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A New Strategy for the Synthesis of Highly Active Catalysts Based on g-C3N4 for Photocatalytic Production of Hydrogen under Visible Light Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-02-28 K. O. Potapenko, S. V. Cherepanova, E. A. Kozlova
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Quantization of Electrical Conductance in Layered Zr/ZrO2/Au Memristive Structures Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-02-28 A. S. Vokhmintsev, I. A. Petrenyov, R. V. Kamalov, M. S. Karabanalov, I. A. Weinstein, A. A. Rempel
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Phase Equilibria in the Li–Mn–Eu–O System Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-01-31
Abstract Phase equilibria in the Li–Mn–Eu–O system were studied for the first time in the temperature range 700–1000°С, and a concentration diagram was constructed within the Li–Mn–Eu triangle at an oxygen partial pressure of 21 kPa. It was shown that the LiEuO2–Li2MnO3 section can be represented as quasi-binary, unlike the sections LiEuO2–LiMnO2 and LiEuO2–LiMn2O4. It was determined that the isomorphic
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Information Entropy of Catalytic Reaction Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-01-31 A. D. Zimina, A. A. Tukhbatullina, D. Sh. Sabirov
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Effect of pH on Supramolecular Assemblies in Fulvic Acid Solutions Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-01-20 G. N. Fedotov, S. A. Shoba, I. V. Gorepekin, O. A. Salimgareeva, A. I. Sukharev, T. A. Gracheva
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Concentration Tetrahedron of the Li–Mn–Eu–O System Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-01-10 G. A. Buzanov, G. D. Nipan
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Self-Propagating High-Temperature Synthesis of High-Entropy Carbides in the Gasless Thermal Explosion Mode Dokl. Phys. Chem. (IF 0.9) Pub Date : 2024-01-10
Abstract High-entropy carbides are a new class of inorganic compounds promising for a wide range of applications. A new concept was proposed for the synthesis of powders of high-entropy carbides by self-propagating high-temperature synthesis (SHS) in the gasless thermal explosion mode from previously mechanically synthesized and structured reaction mixtures. For the first time, high-entropy carbides
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Nonequilibrium Nuclear Spin States of Ethylene during Acetylene Hydrogenation with Parahydrogen over Immobilized Iridium Complexes Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-12-25 I. V. Skovpin, S. V. Sviyazov, D. B. Burueva, L. M. Kovtunova, A. V. Nartova, R. I. Kvon, V. I. Bukhtiyarov, I. V. Koptyug
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New Concepts of Colloid Chemistry: Nano-Adsorbent as a Solvent Component and Adsorption Protomicelle Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-12-25 A. I. Rusanov, T. G. Movchan, E. V. Plotnikova
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3-Amino-4-azido-1,2,5-oxadiazole: Synthesis, Structural Characterization, and Physicochemical Properties Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-11-01
Abstract The synthesis verification of 3-amino-4-azido-1,2,5-oxadiazole and its structural characterization by IR, NMR spectroscopy, X-ray diffraction, and elemental analysis have been carried out. Its thermal behavior (TG-DSC), standard enthalpy of formation, sensitivity to mechanical stimuli, and detonation parameters have been studied. Our study has revealed the broad prospects of 3-amino-4-azidofurazan
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Insight into Corrosion Inhibition Efficiency of Imidazole-Based Molecules: A Quantum Chemical Study Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-10-07 Dyari M. Mamad, Hazhar H. Rasul, Awat H. Awla, Rebaz A. Omer
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Kinetics of Esterification of Ammonium Lactate with n-Butanol Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-10-07 V. P. Meshalkin, M. R. Kozlovskii, R. A. Kozlovskii, I. A. Kozlovskii, Ya. A. Ibatov, M. S. Voronov
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State Diagram of the ZrO2–SiO2–Al2O3 System with Visualization by Computer 3D-Model and Calculation Using the NUCLEA Database Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-10-07 V. P. Vorob’eva, A. E. Zelenaya, V. I. Lutsyk, V. A. Vorozhtcov, V. I. Almjashev, V. L. Stolyarova
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Computer Simulation of a Biphasic Catalytic Process in the Presence of Polymer Microgels Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-09-01
Abstract The reaction of a biphasic catalysis with microgels bearing catalytic groups adsorbed at liquid interface was simulated for the first time using dissipative particle dynamics. It was shown that the rate of the catalytic process increases with the degree of deformation of the polymer network, which depends on the fraction of the crosslinker and the solubility of the polymer in both phases.
