Химические науки список научных статей
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EFFECT OF COTTON FIBER AND LINT SEPARATION PROCESS ON PRODUCT QUALITY
The article is about the effect of ginning on the quality of the product after the technological process of cotton ginning.
2024 / Jurayeva Hilola Shavkat Qizi, Mamarasulov Eliboy Qaxramon O‘g‘li
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Электролюминесценция новых координационных соединений ионов европия с β-дикетонами, уксусной и масляной кислотами
Представлены результаты создания и исследования органических светоизлучающих светодиодов на основе координационных соединений ионами европия (Eu3+) c β-дикетонами и уксусной и масляной кислотами. Актуальность работы обусловлена активным поиском новых материалов для создания оптоэлектронных...
2024 / Анна Владимировна Осадченко, Сергей Александрович Амброзевич, Иван Александрович Захарчук, Андрей Александрович Ващенко, Даниил Саюзович Дайбаге, Александр Вячеславович Рыжов, Дмитрий Николаевич Певцов, Николай Валерьевич Певцов, Александр Сергеевич СелюковВАК -
Solution processed Ag–In–S nanoparticles as light adsorber in ZnO for photovoltaic application
Nano-sized indium incorporated silver sulphide (Ag–In–S) nanocomposites were synthesized by simple wet chemical method as an electron transport layer in zinc oxide (ZnO) for high efficient photovoltaic (PV) cell. The inclusion of high conductivity indium ions in Ag2S will improve the facile...
2023 / K. Abinaya, P. Sharvanti, N. Rajeswari YogamalarВАКESCI -
Optimization of certain synthesis parameters for CdSe quantum dots and synthesis of CdSe–ZnSe nano-tetrapods through facile hot injection method
This paper reports a modified version of hot injection method for the synthesis of CdSe quantum dots and CdSe–ZnSe nano–tetrapod structures. In the present method, certain synthesis parameters such as injection temperature, growth temperature and precursor ratio were tuned to influence the growth...
2023 / Boni Samuel, K.J. Adarsh, V.P.N. Nampoori, A. MujeebВАКESCI -
The role and effect of CO2 flow rate on the structure formation of ultrahigh porous activated carbon from H3PO4-impregnated waste cotton used as supercapacitor electrode material
Ultrahigh porosity activated carbon (AC) was made from H3PO4-impregnated waste cotton precursor by carbonization in Ar and physical activation in variable CO2 flow rate with ultrahigh heating rate. The presence of CO2 in the activation plays an important role in the formation of the porous...
2023 / Nguyen K. Thach, Ilya S. Krechetov, Valentin V. Berestov, O.I. Kan, Ivan A. Maslochenko, Tatyana L. Lepkova, Svetlana V. StakhanovaВАКESCI -
SILD synthesis of porous manganese oxide nanocoatings as electroactive materials for pseudocapacitors
In present work the porous nanocoating of manganese oxide were obtained via successive ionic layer deposition from aqueous solutions of potassium permanganate and DMSO. The morphology, phase and chemical composition of the synthesized nanocoatings were characterized by XRD, SEM, EDX and Raman...
2023 / Artem A. Lobinsky, Maria V. Kaneva, Anastasia K. Bachina, Maxim I. TenevichВАКESCI -
Planar perovskite solar cells with La2NiMnO6 buffer layer
Thin films of La2NiMnO6 (LNMO) double perovskite oxide were first used as buffer layers in planar perovskite solar cells (PSCs) with the architecture of glass/FTO/LNMO/CH3NH3PbI3/Spiro-MeOTAD/Au. All PSCs were fabricated under ambient conditions and their photovoltaic parameters were measured under ...
2023 / Sergey S. Kozlov, Anna B. Nikolskaia, Olga K. Karyagina, Ekaterina K. Kosareva, Olga V. Alexeeva, Vasilisa I. Petrova, Oksana V. Almjasheva, Oleg I. ShevaleevskiyВАКESCI -
Growth of nanotextured thin films of GaInAsP and GaInAsSbBi solid solutions on GaP substrates by pulsed laser deposition
GaInAsP and GaInAsSbBi solid solutions were grown on GaP (111) substrates by pulsed laser deposition using a laser fluence of 2.3 J/cm². Energy Dispersive X-ray microanalysis, atomic force microscopy, and Raman spectroscopy were used for analysis of the elemental composition and study of the...
2023 / Alexander S. Pashchenko, Oleg V. Devitsky, Leonid S. Lunin, Marina L. Lunina, Olga S. Pashchenko, Eleonora M. DanilinaВАКESCI -
Synthesis under hydrothermal conditions and structural transformations of nanocrystals in the LaPO4–YPO4–(H2O) system
Structural transformations of nanocrystals in the LaPO4–YPO4–(H2O) oxide system were investigated under hydrothermal conditions at 230 ˚C, depending on isothermal holding times (2 hours, 7 days and 28 days). It was shown that before hydrothermal processing, phases crystallize in the system with...
2023 / Maria O. Enikeeva, Olga V. Proskurina, Evgeny Yu. Gerasimov, Vladimir N. Nevedomskiy, Victor V. GusarovВАКESCI -
Formation of the metal-oxide nanocomposites during the partial reduction of Nd-Sr nickelates
A thermal reduction of Nd2−xSrxNiO4−δ (x = 0–1.4) solid solutions in an Ar/H2 gas mixture occurs in several separate stages. The initial stages of reduction presumably related to the reduction of Ni3+ to Ni2+ cause only minor changes in the initial K2NiF4 type structure and retain the morphology of ...
