Russian Journal of Inorganic Chemistry最新文献

{"title":"Development of a New Combined Approach to the Synthesis of a Cathode Material Based on the Li2CoMn3O8 Solid Solution","authors":"R. I. Korneykov,&nbsp;V. V. Efremov,&nbsp;S. V. Aksenova,&nbsp;K. A. Kesarev,&nbsp;O. I. Akhmetov,&nbsp;O. B. Shcherbina,&nbsp;I. R. Elizarova,&nbsp;I. G. Tananaev,&nbsp;O. O. Shichalin","doi":"10.1134/S0036023625600236","DOIUrl":"10.1134/S0036023625600236","url":null,"abstract":"<p>Cathode materials based on Li₂CoMn₃O₈ solid solutions have been synthesized by a combined method and their characteristics have been studied. It has been found that Li₂CoMn₃O₈ has high electrochemical properties, which makes it a promising cathode material for lithium-ion batteries, an alternative to LiCoO₂. Using X-ray diffraction analysis and spectrometry, the resulting phases have been identified, and their chemical composition has been determined. The structure and morphology have been studied by electron microscopy and Brunauer–Emmett–Teller methods. A technological scheme for fabricating Li₂CoMn₃O₈ has been proposed, which ensures the formation of nanosized samples with a high specific surface area and improved electrochemical characteristics. The electrochemical properties of the synthesized samples are discussed.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"337 - 346"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Characterization of Mixed Bimetallic Layered (Cr,V)C Carbide","authors":"E. K. Papynov,&nbsp;A. V. Ognev,&nbsp;M. S. Gurin,&nbsp;N. P. Ivanov,&nbsp;O. O. Shichalin,&nbsp;A. O. Lembikov,&nbsp;M. I. Sobirov,&nbsp;K. A. Rogachev,&nbsp;A. Yu. Samardak,&nbsp;A. S. Samardak","doi":"10.1134/S0036023625600273","DOIUrl":"10.1134/S0036023625600273","url":null,"abstract":"<p>This paper presents the synthesis of layered complex carbide of the composition (Cr,V)C using reactive spark plasma sintering (SPS-RS) and hydrothermal acid etching. Using SEM and TEM, the macrostructure and nanostructure at each stage of MAXene synthesis was studied in detail. The presence of characteristic features of the formation of two-dimensional carbide in the form of particles and fragments of a multilayer structure at the macro- and nanolevel was confirmed. Using EDS and powder X-ray diffraction, the elemental and phase composition of the samples was studied. As a result, it was found that the expected MAX-phase Cr₂VAlC₂ in the composition of the sample obtained by SPS is absent. At the same time, a phase of mixed bimetallic carbide (Cr,V)C was detected at all stages of synthesis, for which the crystal lattice parameters, including the unit cell volume, change significantly after acid etching. Obvious changes in the bulk and crystalline structure of (Cr,V)C correspond to the formation of two-dimensional nanoparticles in the synthesized material. The magnetic characteristics study showed that all samples have magnetic hysteresis with relatively low values of coercivity and remanence to saturation magnetization ratio. Low-temperature measurements showed a slight increase in magnetic moment with decreasing temperature for the sample obtained under reaction SPS conditions before acid etching in HF, without significant changes in magnetic behavior of the samples.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"364 - 373"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Investigation of Composite Sorbents Based on Mixed K–Co and K–Cu Ferrocyanides for Cesium Extraction From Aqueous Media","authors":"A. N. Drankov,&nbsp;V. A. Balybina,&nbsp;A. M. Zarubo,&nbsp;V. V. Milutin,&nbsp;A. O. Lembikov,&nbsp;S. M. Pisarev,&nbsp;E. A. Ponomareva,&nbsp;N. Y. Savelyeva,&nbsp;N. G. Kokorina","doi":"10.1134/S0036023625600248","DOIUrl":"10.1134/S0036023625600248","url":null,"abstract":"<p>A new method for the fabrication of composite sorbents based on mixed K–Co and K–Cu ferrocyanides using polyethylene was proposed. The unique feature of this method is that hydrophobization of the material is attained