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Моделирование влияния термополевой электронной эмиссии из катода с тонкой диэлектрической пленкой на его нагрев в тлеющем разряде
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2022. № 8. С. 25–29.
Pavlenko V. I., Bondarenko G.G., Cherkashina N. I. et al., Inorganic Materials: Applied Research 2026 Vol. 17 No. 2 P. 276–282
A composite material based on polyethylene, boron carbide (B4C), and bismuth oxide (Bi2O3) is
synthesized by the method of joint cryogenic milling of all components in liquid nitrogen environment followed
by pressing. The effect of cryogenic milling on the distribution of fillers in a composite is studied and
the prospects of using this method are assessed in comparison ...
Added: April 9, 2026
Черкашина Н. И., Павленко В. И., Bondarenko G. et al., Перспективные материалы 2026 № 4 С. 14–26
В данной работе представлен синтез гибкого полимерного композита для защиты от радиации на основе каучуковой матрицы и оксидов редкоземельных металлов, таких как Dy2O3 и Gd2O3, предназначенного для создания радиационно-защитных экранов и средств индивидуальной защиты. Исследованы его физико-механические характеристики: составы с добавлением оксида диспрозия имеют плотность от 1,31 до 2,44 г/см3, предел прочности при растяжении от ...
Added: April 2, 2026
Chowde Gowda C., Alexey Kartsev, Tiwari N. et al., Journal of Materials Chemistry C 2024 Vol. 12 No. 46 P. 18691–18703
Two-dimensional (2D) chromium telluride Cr2Te3 exhibits strong ferromagnetic ordering with high coercivity at low temperatures and paramagnetic behavior when approaching room temperature. The spin states of monolayer Cr2Te3 show ferromagnetic ordering in the ground state. In situ Raman analysis reveals a reversible structure transformation and hence proves ferromagnetic to paramagnetic transition during low-temperature heating cycles (0–25 °C). The magnetic ...
Added: March 16, 2026
Argunov E., Alexey I. Kartsev, Computational Materials Science 2024 Vol. 244 Article 113192
Magnetothermopower and giant magnetoresistance in spinel-type compound has attracted a lot of attention recently. Ab initio computations of the electronic structure and the Seebeck coefficient of the structure are reported. The mixed nature of magnetism was identified to be caused by the competition between ferromagnetic and anti-ferromagnetic impacts, with the corresponding determined exchanged parameters: meV, meV, meV. Seebeck coefficient and electrical conductivity of the compound in the temperature range of K along with its ...
Added: March 16, 2026
Xiao Y., Xue W., Xu N. et al., Rare Metals 2025 Vol. 44 No. 11 P. 8757–8768
Complete collection of target fluids and effective capture of biomolecules are essential when designing and fabricating sensor electrodes. Assembling a conductive metal–organic framework (MOF) film onto a high-surface-area porous aerogel to create a three-dimensional (3D) hierarchically ordered structure represented an effective strategy for fabricating sensor electrodes for body fluid detection. In this study, high-precision, confined ...
Added: March 2, 2026
Zhavoronok E. S., Lenkova K. A., Matrenina A. V. et al., Protection of Metals and Physical Chemistry of Surfaces 2025 Vol. 61 No. 5 P. 1231–1238
This study investigated two groups of surgical suture materials—nonabsorbable (polyethylene terephthalate,
polyamide, and silk) and absorbable (glycolic/lactic acid copolymer)—before and after accelerated aging. The analysis employed tensile strength testing, Fourier-transform infrared (FTIR) spectroscopy, and differential scanning calorimetry (DSC). Following domestic and international standards for polymer aging, the samples were subjected to the following initial accelerated aging ...
Added: February 19, 2026
Mehrabi-Kalajahi S., Vasigh S. A., Yousefi Bavili H. et al., Materials Advances 2026 Vol. 7 No. 2 P. 1127–1137
A series of monometallic catalysts, such as Fe3O4, CoO, NiO, and CuO, along with their entropy-stabilized nanoparticles [(Fe,Co,Ni,Cu)3O4 medium-entropy oxide (MEO)], were synthesized and subsequently utilized for the solvent-free and selective aerobic oxidation of benzyl alcohol when supported on graphene oxide (GO). The resulting nanocomposites underwent characterization through various techniques including X-ray diffraction (XRD), scanning electron ...
