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  1. No Access

    Article

    Surface Structural Features of Two-Dimensional Layered Materials Ti3C2Tx (T = OH, O, F) Investigated by Infrared and Raman Spectroscopy

    Surface features of layered Ti3C2Tx (T = OH–, O2–, F–) materials obtained as powder and two-dimensional (2D) particles forming a stable colloidal solution were characterized by infrared (IR) and Raman spectroscop...

    M. I. Ivanovskaya, E. A. Ovodok, S. K. Poznyak… in Journal of Applied Spectroscopy (2022)

  2. No Access

    Article

    Infrared Spectroscopy of Ultrablack Films Based on Electrodeposited Ni–P Alloys

    Ultrablack films produced by etching electrodeposited Ni–P (5.5 at% P) coatings in an oxidizing medium were studied by infrared spectroscopy. It was shown that nickel phosphates and pyrophosphates of different...

    S. S. Perevoznikov, M. I. Ivanovskaya… in Journal of Applied Spectroscopy (2014)

  3. No Access

    Article

    Nature of paramagnetic centers in anodic aluminum oxide formed in a solution of tartaric acid

    Films of anodic aluminum oxide, prepared in an aqueous solution of 0.4 M tartaric acid, are studied by means of electron paramagnetic resonance (EPR) before and after heating at 200–700°C. The presence of a ca...

    K. V. Chernyakova, M. I. Ivanovskaya… in Russian Journal of Physical Chemistry A (2012)

  4. No Access

    Article

    Impurity-defect structure of anodic aluminum oxide produced by two-sided anodizing in tartaric acid

    Porous aluminum oxide is prepared in a 0.4 M aqueous solution of tartaric acid by two-sided anodizing. Fourier Transform IR spectroscopy (FTIR) data reveal the presence, in the alumina, of unoxidized tartarate...

    K. V. Chernyakova, I. A. Vrublevsky, M. I. Ivanovskaya… in Journal of Applied Spectroscopy (2012)

  5. No Access

    Article

    Interaction of carbon monoxide with In2O3 and In2O3-Au nanocomposite

    This is an IR spectroscopic study of the interaction of CO with In2O3 and the nanocomposite In2O3-Au. A mechanism for low-temperature detection of CO on nanocomposite In2O3-Au can be determined from these data. T...

    M. I. Ivanovskaya, E. A. Ovodok, D. A. Kotsikau in Journal of Applied Spectroscopy (2012)

  6. No Access

    Article

    Sol-gel synthesis and features of the structure of Au-In2O3 nanocomposites

    The specific features of the chemical state of gold and indium oxide in Au-In2O3 (0.01–1.0 wt % Au) nanocomposites have been investigated by the methods of X-ray diffraction analysis, electron microscopy, infrare...

    M. I. Ivanovskaya, E. A. Ovodok, D. A. Kotsikau in Glass Physics and Chemistry (2011)

  7. No Access

    Article

    Gas-sensitivity properties of nanoscale Au-In2O3 materials

    A possibility was demonstrated of producing the chemical sensors based on Au-In2O3 obtained using a sol-gel technology. The sensors exhibit high sensitivity and selectivity toward CO. The differences in gas-sensi...

    M. I. Ivanovskaya, E. A. Ovodok, D. A. Kotikov in Russian Journal of General Chemistry (2011)

  8. No Access

    Article

    Magnetic nanostructures based on nanoclusters of iron oxides

    Using magnetization and Mössbauer spectroscopy, investigations of the magnetic properties of α-Fe2O3-SiO2 and γ-Fe2O3-SiO2 nanostructures, including α-Fe2O3 nanoclusters 2 nm in size and γ-Fe2O3 nanoclusters 3–4 ...

    I. P. Suzdalev, Yu. V. Maksimov, V. K. Imshennik… in Nanotechnologies in Russia (2010)

  9. No Access

    Article

    Structure and magnetic properties of the nanocomposites γ-Fe2O3-SiO2

    The structural features and magnetic properties of composite materials Fe2O3-SiO2 consisting of γ-Fe2O3 nanoparticles in an amorphous porous matrix of SiO2 were considered. The studied samples were synthesized by...

