Russian Journal of Inorganic Chemistry最新文献_第9页

Hybrid Material in the Cerium(III) Nitrate–Chitosan–Urea System 硝酸铈-壳聚糖-尿素体系中的杂化材料

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023626600528

L. A. Zemskova, D. Kh. Shlyk, N. A. Didenko, V. E. Silant’ev

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Extraction Pyrolytic Synthesis and Luminescent Properties of Double Tungstates La2W2O9 Doped with Europium and Terbium 掺铕、铽双钨酸盐La2W2O9的萃取、热解、合成及发光性能

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S003602362560265X

N. I. Steblevskay, M. V. Belobeletskay, M. A. Medkov

{"title":"Extraction Pyrolytic Synthesis and Luminescent Properties of Double Tungstates La2W2O9 Doped with Europium and Terbium","authors":"N. I. Steblevskay, M. V. Belobeletskay, M. A. Medkov","doi":"10.1134/S003602362560265X","DOIUrl":"10.1134/S003602362560265X","url":null,"abstract":"Inorganic materials based on lanthanum tungstates doped with optically active lanthanide ions exhibit intense and broad emission spectra. In view of the influence of synthesis methods on the morphology, particle size, exact optimal concentration ratio of doping ions, and, hence, luminescence characteristics of the dopants, the search for efficient methods of synthesis is in progress. This study demonstrates the possibility of obtaining double lanthanum tungstates α-La2W2O9, α-La2–xEuxW2O9, α-La2–xTbxW2O9, and La1.95–xEu0.05TbxW2O9 (х = 0.0075, 0.01, 0.02, 0.03, 0.04, 0.05, 0.075, 0.10) under milder conditions of extraction-pyrolytic synthesis. The structure of the triclinic α-La2W2O9 phase does not change on doping with Eu3+ and Tb3+ ions. Compounds La1.95–xEu0.05TbxW2O9 exhibit luminescence in the 450 to 725 nm range (λeх = 308 nm) comprising 5D4–7Fj (j = 1–6) transition bands for Tb3+ and 5D0–7Fj (j = 0–4) transition bands for Eu3+. The spectral patterns indicate the invariability of the Eu3+ local environment in the tungstates La2–xEuxW2O9 and La1.95–xEu0.05TbxW2O9.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 4","pages":"455 - 465"},"PeriodicalIF":1.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154253","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}

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Synthesis and Electron Paramagnetic Resonance of Europium(III, II) Metaphosphate 偏磷酸铕（III， II）的合成及电子顺磁共振研究

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023626600474

N. I. Steblevskaya, N. S. Saenko, M. V. Belobeletskaya, A. M. Ziatdinov, M. A. Medkov

{"title":"Synthesis and Electron Paramagnetic Resonance of Europium(III, II) Metaphosphate","authors":"N. I. Steblevskaya, N. S. Saenko, M. V. Belobeletskaya, A. M. Ziatdinov, M. A. Medkov","doi":"10.1134/S0036023626600474","DOIUrl":"10.1134/S0036023626600474","url":null,"abstract":"A nanodispersed composite with two luminescence centers including Eu(PO3)3 and Eu(PO3)2 phases and designated as Eu(PO3)3:Eu2+ was synthesized by extraction-pyrolytic method at optimally low temperature and time of pyrolysis of organic precursors. The composite was studied by electron paramagnetic resonance (EPR) at various temperatures. The EPR spectrum of nanodispersed Eu(PO3)3:Eu2+ powder contains three components that differ in the peak-to-peak linewidth and intensity and effective spectroscopic splitting factors. The broad component of the spectrum is the envelope of the set of unresolved hyperfine structure components of single Eu2+ centers averaged over all orientations of the powder particles. The two narrower symmetric and asymmetric components of the spectrum may belong to Eu2+ in clusters with strong dipole–dipole interaction that average the fine and hyperfine structures and to defects in the metaphosphate structure, respectively.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 4","pages":"449 - 454"},"PeriodicalIF":1.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154251","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}

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Photocatalysts Based on Titanium Dioxide and Carbon Nitrides for Efficient Decomposition of Organic Dyes 基于二氧化钛和氮化碳的高效分解有机染料光催化剂