Added: February 18, 2026
Samoilova O., Pratskova S., Plotnikova P. et al., Materials Letters 2026 Vol. 403 Article 139506
Herein, the positive effect of Pt doping on the high-temperature oxidation of AlCoCrNiPt0.1 multi-principal element alloy (MPEA) is demonstrated. It is shown that platinum is not separated as a secondary phase; rather, it is dissolved in the solid solution phase. The studied alloy exhibited good resistance to high-temperature oxidation during a 100-hour isothermal holding at ...
Added: February 18, 2026
Mehrabi-Kalajahi S., Ostovari Moghaddam A., Vasigh S. A. et al., Industrial & Engineering Chemistry Research 2025 Vol. 64 No. 36 P. 17495–17506
The growing demand for noble metal-free heterogeneous catalysts in selective, solvent-free oxidation reactions faces a persistent challenge: balancing high activity with practical scalability. Addressing this gap, we present a scalable route for the synthesis of the (MnFeCuCoNi)3O4 high-entropy oxide (HEO) catalyst and its composite with reduced graphene oxide (HEO-rGO). Comprehensive characterizations, including X-ray diffraction (XRD), ...
Added: February 18, 2026
Vyacheslav D. Neverov, Karabassov T., Andrey V. Krasavin et al., Research 2026 Vol. 9 Article 1087
Majorana zero modes (MZMs) localized in vortex cores of topological superconductors are widely regarded promising building blocks for fault-tolerant quantum computation. However, their unambiguous detection is hindered by the extremely small energy spacing separating them from conventional Caroli-de Gennes-Matricon states. Using a microscopic Bogoliubov-de Gennes approach, we demonstrate that nonmagnetic impurities, rather than suppressing, can ...
Added: February 17, 2026
S. A. Novikova, Karpov M. S., A. B. Yaroslavtsev, Russian Journal of Electrochemistry 2025 Vol. 61 No. 12 P. 817–843
The state-of-the-art in investigations in the field of cathode materials based on lithium–cobalt double phosphate for lithium-ion rechargeable batteries is surveyed. The specific features of the LiCoPO4 crystal structure, the transfer rate of charge carriers, the main synthetic methods of preparation, and the electrochemical characteristics of LiCoPO4-based cathodes such as discharge capacity, charge–discharge rate, and cyclability ...
Added: February 17, 2026
Manin A., Lysova A. A., Stenina I. et al., Membranes and Membrane Technologies 2025 Vol. 7 No. 4 P. 207–216
Abstract: Anion-exchange membranes based on cardo polybenzimidazole and zinc(II) ions with various molar ratios of metal ions (0, 0.05, 0.25, 0.50, and 1.00) were prepared by casting solutions of metal–polymer complexes. The introduction of zinc(II) ions into the structure of cardo polybenzimidazole is accompanied by the formation of a cross-linked polymer matrix due to the ...
Added: February 17, 2026
Voropaeva D., Trofimenko N. A., S. A. Novikova et al., Membranes and Membrane Technologies 2025 Vol. 7 No. 2 P. 112–124
Modern studies in the field of lithium metal batteries focus on the development of safe and stable electrolytes with high ionic conductivity and electrochemical stability. In this context, promising materials are gel polymer electrolytes based on perfluorosulfonic acid cation-exchange membranes modified with inorganic fillers and solvated with aprotic solvents. This study addresses Nafion® composite membranes ...
Added: February 17, 2026
Li S., Novikova S., Stenina I. et al., Mendeleev Communications 2025 Vol. 35 No. 5 P. 560–562
A sulfur–reduced graphene oxide (rGO) composite was investigated as a cathode material for lithium–sulfur batteries. The cathode material containing both monoclinic (g-S) and orthorhombic (a-S) sulfur and rGO exhibits excellent electrochemical performance. The discharge capacity of (a+g)S@rGO in Li–S battery at C/8 is 950 and 620 mAh g−1 for cycles 1 and 20, respectively. © 2025 ...
Added: February 17, 2026
Yasnitsky L., Голдобин М. А., Мезенцев А. С., Прикладная математика и вопросы управления 2025 № 2 С. 99–116
Представлен обзор современных методов и основанных на них программных
инструментах, применяемых для математического моделирования серийных производственных процессов с целью снижения брака и повышения качества производимых изделий. Перечисляются группы работ, нацеленных на обнаружение и классификацию дефектов, работ, в которых решаются задачи прогнозирования образования дефектов и определения значимости параметров, работ направленных на поиск
оптимального сочетания технологических параметров изготовления изделий, ...
