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  1. Article

    Open Access

    Obtaining Plasma–Dust Clouds from Meteoritic Matter, its Analogs and Simulants of Lunar Regolith Using Microwave Discharge

    In the experiment, plasma–dust clouds were obtained from the substance of the Tsarev meteorite, a simulant of lunar regolith LMS-1D and ilmenite concentrate using a microwave discharge in powder media. For eac...

    V. D. Borzosekov, N. S. Akhmadullina, A. S. Sokolov… in Solar System Research (2024)

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  2. No Access

    Article

    Ni and Ni–Co Catalysts Based on Mixed Ce–Zr Oxides Synthesized in Isopropanol Medium for Dry Reforming of Methane

    Single-phase Ce–Zr oxides with a fluorite structure were synthesized by the solvothermal method in an isopropanol medium. Synthesis was performed at the supercritical parameters of isopropanol. The effect of t...

    Yu. N. Bespalko, V. E. Fedorova, E. A. Smal… in Russian Journal of Physical Chemistry B (2022)

  3. No Access

    Article

    Effect of Gadolinium Additives on the Active Phase Morphology and Physicochemical and Catalytic Properties of MoVSbNbGdOx/SiO2 Catalysts in the Oxidative Dehydrogenation of Ethane to Ethylene

    The effect of gadolinium additives on the morphology, phase composition, and catalytic properties of MoVSbNbGdOx/SiO2 catalysts in the oxidative dehydrogenation of ethane to ethylene (ODE) is studied. It is shown...

    G. A. Zenkovets, A. A. Shutilov, V. M. Bondareva, V. I. Sobolev… in Kinetics and Catalysis (2022)

  4. No Access

    Article

    Effects of the Synthesis Temperature on the Intrinsic Luminescence in g-C3N4

    Samples of graphite-like carbon nitride g-C3N4 are synthesized via the thermal annealing of urea in air at temperatures of 450–600°C. The relationship between the structural and morphological features of the mate...

    N. A. Martemyanov, I. N. Ilyashenko… in Bulletin of the Russian Academy of Science… (2022)

  5. No Access

    Article

    Luminescent Properties of Sapphire Single Crystals Irradiated with a Pulsed Fe10+ Ion Beam

    The optical and luminescent properties of sapphire single crystals irradiated by a pulsed Fe10+ ion beam with an energy of 200 keV are studied. The results of measurements of optical absorption, photoluminescence...

    G. R. Ramazanova, D. V. Ananchenko, S. V. Nikiforov… in Optics and Spectroscopy (2021)

  6. No Access

    Article

    Thermal Decomposition of [Cu(H2O)2(C8H4O4)], [CuNi(H2O)4(C8H4O4)2], and [Ni(H2O)2(C8H4O4)2](H2O)2 with the Formation of Metal and Bimetal Nanoparticles

    A comparison is made of the thermoanalytical characteristics and the composition and structure of solid products of the thermal decomposition of ortho-phthalates [Cu(H2O)2(C8H4O4)], [CuNi(H2O)4(C8H4O4)2], and [Ni...

    L. I. Yudanova, A. V. Ishchenko, N. A. Rudina in Russian Journal of Physical Chemistry A (2021)

  7. No Access

    Article

    Synthesis and Optical Properties of YAG : Ce Ceramics with a High Cerium Concentration

    Samples of YAG : Се optical ceramics with an activator concentration of 0.5, 1, 5, and 10 at. % were synthesized by a solid-phase method. The synthesis of the samples containing 10 at. % Ce was accompanied by ...

    K. E. Lukyashin, A. V. Ishchenko in Russian Journal of Inorganic Chemistry (2021)

  8. No Access

    Article

    Mechanochemical Synthesis of Apatite with the Simultaneous Substitutions of Calcium by Lanthanum and Phosphate by Silicate

    Some results on the mechanochemical synthesis of apatites with simultaneous substitutions of calcium by lanthanum and of phosphate by silicate are presented. The reagents of reaction mixtures are taken such th...

    S. V. Makarova, N. V. Bulina, I. Yu. Prosanov… in Russian Journal of Inorganic Chemistry (2020)

  9. No Access

    Article

    Quantum Size Effect in Bimetallic Nanoparticles Obtained via Thermolysis of Solid Solutions of Co(II), Ni(II), Zn(II) Salts of Maleic Acid

    Powder X-ray diffraction and the thermoanalytical characteristics of solid solutions with compositions [(CoxNi1 – x)(H2O)4(C4H3O4)2], [(CoxZn1 – x)(H2O)4(C4H3O4)2], [(NixZn1 – x)(H2O)4(C4H3O4)2] (0 < x < 1) are c...

    L. I. Yudanova, V. A. Logvinenko… in Russian Journal of Physical Chemistry A (2020)

  10. No Access

    Article

    ZnS Nanopowders and ZnS/Ag2S Heteronanostructures: Synthesis and Properties

    Zinc sulfide ZnS nanopowders were prepared by chemical deposition from aqueous solutions of zinc nitrate and sodium sulfide in the presence of sodium citrate or Trilon B. ZnS/Ag2S heteronanostructures were prepar...