    M. I. Ivanovskaya, D. A. Kotikov, V. V. Pan’kov… in Russian Journal of General Chemistry (2010)

  10. No Access

    Article

    The dependence of the conductivity of SiO2-γ-Fe2O3 film composites on air humidity

    The influence of humidity on the electrophysical characteristics of SiO2-γ-Fe2O3 film composites prepared by the sol-gel method was studied. The conductivity of the composites in air at room temperature was large...

    A. V. Adakimchik, N. I. Gorbachuk… in Russian Journal of Physical Chemistry A (2010)

  11. No Access

    Article

    Synthesis of Zn0.5Mn0.5Fe2O4 by low-temperature spray pyrolysis

    The effect of synthesis temperature on the structural perfection of the Zn0.5Mn0.5Fe2O4 ferrite synthesized via spray pyrolysis of a solution of Zn(II), Mn(II), and Fe(III) nitrates has been studied using X-ray d...

    M. I. Ivanovskaya, A. I. Tolstik, V. V. Pan’kov in Inorganic Materials (2009)

  12. No Access

    Article

    Structure of SrCo0.5Fe0.5O3 − δ-based composites prepared by sol-gel and mechanochemical processes

    X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and Mössbauer spectroscopy have been used to investigate the structural phase transformations of SrCo0.5Fe0.5O3 − δ-based mixed-o...

    M. I. Ivanovskaya, D. A. Kotikov, V. V. Pan’kov, V. V. Zyryanov in Inorganic Materials (2009)

  13. No Access

    Article

    The structural characteristics of Zn-Mn ferrite synthesized by spray pyrolysis

    The applicability of IR spectroscopy in studies of the structural characteristics of the ferrite spinel phase was shown for Zn0.5Mn0.5Fe2O4 samples prepared by the pyrolysis of aerosols of aqueous solutions of me...

    M. I. Ivanovskaya, A. I. Tolstik, D. A. Kotsikau… in Russian Journal of Physical Chemistry A (2009)

  14. No Access

    Article

    The influence of structural factors on the gas-sensitive properties of Fe2O3-SnO2

    The influence of the dispersity and structural and phase state of oxide materials based on Fe2O3 and SnO2 on the gas-sensitive properties of these materials used as sensitive layers in chemical sensors was consid...

    M. I. Ivanovskaya, D. A. Kotikov, D. R. Orlik in Russian Journal of Physical Chemistry A (2008)

  15. No Access

    Article

    Nature and conditions of formation of structural defects in zirconium(IV) oxide in the course of its preparation from zirconium hydroxide

    The nature of paramagnetic defects in nanosized ZrO2 samples prepared by the sol-gel method was studied by ESR. Conditions of formation of different centers (Zr3+, F centers, O−, O 2 ...

    M. I. Ivanovskaya, E. V. Frolova in Russian Journal of General Chemistry (2007)

  16. No Access

    Article

    Methane oxidation over nanocrystalline Ce0.45Zr0.45La0.10O2-δ/Pt and Ce0.9Sm0.1O2-δ/Pt anodes

    The electrocatalytic activity of composite anodes, comprising metallic platinum and nanocrystalline Pt-modified Ce0.45Zr0.45La0.10O2-δ and Ce0.9Sm0.1O2-δ , was evaluated for the oxidation of dry methane in a soli...

    A. A. Yaremchenko, V. V. Kharton, A. A. Valente, E. V. Frolova… in Catalysis Letters (2006)

  17. No Access

    Article

    Mechanochemical Synthesis of Crystalline Compounds in the Bi2O3–GeO2 System

    Crystalline mechanochemical synthesis products in the Bi2O3–GeO2 system are studied by x-ray diffraction. The results indicate the formation of sillenite (Bi12GeO20), eulytite (Bi4Ge3O12), and Aurivillius (Bi2GeO

    V. V. Zyryanov, V. I. Smirnov, M. I. Ivanovskaya in Inorganic Materials (2005)

  18. No Access

    Article

    Mechanochemical synthesis, structure, and properties of nanocrystalline metastable perovskites and fluorites for catalytic membrane reactors

    Nanosized powders of conductive complex fluorites based on δ-Bi2O3 and perovskites based on LnMnO3, SrFeO3, LnGaO3 have been obtained by mechanochemical synthesis. Complex do** was used for kinetic stabilizatio...

    V. V. Zyryanov, N. F. Uvarov, V. A. Sadykov… in Journal of Structural Chemistry (2004)