Added: February 15, 2026
Ekaterina G. Odintsova, Darya L. Gurina, Yury A. Budkov, Colloids and Surfaces A: Physicochemical and Engineering Aspects 2026 Vol. 736 Article 139693
The behavior of water under nanoscale confinement is crucial for numerous technologies; yet predicting its
properties remains challenging due to the complex interplay of pore geometry and surface chemistry. While the
influence of general hydrophilicity is recognized, the specific role of the flexibility of surface functional groups - a
key molecular-scale feature - has remained underexplored. To address ...
Added: January 24, 2026
Grigoriev P., Pavlov N., Nekrasov I. et al., Communications Materials, A Nature Portfolio journal (United Kingdom) ISSN 26624443 2025 Vol. 6 No. 1 Article 252
Layered van der Waals crystals of topologically non-trivial and trivial semimetals with antiferromagnetic (AFM) ordering of magnetic sublattice are known to exhibit a negative magnetoresistance that is well correlated with AFM magnetization changes in a magnetic field. This effect is reported in several experimental studies with EuFe2As2, EuSn2As2, EuSn2P2, etc., where the resistance decreases quadratically with field by about ...
Added: January 24, 2026
Bondarenko G., Fisher M. R., Kristya V. I., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2025 Vol. 19 No. 1 P. 66–72
A model of a cathode layer in a gas glow discharge is formulated taking into account the presence
of a dielectric film with varying thickness on the cathode across different areas of its surface, and in some
areas, the film may be absent. The model includes ion–electron emission from the cathode surface, thermalfield
electron emission from the cathode ...
Added: June 11, 2025
Li L., Li Z., Meng J. et al., Chemical Communications 2025 Vol. 61 No. 45 P. 8252–8255
Sodium-ion batteries (SIBs) have emerged as a promising alternative to lithium-ion batteries due to the abundance and cost-effectiveness of sodium resources. However, their widespread application is hindered by challenges such as sluggish ion diffusion kinetics and structural instability of cathode materials during prolonged cycling. The design of advanced cathode architectures with enhanced ion transport and ...
Added: May 8, 2025
Bondarenko G., Фишер М. Р., Кристя В. И., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2025 № 1 С. 78–85
Представлена модель катодного слоя тлеющего газового разряда при наличии на катоде
диэлектрической пленки, толщина которой различна на разных участках его поверхности, причем
на части поверхности она может отсутствовать. Модель учитывает ионно-электронную эмиссию
с поверхности катода, термополевую электронную эмиссию из подложки катода в пленку
и термическую электронную эмиссию с участков катода без пленки. Показано, что при нагреве
катода эмиссионная эффективность пленки, ...
Added: May 6, 2025
Г. Г. Бондаренко, Фишер М. Р., Кристя В. И., Известия РАН. Серия физическая 2024 Т. 88 № 4 С. 549–554
Предложена модель катодного слоя тлеющего газового разряда при наличии на катоде диэлектрической оксидной пленки, толщина которой имеет различные значения на разных участках
его поверхности. Изучено влияние неравномерности толщины пленки на эффективный коэффициент электронной эмиссии катода и на характеристики разряда. ...
Added: December 13, 2024
Bondarenko G., Кристя В. И., Савичкин Д. О. et al., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2024 № 3 С. 81–87
Предложена модель слаботочного газового разряда в смеси аргона и паров ртути при наличии
на поверхности катода тонкой диэлектрической пленки. Модель учитывает, что в такой смеси
существенный вклад в ионизацию рабочего газа может давать ионизация атомов ртути при их
столкновениях с метастабильными возбужденными атомами аргона. В разряде на поверхности
пленки накапливаются положительные заряды, создающие в диэлектрике электрическое поле,
достаточное для возникновения ...
Added: June 12, 2024
G. G. Bondarenko, Kristya V. I., Savichkin D. O. et al., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2024 Vol. 18 No. 2 P. 327–332
We propose a model for a low-current gas discharge in a mixture of argon and mercury vapor in the
presence of a thin dielectric film on the surface of a cathode. The model takes into account that in such a mixture,
a significant contribution to ionization of the working gas can be made by the ionization of ...
Added: April 25, 2024
G. G. Bondarenko, Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2024 Vol. 88 No. 4 P. 464–468
A model is proposed for describing a cathode layer of a glow gas discharge in the presence on a
cathode of a dielectric oxide film, the thickness of which has different values on different sections of its surface.
The influence is studied of the non-uniformity of the film thickness on the effective coefficient of the
ion-electron emission as ...
Added: April 15, 2024