by integration of polyethylene fibers into the ferrocyanide structure. The surface morphology and structure of the sorbents were investigated by scanning electron microscopy, powder X-ray diffraction, and low-temperature nitrogen adsorption. Characteristic features of extraction of micro- and macro-concentrations of Cs⁺ cations and ¹³⁷Cs radionuclide from sea water under static conditions were studied. The experimental sorption data were approximated using the Langmuir and Freundlich equations, and the maximum sorption <i>G</i>_max and adsorption equilibrium constants were calculated. The sorbents synthesized with the addition of polyethylene showed the best sorption performance (the removal efficiency of cesium ions from seawater reaches 99%). The average distribution coefficient of cesium in seawater is 3.8 × 10⁴ mL/g for a solid-to-liquid phase ratio of 1000 mL/g. This attests to good prospects of application of these sorbents for removal of radioactive cesium from seawater.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"413 - 421"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co–Fe, Ni–Fe, and Zn–Ti Layered Double Hydroxides for Sorptive Extraction of U(VI) From Aqueous Solutions of Medium Salinity","authors":"A. N. Drankov,&nbsp;V. A. Balybina,&nbsp;A. O. Lembikov,&nbsp;E. S. Kulikova,&nbsp;N. Y. Savelyeva,&nbsp;S. M. Pisarev,&nbsp;E. A. Ponomareva,&nbsp;N. G. Kokorina,&nbsp;E. K. Papynov","doi":"10.1134/S0036023625600261","DOIUrl":"10.1134/S0036023625600261","url":null,"abstract":"<p>The paper describes the synthesis of sorbents based on Co–Fe, Ni–Fe, and Zn–Ti layered double hydroxides (LDHs) obtained by the most reproducible and environmentally benign homogeneous co-precipitation method. This method provide dispersed materials with a particle size of not more than 10 μm and crystallite size of up to 10 nm for Co–Fe and Ni–Fe LDHs. This combination of transition metals gives rise to compounds possessing mechanical and chemical stability in harsh media and actively participating in redox reactions in the liquid phase. The physicochemical and sorption properties of the obtained materials were studied, regarding the removal of uranyl ions U(VI) from aqueous solutions, including salt solutions such as Na₂CO₃, Na₂SO₄, KNO₃, NaCl, K₃PO₄, and NaHCO₃ containing competing ions. The removal efficiency of uranyl ions from the salt solutions reached 99% and the partition ratios <i>K</i>_<i>d</i> were up to 10⁵ mL/g, indicating high selectivity to the extracted component. The Co–Fe LDH demonstrated the highest maximum sorption (<i>G</i>_max) of 101.6 mg/g in seawater and 114.1 mg/g in distilled water. The plots for the residual content of uranyl ions after the sorption as a function of the total volume of the starting solution that passed through the column are presented; the curves reach a plateau for Co–Fe and Fe–Ni LDH samples, which is caused by the saturation of the material with the extracted component. The total dynamic sorption capacity of the LDH-based sorption materials reaches 101.4 mg/g for Co–Fe LDH sample and only 40.2 mg/g Zn–Ti LDH. According to the results, the obtained materials based on Co–Fe, Ni–Fe, and Zn–Ti layered double hydroxides have a considerable potential for the sorptive extraction of uranyl U(VI) ions from aqueous solutions of medium salinity.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"422 - 431"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calcium Silicate-Based Material as Filler for Paint Coatings","authors":"S. B. Yarusova,&nbsp;U. V. Kharchenko,&nbsp;P. S. Gordienko,&nbsp;S. N. Danilova,&nbsp;D. A. Nguyen,&nbsp;I. A. Beleneva,&nbsp;D. Kh. Shlyk","doi":"10.1134/S0036023625600200","DOIUrl":"10.1134/S0036023625600200","url":null,"abstract":"<p>Paint coatings with optimal performances are an important element in the safety and efficiency of marine and river vessels, as well as other facilities exploited in the aquatic environment. In this work, we used a calcium hydrosilicate (CS)–based