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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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Article
Synthesis of Porous Carbon Nanofibers on Catalysts Fabricated by the Mechanochemical Method
A mechanochemical method for fabrication of catalysts for vapor-phase deposition of porous carbon nanofibers from acetylene is suggested.
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Article
Synthesis of Fine Carbon Nanotubes on Coprecipitated Metal Oxide Catalysts
Catalysts for vapor-phase deposition of multi-walled carbon nanotubes are considered. A method for synthesis of iron-containing catalyst by coprecipitation of aluminum, magnesium, and iron(II) hydroxides is su...