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  1. No Access

    Article

    Structural Features and Sorption Properties of Mesoporous Carbon Material Prepared from Natural Shungite

    A novel carbon sorbent has been prepared from natural shungite by removing noncarbon components. We have studied sorption properties of this material for heavy metal ions and methylene blue, a cationic dye. Th...

    N. S. Sukhinina, I. I. Khodos, I. I. Zver’kova, A. N. Turanov… in Inorganic Materials (2022)

  2. No Access

    Article

    The Peculiarities of the Spectral Characteristics of Different Lu1 – xRExBO3 Structural Modifications

    The structure, the IR absorption spectra, and the luminescence spectra of microcrystals of orthoborates Lu1 – xEuxBO3, Lu0.99 – xTbxEu0.01BO3, and Lu0.99 – xYxEu0.01BO3 with 0 < x < 0.25 synthesized at 970°C have...

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova… in Physics of the Solid State (2021)

  3. No Access

    Article

    Influence of Indium on the Spectral and Structural Characteristics of Lu0.98 – xInxEu0.02BO3

    The structure, IR absorption spectra, and luminescence spectra of orthoborates Lu0.98 ‒ xInxEu0.02BO3 at 0 ≤ x ≤ 0.1 has been studied. It is shown that a Lu1 – xInxBO3 solid solution consisting of lutetium borate...

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova… in Physics of the Solid State (2020)

  4. No Access

    Article

    Influence of Cerium on the Spectral and Structural Characteristics of LuBo3(Ce,Tb)

    Studies of the structure, IR absorption spectra, luminescence spectra, and excitation of luminescence of Ce3+ and Tb3+ ions in crystals of solid solutions of Lu1 – x – yCexTbyBO3 at 0 ≤ x ≤ 0.01 and 0.07 ≤ y ≤ 0....

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova… in Physics of the Solid State (2020)

  5. No Access

    Article

    Stability and Functional Properties of Fluorite-Like Ce0.6 –xLa0.4PrxO2 – δ as Electrode Components for Solid Oxide Fuel Cells

    In order to evaluate applicability of Ce0.6 –хLa0.4PrхO2 – δ (x = 0–0.2) fluorites for protective interlayers and electrode components for intermediate-temperature solid oxide fuel cells (SOFCs), their thermal ex...

    A. I. Ivanov, I. I. Zver’kova, E. V. Tsipis… in Russian Journal of Electrochemistry (2020)

  6. No Access

    Article

    Spectral and Structural Characteristics of (Lu1 – xEux)2(WO4)3 Tungstates

    The structure, luminescence, and IR absorption spectra of (Lu1 – xEux)2(WO4)3 solid solutions are studied in a wide range of europium concentrations (0 ≤ x ≤ 1). As the europium concentration increases, two types...

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova… in Physics of the Solid State (2019)

  7. No Access

    Article

    Spectral and Structural Characteristics of Molybdates (Lu1 – xEux)2(MoO4)3

    The structure, the photoluminescence, and IR absorption spectra of solid solutions (Lu1 ‒ xEux)2(MoO4)3 have been studied over a wide range of europium concentrations (0 ≤ x ≤ 1). It has been found that there is ...

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova… in Physics of the Solid State (2019)

  8. No Access

    Article

    Spontaneous luminescence of Eu3+ ions in porous Y2O3 nanospheres

    A study of the luminescence of Eu3+ ions in Y2O3 nanospheres indicates a significant influence of the porous structure of nanoparticles on the luminescence of dopant ions. It is shown that filling the nanopores o...

    S. V. Zaitsev, Yu. V. Ermolaeva, N. A. Matveevskaya… in Optics and Spectroscopy (2017)

  9. No Access

    Article

    Evolution of the spectral characteristics upon annealing of lithium borate glasses containing europium and aluminum

    The spectral and structural characteristics of lithium borate glasses containing europium and aluminum have been investigated upon annealing at different temperatures. It has been found that the spectral chara...

    S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, I. I. Zver’kova in Physics of the Solid State (2013)

  10. No Access

    Article

    Structural transformations in La1 − x Ba x Mn0.98 57Fe0.02O3 + δ (x = 0.05−0.20)

    A systematic investigation of the structural transformations in La1 − x Ba x Mn0.98 57Fe0.02O3 + δ (x = 0.05−0.20) at different Ba...

    V. D. Sedykh, V. S. Rusakov, I. I. Zver’kova… in Physics of the Solid State (2012)

  11. No Access

    Article

    Specific features of the structural transformations in La1 − x Ca x Mn0.98 57Fe0.02O3 + δ (x = 0.05−0.50)

    The specific features of the structural transformations in La1 − x Ca x Mn0.98 57Fe0.02O3 + δ (x = 0.05−0.50) at different Ca conc...