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Effect of Intramolecular Donor-Acceptor Interactions on the Radiolysis of Organic Compounds: Effects in Acetylacetone Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-08-11 S. I. Vlasov, A. V. Ponomarev, B. G. Ershov
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Efficient Approach to the Preparation of Flame-Retardant Nanocomposite Polymeric Materials Based on High Density Polyethylene and Magnesium Hydroxide Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-08-11 O. V. Arzhakova, A. A. Dolgova, A. Yu. Kopnov, A. Yu. Yarysheva, A. L. Volynskii
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Preparation of a New Hard-Elastic Polymeric Material Based on Ultra-High-Molecular-Weight Polyethylene Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-08-11 O. V. Arzhakova, A. Yu. Yarysheva, A. I. Nazarov, A. A. Dolgova, A. L. Volynskii
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Diffusion-Bubbling Membranes: Thermodynamics and Mass Transport. A Review Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-08-10 V. V. Belousov
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Thermal and Heterogeneous Catalytic Conversion of Hydrolysis Lignin in 1,4-Dioxane Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-06-28 N. A. Bobrova, A. E. Koklin, T. V. Bogdan, I. I. Mishanin, V. I. Bogdan
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Composite Materials Based on MOF ZIF-8 and Ionic Liquid [BMIm]+[BF4]−: An EPR Study Using Nitroxide Spin Probes Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-06-28 N. A. Kudryavyh, M. Yu. Ivanov, A. S. Poryvaev, D. M. Polyukhov, R. Z. Sagdeev, M. V. Fedin
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Disjoining Pressure in Thin Spherical Liquid Films and Vapor Layers with Molecular Correlations Included Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-06-28 A. K. Shchekin, L. A. Gosteva
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Aqueous-Phase Hydrogenation of Furfural in the Presence of Supported Metal Catalysts of Different Types. A Review Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-06-28 R. M. Mironenko, O. B. Belskaya, V. A. Likholobov
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Quantum-Chemical Study of Keto–Enol Equilibrium and Global Electrophilicity of Hydroxymaleimide Derivatives Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-05-24 A. A. Panov
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Absorption and Luminescence Properties of Bis-thiacarbocyanine in the Presence of Cucurbit[7,8]urils in Water Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-05-24 T. V. Fedotova, G. V. Zakharova, A. K. Chibisov
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Complexes of Citrus Pectin with Nifedipine: Preparation and Physicochemical Properties Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-05-24 S. T. Minzanova, E. V. Chekunkov, A. V. Khabibullina, D. M. Arkhipova, L. G. Mironova, A. R. Khamatgalimov, V. A. Milyukov, V. F. Mironov
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Ionic Liquids—New Gas Chromatographic Phases with Unique Properties. A Review Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-05-24 M. V. Shashkov, V. N. Sidelnikov, V. N. Parmon
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New Approaches to the Synthesis of Ultralow-Palladium Automotive Emission Control Catalysts Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-02-20 T. N. Rostovshchikova, M. I. Shilina, S. A. Gurevich, D. A. Yavsin, G. B. Veselov, A. A. Vedyagin
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Iridium-Containing Automotive Emission Control Catalysts Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-02-20 A. A. Vedyagin, V. O. Stoyanovskii, R. M. Kenzhin, P. E. Plyusnin, Yu. V. Shubin
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Palladium-Based Electroactive Materials for Environmental Catalysis Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-02-20 N. A. Faddeev, A. B. Kuriganova, I. N. Leont’ev, N. V. Smirnova
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Utilization of Acetone, By-Product of Cumene Process for Phenol Production, via BaSnO3-Catalyzed Aldol Condensation Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-02-20 T. V. Bogdan, P. A. Krasnikov, A. V. Smirnov, A. E. Koklin, N. V. Mashchenko, V. I. Bogdan
