Abstract:
The method of obtaining nanoclusters α-Fe2O3 in the pores of monodisperse spherical particles of mesoporous silica (mSiO2) by a single impregnation of the pores with a melt of crystalline hydrate of ferric nitrate and its subsequent thermal destruction has been proposed. Fe3O4 nanoclusters are synthesized from α-Fe2O3 in the pores by reducing in thermodynamically equilibrium conditions. Then particles containing Fe3O4 were annealed in oxygen for the conversion of Fe3O4 back to α-Fe2O3. In the result, the particles with the structure of the core-shell mSiO2/ Fe3O4@mSiO2/α-Fe2O3 are obtained. The composition and structure of synthesized materials as well as the field dependence of the magnetic moment on the magnetic field strength have been investigated.
Citation:
E. Yu. Stovpyaga, D. A. Eurov, D. A. Kurdyukov, A. N. Smirnov, M. A. Yagovkina, V. Yu. Grigoryev, V. V. Romanov, D. R. Yakovlev, V. G. Golubev, “The synthesis of clusters of iron oxides in mesopores of monodisperse spherical silica particles”, Fizika Tverdogo Tela, 59:8 (2017), 1598–1603; Phys. Solid State, 59:8 (2017), 1623–1628
\Bibitem{StoEurKur17}
\by E.~Yu.~Stovpyaga, D.~A.~Eurov, D.~A.~Kurdyukov, A.~N.~Smirnov, M.~A.~Yagovkina, V.~Yu.~Grigoryev, V.~V.~Romanov, D.~R.~Yakovlev, V.~G.~Golubev
\paper The synthesis of clusters of iron oxides in mesopores of monodisperse spherical silica particles
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 8
\pages 1598--1603
\mathnet{http://mi.mathnet.ru/ftt9499}
\crossref{https://doi.org/10.21883/FTT.2017.08.44764.439}
\elib{https://elibrary.ru/item.asp?id=29938321}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 8
\pages 1623--1628
\crossref{https://doi.org/10.1134/S1063783417080273}
Linking options:
https://www.mathnet.ru/eng/ftt9499
https://www.mathnet.ru/eng/ftt/v59/i8/p1598
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A. V. Volkova, E. S. Lopatina, E. V. Solovyeva, L. E. Ermakova, “Effect of Magnetite Content and Specificity of Nickel(II) Ions on Electrokinetic Properties of Composites Based on Porous Silica Particles”, Colloid J, 85:4 (2023), 486
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E. Yu. Stovpyaga, D. A. Kurdyukov, D. A. Kirilenko, V. G. Golubev, “Formation of GaN nanorods in monodisperse spherical mesoporous silica particles”, Semiconductors, 54:7 (2020), 782–787
D. A. Kurdyukov, N. A. Feoktistov, D. A. Kirilenko, A. N. Smirnov, V. Yu. Davydov, V. G. Golubev, “Template synthesis of monodisperse submicrometer spherical nanoporous silicon particles”, Semiconductors, 53:8 (2019), 1048–1053
Mykhailo Derhachov, Vasyl Moiseienko, Natalia Kutseva, Bilal Abu Sal, Rudolf Holze, “Fabrication and characterization of crystalline Bi2TeO5 - Bi4Si3O12 - SiO2 nanocomposite”, Eur. Phys. J. Plus, 134:7 (2019)
D. A. Eurov, D. A. Kurdyukov, E. V. Shornikova, G. Qiang, D. R. Yakovlev, M. Bayer, V. G. Golubev, “Monodispersed spherical nanoparticles GdxSiyOz : Eu3+ for magnetic resonance tomography and optical imaging”, Phys. Solid State, 61:4 (2019), 627–631
E. Yu. Stovpyaga, D. A. Eurov, D. A. Kurdyukov, A. N. Smirnov, M. A. Yagovkina, D. R. Yakovlev, V. G. Golubev, “Template synthesis of monodisperse spherical nanocomposite SiO2/GaN:Eu3+ particles”, Semiconductors, 52:9 (2018), 1123–1128
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D. A. Eurov, D. A. Kurdyukov, A. V. Medvedev, D. A. Kirilenko, D. R. Yakovlev, “Monodisperse core–shell particles composed of magnetite and dye-functionalized mesoporous silica”, Tech. Phys. Lett., 43:8 (2017), 716–719