    V. D. Sedykh, V. S. Rusakov, I. I. Zver’kova… in Physics of the Solid State (2011)

  12. No Access

    Article

    Superconductivity at 125 K in the Metallic–Oxidized Iron Interface

    Superconductivity at ≈125 K in the interface formed by metallic and oxidized iron has been assumed by means of magnetometric measurements. From X-ray diffraction measurements, it has been found that the oxidiz...

    N. S. Sidorov, A. V. Palnichenko… in Journal of Superconductivity and Novel Mag… (2011)

  13. No Access

    Article

    Synthesis of a periodic SiC/C nanostructure

    Highly porous periodic structures consisting of a three-dimensional replica of pores in the initial opal lattice have been synthesized by high-temperature thermochemical treatment of opal matrices filled with ...

    G. A. Emel’chenko, V. M. Masalov, A. A. Zhokhov… in Physics of the Solid State (2011)

  14. No Access

    Article

    Photoluminescence properties of core-shell SiO2/Lu2O3: Eu monodisperse heteronanoparticles

    Core-shell monodisperse heteroparticles of the composition SiO2/Lu1.86Eu0.14O3 have been synthesized using the developed technique for preparing spherical colloidal silicon dioxide particles with the size dispers...

    A. N. Gruzintsev, G. A. Emel’chenko, Yu. V. Yermolayeva… in Physics of the Solid State (2010)

  15. No Access

    Article

    Synthesis and features of the structure and luminescence of monodisperse SiO2/(Lu1 − x Eu x )2O3 (x = 0.07) core-shell heteroparticles

    Monodisperse SiO2/Lu1.86Eu0.14O3 core-shell heteroparticles have been obtained using a method developed previously for the synthesis of spherical colloidal particles of silicon dioxide with a size spread of 2–2.5...

    Yu. V. Ermolaeva, V. M. Masalov, A. N. Gruzintsev… in Technical Physics Letters (2010)

  16. No Access

    Article

    Three-dimensional periodic lattice of ZrO2 nanocrystals in transparent silica matrix

    The conditions for synthesizing an opal-zirconia-carbon nanocomposite in the form of monolithic (without pores) transparent silica with an ordered distribution of nanocrystals throughout the sample have been d...

    V. M. Masalov, A. A. Zhokhov, V. S. Gorelik, E. A. Kudrenko… in Physics of the Solid State (2010)

  17. No Access

    Article

    Mössbauer and X-ray studies of the structural phase transformations and suppression of polymorphism in La1 − x Sr x Mn0.98Fe0.02O3 + δ (x = 0.05−0.30)

    The specific features of the structural transformations in La1 − x Sr x Mn0.98Fe0.02O3 + δ (x = 0.05−0.30) as functions of the Sr content have been invest...

    V. D. Sedykh, I. I. Zver’kova, V. Sh. Shekhtman… in Physics of the Solid State (2010)

  18. No Access

    Article

    Synthesis of α-SiC nanocrystals by carbothermal reduction of spherical nanoparticles of amorphous silicon dioxide

    The method for carbothermal reduction of spherical particles of amorphous silicon dioxide is developed, and hexagonal α-SiC polytype nanocrystals are synthesized. The prepared samples are characterized by X-ra...

    A. A. Zhokhov, V. M. Masalov, D. V. Matveev, M. Yu. Maksimuk… in Physics of the Solid State (2009)

  19. No Access

    Article

    Mössbauer and X-Ray studies of the dynamics of phase transformations and suppression of polymorphism in the LaMn1 − x Fe x O3 + δ compound (x = 0.015–0.500)

    The effect of iron impurity on the structural transformations and the suppression of polymorphism of the LaMn1 − x Fe x O3 + δ compound (x = 0.015–0.500) ...

    V. D. Sedykh, V. Sh. Shekhtman, A. V. Dubovitskiĭ… in Physics of the Solid State (2009)

  20. No Access

    Article

    Dependence of the amount of a nanocrystalline phase in the amorphous Fe80B20 alloy on the degree of severe plastic deformation

    Conditions for the formation of nanocrystals in the amorphous Fe80B20 alloy under the effect of severe plastic deformation (SPD) have been investigated by electron microscopy and X-ray diffraction. The dependence...

    G. E. Abrosimova, A. S. Aronin, S. V. Dobatkin… in The Physics of Metals and Metallography (2008)

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