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Catalysts for Low-Temperature CO Oxidation Based on Platinum, CeO2, and Carbon Nanotubes Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-31 L. S. Kibis, A. N. Korobova, A. V. Zadesenets, A. V. Romanenko, T. Yu. Kardash, O. A. Stonkus, S. V. Korenev, O. Yu. Podyacheva, E. M. Slavinskaya, A. I. Boronin
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Effect of the Type of Active Component–Support Interaction on the Low-Temperature Activity of Metal–Oxide Catalysts in CO Oxidation Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-31 A. I. Stadnichenko, E. M. Slavinskaya, E. D. Fakhrutdinova, T. Yu. Kardash, V. A. Svetlichnyi, A. I. Boronin
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Bis(1-naphthylimino)acenaphthene: Redox Properties and One-Electron Reduction Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-31 V. V. Khrizanforova, T. P. Gerasimova, V. I. Morozov, D. R. Islamov, Yu. H. Budnikova
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Dry Reforming of Methane on Ni-Containing La2O3 and La2O3–Mn2O3 Catalysts: Effect of the Preparation Method Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-31 N. V. Dorofeeva, T. S. Kharlamova, V. La Parola, L. F. Liotta, O. V. Vodyankina
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Relationship of the Impact Sensitivity of Explosives with the Thermal Decomposition Reaction Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-30 G. M. Nazin, B. L. Korsunskii, A. I. Kazakov, A. V. Nabatova, N. G. Samoilenko
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Self-Assembling Polymer Nanocomposites Based on Symmetric Diblock Copolymers: Mesoscopic Modeling Dokl. Phys. Chem. (IF 0.9) Pub Date : 2023-01-30 P. V. Komarov, M. D. Malyshev, P. G. Khalatur, A. R. Khokhlov
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Neural Network Prediction of Interatomic Interaction in Multielement Substances and High-Entropy Alloys: A Review Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-11-02 A. A. Mirzoev, B. R. Gelchinski, A. A. Rempel
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Properties of Solutions of Amphiphilic Diblock and Random Copolymers of 2-Perfluorohexylethyl Methacrylate and 2-Hydroxyethyl Methacrylate and Coatings Based on Them Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-06-20 I. V. Blagodatskikh, O. V. Vyshivannaya, K. E. Chekurov, A. I. Barabanova, A. R. Khokhlov
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Synthesis and Hydrodynamic Behavior of Poly(methacryloylamino galactose) Macromolecules Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-06-20 O. N. Zhuravskaya, O. A. Dommes, O. V. Okatova, E. F. Panarin, G. M. Pavlov
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Transformations of Imidazolium Ionic Liquids under the Influence of 60Co Gamma Radiation Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-06-20 N. P. Tarasova, A. A. Zanin, E. G. Krivoborodov
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Ionic and Phase Compositions of Y2.5Ce0.5Fe2.5Ga2.5O12 Ferrogarnet Powder Produced by Gel Combustion Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-06-20 Yu. A. Teterin, M. N. Smirnova, K. I. Maslakov, A. Yu. Teterin, M. A. Kop’eva, G. E. Nikiforova, V. A. Ketsko
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High-Frequency Electron Transport under Pulsed Mechanical Action on Polypropylene–Graphene Nanoplates Composite Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-04-22 A. I. Aleksandrov, V. G. Shevchenko, A. N. Klyamkina, P. M. Nedorezova, A. N. Ozerin
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Atomistic Calculation of the Melting Point of the High-Entropy Cantor Alloy CoCrFeMnNi Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-04-22 I. A. Balyakin, A. A. Rempel
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Thermodynamic Functions of Europium Hafnate at 0–1300 K and Schottky Anomaly Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-04-22 A. V. Guskov, P. G. Gagarin, V. N. Guskov, A. V. Tyurin, K. S. Gavrichev
