V. Kozinkin, Yu.A. Koksharov, E.A. Ovchenkov, A.N. Volkov, Yu.A. Kozinkin, V.G. Vlasenko, O.V. Popkov, S.N. Ivicheva, Yu.F. Kargin, 2013, published in Zhurnal Fizicheskoi Khimii, 2013, Vol. 87, No. 5, pp. 849–856.

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Yurkov, G.Y., Kozinkin, A.V., Koksharov, Y.A. et al. Composites based on SiO2 micrograins and cobalt-containing nanoparticles: Synthesis, structure, and magnetic properties. Russ. J. Phys. Chem. 87, 832–839 (2013). https://doi.org/10.1134/S0036024413050300

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  • DOI: https://doi.org/10.1134/S0036024413050300

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