2023 / Sergey A. Malyshev, Oleg A. Shlyakhtin, Grigorii M. Timofeev, Galina N. Mazo, Ilya V. Roslyakov, Aleksander V. Vasiliev, Tatiana B. Shatalova, Aleksander L. KustovВАКESCI -
Alumina and silica supported Ce–Fe–O systems obtained by the solution combustion method and their performance in CO2 hydrogenation to syngas
This study presents Ce–Fe–O systems supported on γ-Al2O3 or SiO2 to enhance the reactivity of an oxygen-deficient CeFeO3 perovskite phase, which are promising catalysts for the production of fuels and chemicals from CO2 as feedstock. The synthesis was carried out by the glycine-nitrate solution...
2023 / Anna N. Matveyeva, Shamil O. Omarov, Marianna A. GavrilovaВАКESCI -
Optical glass-ceramics based on Fe2+: MgAl2O4 nanocrystals and nucleated by TiO2 and ZrO2
Transparent glass-ceramics of magnesium aluminosilicate system based on Fe2+:MgAl2O4 spinel nanocrystals nucleated by a mixture of TiO2 and ZrO2 and doped with 0.6 mol% FeO were developed. The glass was melted at 1580 ºC with stirring and heat-treated in the temperature range from 800 to 1300 ºC....
2023 / Vasilisa S. Bukina, Olga S. Dymshits, Irina P. Alekseeva, Anna A. Volokitina, Svetlana S. Zapalova, Aleksandr A. ZhilinВАКESCI -
Surface topology, electrophysical properties and formation mechanism of tin(ii) sulfide thin films
Photosensitive nanocrystalline SnS films with a size of coherent X-ray scattering regions of about 30 nm were obtained by chemical bath deposition. It has been demonstrated that the deposition time affects significantly both microstructure and thickness of the film as well as the size of the...
2023 / N.S. Kozhevnikova, L.N. Maskaeva, A.N. Enyashin, A.P. Tyutyunnik, O.A. Lipina, I.O. Selyanin, V.F. MarkovВАКESCI -
Planetary grinding’s impact on the structure and photocatalytic characteristics of urea-derived g-C3N4 nanocrystals
The burgeoning interest in two-dimensional materials derived from graphite carbon nitride (g-C3N4) stems from its non-toxicity, exceptional charge carrier mobility, and UV-vis absorption capabilities. Crucially, g-C3N4’s performance hinges on its specific surface area. We investigate how planetary...
2023 / Maria I. Chebanenko, Lev A. Lebedev, Maksim I. Tenevich, Ekaterina Yu. Stovpiaga, Vadim I. PopkovВАКESCI -
Effect of triethanolamine and sodium hydroxide concentration on the activity of Pt/gC3N4 catalyst in the reaction of photocatalytic hydrogen evolution under visible light irradiation
In this work, the dependences of the rate of photocatalytic hydrogen evolution under visible light irradiation on the concentration of triethanolamine and sodium hydroxide for 0.1 wt.% Pt/g-C3N4 photocatalyst were studied. The kinetic dependences of the reaction rate versus substrate initial...
2023 / Ksenia O. Potapenko, Ekaterina A. KozlovaВАКESCI -
Equilibrium of intrinsic and impurity point defects in Ca-doped Sm2Zr2O7
In this work, a doping strategy was used to achieve a good conductivity in samarium zirconate which crystallizes in the pyrochlore. The production of nanopowders made it possible to form high-density ceramics with an optimal microstructure. It is shown that intrinsic and impurity defects coexist in ...
2024 / Vladimir A. Vorotnikov, Semyon A. Belyakov, Alexey V. Ivanov, Yulia V. Novikova, Anna Yu. Stroeva, Vadim V. Grebenev, Dmitry N. Khmelenin, Olga V. Emelyanova, Maksim S. Plekhanov, Anton V. KuzminВАКESCI -
The effect of Ag(0) colloidal crystals and nanoribbons formation as a result of the redox reaction between Ce(III) and Ag(I) cations occurring on the surface of an aqueous solution of their salts mixture
The proposed study shows for the first time that gaseous ammonia treatment of AgNO3 and Ce(NO3)3 salts mixture aqueous solution surface gives rise to formation of a composite layer consisting of Ag(0) faceted colloidal crystals and nanoribbons, as well as CeO2 nanocrystals. A study of such a...
2024 / Valeri P. Tolstoy, Evelina E. Shilovskikh, Larisa B. GulinaВАКESCI -
Fluorination of Eu-doped layered yttrium hydroxides: the role of anionic composition
The fluorination processes of layered rare-earth hydroxides (LRHs) intercalated with various anions, including organic ones, have been compared for the first time. The fluorination process was investigated for chloride-, nitrateand 4-sulfobenzoate-intercalated Eu-doped layered yttrium hydroxides by ...
2024 / Zhanbo Liu, Svetlana V. Golodukhina, Svetlana V. Kameneva, Alexey D. YapryntsevВАКESCI -
Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows
The technique of micromixing was used for synthesis of SrF2 nanopowders in a microreactor with intensely swirling flows. The chemical reaction between aqueous solutions of strontium nitrate (C(Sr(NO3)2) = 0.15 – 0.45 M) and potassium fluoride (C(KF) = 0.3 – 0.9 M) was realized in a microreactor...
2024 / Rufat Sh. Abiev, Andrey V. Zdravkov, Yuliya S. Kudryashova, Alexander A. Alexandrov, Sergey V. Kuznetsov, Pavel P. FedorovВАКESCI -
Sorption of polar and non-polar liquids by GO powders according to DSC experiments
The sorption properties of Hummers (HGO) and Brodie (BGO) graphite oxides with respect to various liquids were studied by the DSC method. In the case of HGO, the reduced material (RHGO) was obtained by hydrothermal synthesis. The effective reduction of the material was confirmed by XRD. The...
2024 / Alexander V. Kaplin, Elena A. Eremina, Mikhail V. KorobovВАКESCI