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Effect of Titanium Doping of Lithium-Rich Cathode Materials Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-04-22 L. S. Pechen, E. V. Makhonina, A. E. Medvedeva, Yu. A. Politov, I. L. Eremenko
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Effect of Temperature on the Electrorheological Behavior of Porous Chitosan Particles in Polydimethylsiloxane Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-04-22 V. V. Kovaleva, N. M. Kuznetsov, A. Yu. Vdovichenko, Y. D. Zagoskin, T. E. Grigoriev, S. N. Chvalun
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Vaporization Thermodynamics of GeO2 by High-Temperature Mass Spectrometry Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-03-12 A. S. Smirnov, K. G. Smorchkov, N. A. Gribchenkova, A. S. Alikhanyan
Abstract Vaporization of GeO2 (tetragonal and hexagonal) have been studied by the Knudsen effusion method in combination with mass spectrometry in the temperature range 1250–1370 K. It has been demonstrated that the saturated vapor over GeO2 consists of GeO and O2 molecules. Partial pressures of the equilibrium vapor components and their temperature dependences have been determined. The standard enthalpy
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Fracture Pressure in Microdefects of Consolidated Materials Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-03-12 E. M. Morozov, M. I. Alymov
Abstract The effect of the internal pressure of the gas in a pore or a cracklike defect on the critical fracture stress has been studied using fracture mechanics approaches. An analytical expression was derived for the dependence of the critical fracture stress on the internal pressure in the crack. The results of this work can be used in powder metallurgy and additive manufacturing of novel materials
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Preparation and Study of Properties of a New Biocomposite of Chitosan with 5,7-Bis(1-hydroxy-1-trifluoromethyl-2,2,2-trifluoroethyl)-8-hydroxyquinoline Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-03-12 I. S. Chaschin, E. I. Perepelkin, V. I. Dyachenko
Abstract A new bioorganic composite was obtained by impregnation of 5,7-bis(1-hydroxy-1-trifluoromethyl-2,2,2-trifluoroethyl)-8-hydroxyquinoline (FOQ) into chitosan in 60% acetic acid. The resulting complex was found to be highly stable due to hydrogen bonding between the amino groups of chitosan and the highly acidic OH groups of FOQ. This composite inhibited the growth of gram-positive and gram-negative
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Effect of Low Temperatures and Moisture on the Strength Performance of Carbon Fiber Reinforced Plastic Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 M. G. Petrov, M. P. Lebedev, O. V. Startsev, M. M. Kopyrin
Abstract The service life of a carbon fiber reinforced plastic used in an aircraft intended for operation under Arctic extreme conditions was studied by longitudinal bend testing in which monotonic loading at various speeds of displacement of the mobile gripper of a testing machine was combined with cyclic loading of specimens with increasing displacement range. The force dependences of the activation
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High-Temperature Thermal Conductivity of Thulium Orthovanadate Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 O. N. Kondrat’eva, G. E. Nikiforova, M. N. Smirnova, A. V. Khoroshilov, K. V. Petrova, V. M. Gurevich
Abstract Thulium orthovanadate-based ceramic materials have been synthesized by solid-phase sintering. Their phase and elemental compositions have been studied. The thermophysical properties of TmVO4 at high temperatures have been studied experimentally. The thermal diffusivity of TmVO4-based ceramics has been measured for the first time by the laser flash method. From these data and heat capacities
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Heat Capacity and Thermodynamic Functions of the Lu2O3 ⋅ 2HfO2 Solid Solution Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 A. V. Guskov, P. G. Gagarin, V. N. Guskov, A. V. Tyurin, K. S. Gavrichev
Abstract The molar heat capacity of the Lu2O3 ⋅ 2HfO2 solid solution has been determined at 4.5–347 K, and its thermodynamic functions have been calculated in the range 0–1300 K.
