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  1. No Access

    Article

    Technology of Nanocomposites Preparation for Sorption Purification of Aqueous Media

    A technique is described for the preparation of a universal composite nanomaterial for effective sorption purification of water from pollutants of different chemical nature. The proposed material is a nanocomp...

    T. S. Kuznetsova, I. V. Burakova, T. V. Pasko… in Inorganic Materials: Applied Research (2022)

  2. No Access

    Article

    Magnetically active nanocomposite aerogels: preparation, characterization and application for water treatment

    Magnetically active nanocomposite aerogels were prepared, characterized and used for water treatment. These materials were characterized by SEM, TEM, XRD, FT-IR and BET methods. These materials have ferromagne...

    Imran Ali, E. A. Neskoromnaya, A. V. Melezhik, A. V. Babkin… in Journal of Porous Materials (2022)

  3. No Access

    Article

    Platinum nanoparticles supported on nitrogen-doped carbons as electrocatalysts for oxygen reduction reaction

    Behavior of Pt/C catalysts obtained by the platinum deposition on standard and nitrogen-doped carbon supports with different microstructure has been studied in the oxygen electroreduction reaction in an acidic...

    E. A. Moguchikh, K. O. Paperzh, A. A. Alekseenko… in Journal of Applied Electrochemistry (2022)

  4. No Access

    Article

    Results of Chemical Activation of Biochar Obtained by the Method of Accelerated Hydrothermal Carbonization of Sewage Sludge

    An investigation has been made into accelerated hydrothermal fluidized carbonization of sewage sludge in a superheated steam medium. It is shown that an increase in the process temperature has no effect on its...

    N. S. Muratova, R. L. Is’emin… in Journal of Engineering Physics and Thermop… (2021)

  5. No Access

    Article

    Photooxidative Resistance of Polytetrafluoroethylene–Graphene Nanocomposites to Vacuum Ultraviolet Radiation

    The process of photooxidation of polytetrafluoroethylene composites with graphene by irradiation with monochromatic vacuum ultraviolet light at a wavelength of 123.6 nm from a resonant krypton lamp in the pres...

    V. N. Vasilets, Yu. M. Shulga, E. N. Kabachkov, A. V. Melezhik… in High Energy Chemistry (2021)

  6. No Access

    Article

    Production of Ferromagnetic Adsorbents from Solid Products of Biowaste Carbonization in a Fluidized Bed in a Medium of Superheated Water Vapor

    Consideration has been given to problems of chemical activation of a solid product of hydrothermal carbonization (hydrochar) of biomass. Pellets from a mixture of poultry litter and straw subjected to carboniz...

    N. S. Muratova, S. N. Kuz’min… in Journal of Engineering Physics and Thermop… (2021)

  7. No Access

    Article

    The Synergistic Effect of a Hybrid Filler Based on Graphene Nanoplates and Multiwalled Nanotubes for Increasing the Thermal Conductivity of an Epoxy Composite

    A hybrid heat-conducting filler based on graphene nanoplates and multiwalled carbon nanotubes for increasing the thermal conductivity of an epoxy binder has been synthesized, which exhibits a synergistic effec...

    T. A. Shalygina, A. V. Melezhik, A. G. Tkachev… in Technical Physics Letters (2021)

  8. No Access

    Article

    Synthesis and Evaluation of Adsorption Properties of Reduced Graphene Oxide Hydro- and Aerogels Modified by Iron Oxide Nanoparticles

    The synthesis of a nanocomposite material based on graphene modified with iron oxide nanoparticles, which is an effective sorbent of organic pollutants contained in aqueous media, has been considered. The prod...

    E. A. Neskoromnaya, A. E. Burakov, A. V. Melezhik… in Inorganic Materials: Applied Research (2020)

  9. No Access

    Chapter and Conference Paper

    Fabrication and Pulsed Laser Modification of Antireflective Composite Materials for the Visible and Near-IR Ranges

    A pulsed laser treatment method has been developed and demonstrated for the formation of antireflection coatings based on composite materials with carbon nanotubes. The influence of structure surface of compos...

    F. F. Komarov, I. D. Parfimovich… in Microstructure and Properties of Micro- an… (2020)

  10. No Access

    Article

    Methane Adsorption in Microporous Carbon Adsorbent with a Bimodal Pore Size Distribution

    Methane adsorption in MPU-007 microporous carbon adsorbent with a wide pore size distribution was studied at a pressure as high as 40 MPa and the temperatures of 303, 313, 323, and 333 K. The maximum value of ...