    S. I. Sadovnikov, A. V. Ishchenko… in Russian Journal of Inorganic Chemistry (2020)

  11. No Access

    Article

    Effect of the Conditions of Solution Combustion Synthesis on the Properties of Monolithic Pt–MnOx Catalysts for Deep Oxidation of Hydrocarbons

    Catalysts based on manganese oxides, doped with Pt, and supported on ceramic monoliths with a honeycomb structure were produced by impregnation and solution combustion synthesis (SCS). In SCS, glycine was used...

    N. V. Shikina, S. A. Yashnik, A. A. Gavrilova, O. A. Nikolaeva… in Kinetics and Catalysis (2020)

  12. No Access

    Article

    Oxidative Dehydrogenation of Ethane on VMoTeNbО/SiO2 Catalysts and the Effect of the Initial Support Compound on Their Physicochemical and Catalytic Properties

    Silica-supported catalysts of cation composition V0,3Mo1Te0,23Nb0,12 are produced using slurry method with the nature of the initial compound for the support (TEOS, silica sol, silica gel, aerosil) being varied. ...

    V. M. Bondareva, E. V. Lazareva, T. Yu. Kardash, A. V. Ishchenko… in Catalysis in Industry (2020)

  13. No Access

    Article

    Electrophysical Properties of Composites Based on Polyethylene Modified with Multi-Walled Carbon Nanotubes with High Content of Fe–Co-Catalyst

    The effect of the residual catalyst for the synthesis of multi-walled carbon nanotubes (MWCNTs) on the electrophysical properties of MWCNT–polyethylene composites produced by melt mechanical mixing was studied...

    S. I. Moseenkov, V. L. Kuznetsov, A. V. Zavorin… in Russian Journal of Applied Chemistry (2020)

  14. No Access

    Article

    Chemical Vapor Deposition of Silicon Nanoparticles on the Surface of Multiwalled Carbon Nanotubes

    Chemical vapor deposition (CVD) along with thermal decomposition of monosilane (SiH4) in a fluidized bed of multiwalled carbon nanotubes (MWCNTs) is used to prepare MWCNT-Si composites containing silicon nanopart...

    A. V. Zavorin, V. L. Kuznetsov, S. I. Moseenkov… in Journal of Structural Chemistry (2020)

  15. No Access

    Article

    Structure Formation of Zinc-Substituted Hydroxyapatite during Mechanochemical Synthesis

    Zinc-substituted hydroxyapatite samples with a preset degree of substitution (Са10 –хZnx(PO4)6(OH)2, x = 0.1–2.0) have been synthesized by a mechanochemical method. The composition of starting components ((Zn(H2P...

    M. V. Chaikina, N. V. Bulina, I. Yu. Prosanov, O. B. Vinokurova… in Inorganic Materials (2020)

  16. No Access

    Article

    Mono-, Bi-, and Trimetallic Catalysts for the Synthesis of Multiwalled Carbon Nanotubes Based on Iron Subgroup Metals

    Formation features of mono- (Fe, Co, Ni), bi- (Fe-Co, Fe-Ni, Co-Ni), and trimetallic (Fe-Co-Ni) catalysts for the synthesis of multiwalled carbon nanotubes (MWCNTs) prepared by the method of polymerized comple...

    G. V. Golubtsov, M. A. Kazakova, A. G. Selyutin… in Journal of Structural Chemistry (2020)

  17. No Access

    Article

    Using Current-Voltage Characteristics to Control the Structure of Contacts in Polyethylene Based Composites Modified by Multiwalled Carbon Nanotubes

    The conductivity of three types of composites prepared by mechanical melt mixing from polyethylene (PE) and multi-walled carbon nanotubes (MWCNTs) with an average diameter of 9.8 nm and an aspect ratio of ∼300...

    S. I. Moseenkov, A. V. Zavorin, A. V. Ishchenko… in Journal of Structural Chemistry (2020)

  18. No Access

    Article

    Synthesis and Luminescence Properties of Tb3+-Doped Aluminum Oxynitride

    We report an experimental study concerned with the synthesis and luminescence properties of Al5O6N aluminum oxynitride doped with Tb3+ in the concentration range 0.025–0.5 at %. All of the samples, prepared by fi...

    N. S. Akhmadullina, A. V. Ishchenko, V. V. Yagodin, A. S. Lysenkov… in Inorganic Materials (2019)

  19. No Access

    Article

    Morphological, Structural, and Catalytic Properties of Pd–CeO2/Al2O3 Compositions and Thereof Coatings in the Oxidation of Methane

    The morphological and structural properties of Pd–CeO2/Al2O3 catalytic compositions annealed at 100, 500, and 1000°С are studied, along with thereof coatings deposited on metallic foil via cold gas dynamic sprayi...

    N. V. Shikina, O. Yu. Podyacheva, A. V. Ishchenko, S. R. Khairulin… in Catalysis in Industry (2019)

  20. No Access

    Article

    In situ Study of Structural Transformations of the Active Phase of VMoNbTeO Catalysts under Reduction Conditions

    VMoNbTeO catalysts show high activity in the reactions of selective oxidation of ethane and propane. Time-resolved X-ray diffraction is used to study structural transformations of a mixed oxide with the compos...

    T. Yu. Kardash, A. S. Marchuk, A. V. Ishchenko… in Journal of Structural Chemistry (2019)

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