material derived by a hydrothermal process from technogenic waste (borogypsum) to modify paint coatings. The product with the specific surface area 155.2 m²/g and the density 3.1 g/cm³ comprised calcium sulfate, tobermorite, and xonotlite phases and consists mainly of acicular particles. The influence of calcium hydrosilicate, partially replacing calcium carbonate, on the properties of acrylic copolymer–based paint coatings was studied. The physical and mechanical properties, antifouling effect, water uptake, and erosion rate of paint coatings were studied. The results of these studies show the efficiency of calcium silicate to improve the physical and mechanical properties of coatings; a 1.5-fold increase in strength occurred. In addition, calcium hydrosilicate added to partially replace calcium carbonate did not deteriorate the antifouling effect.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"455 - 461"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Granulated Hydrophobic Magnetic Sorbents and Composite Sponges Based on Fe3O4/Zn-Al-LDH for Oil Pollution Removal","authors":"N. P. Ivanov,&nbsp;O. O. Shichalin,&nbsp;V. L. Rastorguev,&nbsp;V. M. Zakharenko,&nbsp;A. V. Myagchilov,&nbsp;P. A. Marmaza,&nbsp;Ya. G. Zernov,&nbsp;S. M. Pisarev,&nbsp;I. Yu. Buravlev,&nbsp;E. K. Papynov","doi":"10.1134/S0036023625600340","DOIUrl":"10.1134/S0036023625600340","url":null,"abstract":"<p>A method has been developed for modifying the surface of magnetic composite materials on layered double hydroxides (LDH) Fe₃O₄/Zn-Al-LDH to enhance their hydrophobic properties. The mechanisms of interaction of sodium stearate, oleate, and dodecyl sulfate with the Fe₃O₄/Zn-Al-LDH surface have been studied. The effect of hydrophobization in an ethanol medium on the porous and crystalline structures of the initial material has been studied. Routes to synthesize magnetic granular and sponge sorbents using melanin-formaldehyde resin as a matrix are reported. Samples of granular and sponge sorption materials Fe₃O₄/LDH-ST and MEL-Fe₃O₄/LDH-ST fabricated under optimal conditions have a high oil sorption capacity (0.60 and 21.36 g/g, respectively), significant magnetic susceptibility, enhanced hydrophobicity, and the possibility of regeneration. The synthesized materials are promising for marine oil spill remediation and for environmental monitoring.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"440 - 447"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lithium-Ion Battery Recycling Product in the Preparation of the Manganese-Based MAX-Phase","authors":"O. O. Shichalin,&nbsp;Z. E. Kornakova,&nbsp;N. P. Ivanov,&nbsp;A. I. Seroshtan,&nbsp;P. A. Marmaza,&nbsp;K. V. Barkhudarov,&nbsp;D. K. Tsygankov,&nbsp;E. A. Shramkov,&nbsp;I. A. Likhachev,&nbsp;E. K. Papynov","doi":"10.1134/S0036023625600212","DOIUrl":"10.1134/S0036023625600212","url":null,"abstract":"<p>In recent years, there has been a significant increase in demand for lithium-ion batteries (LIBs) in response to the growing popularity of electric vehicles and other battery-powered devices. These batteries have become the main power source for most portable devices and electric vehicles. One such vehicle is the Nissan Leaf. However, the increasing LIB production and consumption raise the question of the efficient production and environmentally safe recycling of spent LIBs. The recycling of spent LIBs comprises the recovery of their valuable components such as lithium, cobalt, nickel, and manganese. The efficient recycling of cathode materials becomes particularly important as it both provides the reuse of these metals in new battery production and reduces the need for resource mining. Manganese (Mn), which can be recovered during LIB recycling, plays a crucial role in battery production and can also serve as a basis for preparing new materials, such as the Mn₃AlC MAX phase. Manganese MAX phases constitute a class of two-dimensional materials whose unique properties attract increasing attention from researchers. Thus, LIB recycling not only solves the waste disposal problem but also creates opportunities for new materials design.