    A. A. Fomkin, A. A. Pribylov, A. G. Tkachev… in Protection of Metals and Physical Chemistr… (2020)

  11. No Access

    Article

    The Influence of the Structural and Energetic Characteristics of the Microporous Structure of Carbon Adsorbents on Hydrogen Adsorption

    A new carbon microporous adsorbent denoted as MPU-007 with a specific micropore volume as large as 1.44 cm3/g has been synthesized. Hydrogen adsorption on this adsorbent has been studied at temperatures of 303, 3...

    A. A. Fomkin, A. A. Pribylov, A. G. Tkachev, N. R. Memetov… in Colloid Journal (2019)

  12. No Access

    Article

    Structure and Thermophysical Characteristics of Polytetrafluoroethylene Composites with Few-Layer Graphene Nanoplatelets

    The structure, composition, and thermophysical properties of a PTFE composite with few-layer graphene nanoplatelets have been studied by IR spectroscopy, Raman spectroscopy, and differential scanning calorimet...

    V. N. Vasilets, Yu. M. Shulga, A. V. Irzhak, A. V. Melezhik… in High Energy Chemistry (2019)

  13. No Access

    Article

    Characterisation and electrical conductivity of polytetrafluoroethylene/graphite nanoplatelets composite films

    Graphite nanoplatelets (GNPs), with a thickness of 3–10 graphene layers and lateral linear dimensions varying from 2 to 10 μm, were used to enhance the conductivity of polytetrafluoroethylene (PTFE) films. Ten...

    Y. M. Shulga, A. V. Melezhik, E. N. Kabachkov, F. O. Milovich… in Applied Physics A (2019)

  14. No Access

    Article

    New Approach to Creating Superhydrophobic Surfaces

    A new approach to the creation of superhydrophobic surfaces is proposed. The principle of the method is based on the phase separation in a composite, one of the components of which “pushes” another component o...

    Yu. M. Shulga, A. V. Melezhik, E. N. Kabachkov, F. O. Milovich… in High Energy Chemistry (2019)

  15. No Access

    Article

    Mechanochemical synthesis of graphene nanoplatelets from expanded graphite compound

    Mechanochemical exfoliation of graphite materials is one method for obtaining graphene nanoplatelets. The mechanochemical synthesis of graphene nanoplatelets, which includes the synthesis of an expanded graphi...

    A. V. Melezhik, V. F. Pershin, N. R. Memetov, A. G. Tkachev in Nanotechnologies in Russia (2016)

  16. No Access

    Article

    Synthesis of carbon nanotubes from acetone

    The process of synthesizing carbon nanotubes (CNTs) using the method of catalytic gas-phase pyrolysis has been studied using acetone as a source of carbon. CNTs with outer diameters of 8–10 nm were prepared. T...

    A. V. Melezhik, M. A. Smykov… in Theoretical Foundations of Chemical Engine… (2013)

  17. No Access

    Article

    Synthesis of multi-walled carbon nanotube bundles on the Fe-Co-Mo/Al2O3 catalyst

    The Fe-Co-Mo/Al2O3 catalyst was synthesized by “wet combustion” with the use of metal nitrates and citric acid. Multi-walled carbon nanotubes obtained by the catalytic pyrolysis of propylene were shown to grow on...

    A. G. Tkachev, A. V. Melezhik, M. A. Smykov… in Theoretical Foundations of Chemical Engine… (2012)

  18. No Access

    Article

    Effect of the matrix composition on the activity of metal oxide catalysts in CVD synthesis of carbon nanotubes

    Citrate-nitrate method was used to synthesize (Fe,Co)/MgO-Al2O3, (Fe,Mo)/MgO-Al2O3, and (CoMo)/MgO-Al2O3 catalysts for production of carbon nanotubes. Multi-walled nanotubes were formed on these catalysts by cata...

    A. V. Melezhik, I. V. Romantsova, T. P. D’yachkova… in Russian Journal of Applied Chemistry (2012)

  19. No Access

    Chapter

    Physicochemical Properties and Biocompatibility of Polymer/Carbon Nanotubes Composites

    Due to the unique structure and combination of extremely high durability, electrical and calorific conductivities, carbon nanotubes (CNTs) are prospective fillers for polymer materials. The reinforcement of po...

    Yu. I. Sementsov, G. P. Prikhod’ko… in Nanomaterials and Supramolecular Structures (2010)

  20. No Access

    Article

    Carbon Nanotubes as Catalyst Supports for Oxygen Electrodes

    Carbon nanotubes modified with manganese dioxide were prepared. Manganese dioxide was deposited by reduction of KMnO4 in solution using formic acid or nanotube carbon. The electrochemical properties of oxygen ele...

    M. O. Danilov, A. V. Melezhik, N. I. Danilenko in Russian Journal of Applied Chemistry (2005)

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