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Sulfonated Films of Polyphenylquinoxaline. Preparation and Properties Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 M. I. Buzin, E. G. Bulycheva, N. M. Belomoina, G. G. Nikiforova, I. O. Volkov, A. N. Shchegolikhin, S. A. Bedin
Abstract A promising method was proposed for the sulfonation of polyphenylquinoxaline films with sulfuric acid. The sulfonation in the films was confirmed by X-ray photoelectron and IR spectroscopies. The thermal characteristics and dielectric properties of the sulfonated films were studied.
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Effect of Surface Modification of Nanoparticles on the Mechanical Properties of Highly Crosslinked Epoxy Nanocomposites: Mesoscopic Simulation Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 M. D. Malyshev, D. V. Guseva, P. V. Komarov
Abstract A mesoscopic model of a nanocomposite based on crosslinked polymer networks with embedded clay nanoparticles was developed. The model makes it possible to predict the main trends in changes in the mechanical properties of systems, taking into account the degree of crosslinking of nanoparticles with a polymer matrix. The performed simulations showed that modified nanoparticles can significantly
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Condensed Products of Combustion of Boron-Based Solid Propellants Dokl. Phys. Chem. (IF 0.9) Pub Date : 2022-02-10 A. V. Fedorychev, Yu. M. Milekhin, S. A. Rashkovskii
Abstract Condensed combustion products of model propellants based on aluminum boride in the combustion chamber of the gas generator of a ducted rocket engine have been studied. The mass fraction of the condensed combustion products, their chemical composition, and their particle size distribution have been determined. It has been demonstrated that the condensed combustion products mainly contain boron
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Erratum to: Rapid Conversion of Methane to Hydrogen Stimulated by Microwave Irradiation on the Surface of a Carbon Adsorbent Dokl. Phys. Chem. (IF 0.9) Pub Date : 2021-12-01 Chistyakov, A. V., Konstantinov, G. I., Tsodikov, M. V., Maximov, A. L.
An Erratum to this paper has been published: https://doi.org/10.1134/S0012501621390019
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Erratum to: Scalable One-Step Electrochemical Synthesis of a Graphene-Based Material with Controlled Morphology Dokl. Phys. Chem. (IF 0.9) Pub Date : 2021-12-01 Kirianova, A. V., Xieyu, X., Gallyamov, M. O., Kapitanova, O. O.
An Erratum to this paper has been published: https://doi.org/10.1134/S0012501621390020
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Polymerization of Isoprene Using Cationic Catalytic Systems Based on Triethylaluminum Dokl. Phys. Chem. (IF 0.9) Pub Date : 2021-12-01 Rozentsvet, V. A., Sablina, N. A., Ulyanova, D. M., Tolstoy, P. M., Novakov, I. A.
Abstract A new efficient method for the synthesis of soluble thermoplastic polymers of isoprene with softening points in the range from 73 to 160°C has been developed. The method consists in the cationic polymerization of isoprene in dichloromethane or toluene in the presence of catalytic systems based on triethylaluminum in combination with tert-butyl chloride, tert-butyl bromide, 2-chloro-2-methylbutane
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Heat Capacity and Thermal Expansion of M-Terbium Orthotantalate Dokl. Phys. Chem. (IF 0.9) Pub Date : 2021-12-01 Gagarin, P. G., Guskov, A. V., Guskov, V. N., Khoroshilov, A. V., Gavrichev, K. S., Ivanov, V. K.
Abstract The temperature dependences of the molar heat capacity in the range 317–1377 K and the parameters of the monoclinic crystal lattice of M-terbium orthotantalate in the range 298–1273 K have been determined.
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Strain Softening of Polypropylene Films during Biaxial Orientation Dokl. Phys. Chem. (IF 0.9) Pub Date : 2021-12-01 Kechek’yan, A. S., Monakhova, K. Z., Bazhenov, S. L.
Abstract The effect of plane cold drawing on the mechanical characteristics of polypropylene during subsequent tension was studied. After the drawing, the yield stress was observed to decrease by about 30%. The true yield stress is described by a single curve as a function of the total axial elongation during the preliminary plane deformation and the subsequent tension.