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"382 - 389"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemistry and Chemical Education: Modern Issues, Trends, and Development Prospects","authors":"E. K. Papynov,&nbsp;S. B. Yarusova,&nbsp;A. A. Belov,&nbsp;V. I. Sergienko","doi":"10.1134/S0036023625600352","DOIUrl":"10.1134/S0036023625600352","url":null,"abstract":"<p>The results of the IX International Symposium “Chemistry and Chemical Education,” dedicated to the 190th anniversary of D.I. Mendeleev, and the Third Youth School on Radioecology, honoring the distinguished Far Eastern scientist V.A. Avramenko, are summarized. Both events took place at the Far Eastern Federal University from September 30 to October 3, 2024. The symposium addressed current challenges, trends, and prospects in chemistry and chemical education. Notably, for the first time in the Far East, a special section on “Synchrotron and Neutron Studies of Materials” was organized in collaboration with researchers from the National Research Centre “Kurchatov Institute,” presenting the results of joint studies.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"319 - 323"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasma Electrolytic Synthesis and Characterization of Bismuth-Containing Oxide Films on Titanium","authors":"D. P. Popov,&nbsp;M. S. Vasilyeva,&nbsp;V. G. Kuryavyi,&nbsp;V. V. Korochentsev,&nbsp;V. S. Egorkin","doi":"10.1134/S0036023625600157","DOIUrl":"10.1134/S0036023625600157","url":null,"abstract":"<p>Bismuth-containing films on titanium were formed by single-stage plasma electrolytic oxidation (PEO) in the pulsed mode in an electrolyte with dispersed particles containing metallic bismuth. The surface morphology and composition of the prepared films were studied by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS). The bismuth modification of Ti/TiO₂ films leads to the appearance of anodic photocurrents in the visible region of the spectrum, a shift in flat-band potentials to the cathodic region, and an increase in concentration of charge carriers. The pulse duration τ (0.02 or 0.05 s) noticeably affects the characteristics and properties of the prepared film composites. At τ = 0.02 s, agglomerates of particles 0.2 to 1 μm in diameter with an increased bismuth content are formed on the oxide film surface. Such film composites have a narrow bandgap of 1.62 eV and exhibit the highest photoelectrochemical activity under the visible light.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"405 - 412"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanochemical Synthesis of Polyaluminodiphenylsiloxanes","authors":"A. A. Kapustina,&nbsp;V. V. Libanov,&nbsp;D. A. Fomen","doi":"10.1134/S0036023625600182","DOIUrl":"10.1134/S0036023625600182","url":null,"abstract":"<p>The aim of this work is to study possibility of mechanochemical synthesis of polyaluminodiphenylsiloxanes. Dihenylsilanediol and aluminum tributoxide have been used for the first time for the synthesis under mechanical activation conditions. It has been found that the reaction results in aluminodiphenylsiloxanes with Si/Al ratio close to the prescribed value, while increase in activation time leads to the growth of rate of homocondensation process of initial dihenylsilanediol and, therefore, to increase in Si/Al ratio. It has been found by IR and NMR spectroscopy that aluminum atom forms with silanediol a polymeric aluminosiloxane chain with retention of butoxy groups. The obtained compounds have been shown to display considerably lower thermal stability than spatially branched metalloorganosiloxanes. The compounds prepared in the work have been characterized by the contemporary methods of analysis.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 and Development Prospects","pages":"347 - 354"},"PeriodicalIF":1.5,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}