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023625604556

O. V. Alekseeva, V. D. Shibaeva, A. V. Noskov, A. V. Agafonov

{"title":"Photocatalysts Based on Titanium Dioxide and Carbon Nitrides for Efficient Decomposition of Organic Dyes","authors":"O. V. Alekseeva, V. D. Shibaeva, A. V. Noskov, A. V. Agafonov","doi":"10.1134/S0036023625604556","DOIUrl":"10.1134/S0036023625604556","url":null,"abstract":"TiO2/γ-C3N4 and TiO2/β-C3N4 photoactive nanomaterials were synthesized using the polyol method by introducing γ- and β-polymorphs of carbon nitride with graphite-like and diamond-like structures into the reaction medium. A polymorph obtained by the low-temperature plasmochemical method was used for the first time to obtain a composite with β-C3N4. The morphology, crystal structure and porosity of the obtained composites were studied. The photocatalytic activity of the materials in the visible and UV ranges was investigated in the decomposition reactions of organic dyes (rhodamine B, methylene blue, reactive red 6C). It was shown that the photocatalytic activity of the obtained materials strongly depends on the polymorphic modification of carbon nitride: the g-form has advantages both under irradiation with visible light and under exposure to ultraviolet light. In addition, the efficiency of the synthesized TiO2/γ-C3N4 remains virtually unchanged over six consecutive test cycles.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 4","pages":"466 - 474"},"PeriodicalIF":1.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154254","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}

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Comparative Analysis of the Properties of CsPbI3 Perovskite Quantum Dots Synthesized by the Hot-Injection and Halide-Exchange Methods 热注入法和卤化物交换法合成CsPbI3钙钛矿量子点性能的比较分析

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023625604209

I. V. Mukhina, S. A. Novikova, E. D. Gribova

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Heat Capacity and Thermodynamic Functions of the Y2O3·2HfO2 Solid Solution Y2O3·2HfO2固溶体的热容和热力学函数

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023626600553

A. V. Gus’kov, P. G. Gagarin, V. N. Gus’kov, G. I. Betenev, K. S. Gavrichev

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Synthesis and Thermodynamic Characteristics of Bismuth Cobaltate Doped with Ytterbium 掺镱钴酸铋的合成及其热力学特性

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023626600437

N. I. Matskevich, A. N. Semerikova, A. I. Aparnev, M. Yu. Rozhina

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On Transformations of Cerium Dioxide under Hydrothermal Conditions in the Presence of Fluoride and Citrate Ions 水热条件下氟离子和柠檬酸盐存在下二氧化铈的转化研究

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023625604532

A. D. Filippova, A. E. Baranchikov, V. K. Ivanov

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Wet Method of Hardystonite Synthesis 硬石岩的湿法合成

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023626600462

A. P. Solonenko, A. E. Shevchenko, E. S. Chikanova, D. A. Polonyankin

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Crystal Structure and Physicochemical Properties of Solid Solutions Ba0.5Sm0.5Fe1–yMnyO3–δ 固溶体Ba0.5Sm0.5Fe1-yMnyO3 -δ的晶体结构和物理化学性质

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-06-05 DOI: 10.1134/S0036023625604210

A. A. Trushnikov, N. E. Volkova, M. Yu. Mychinko, T. V. Aksenova, V. A. Cherepanov

{"title":"Crystal Structure and Physicochemical Properties of Solid Solutions Ba0.5Sm0.5Fe1–yMnyO3–δ","authors":"A. A. Trushnikov, N. E. Volkova, M. Yu. Mychinko, T. V. Aksenova, V. A. Cherepanov","doi":"10.1134/S0036023625604210","DOIUrl":"10.1134/S0036023625604210","url":null,"abstract":"Based on the results of XRD analysis of samples with the general formula Ba0.5Sm0.5Fe1–yMnyO3–δ, obtained using glycerol-nitrate technique with subsequent annealing at 1300°C in air, it was established that the homogeneity range of solid solutions with a cubic structure (space group (Pmbar {3}m)) is in the interval 0.15 ≤ y ≤ 0.45. It is shown that the unit cell parameters of Ba0.5Sm0.5Fe1–yMnyO3–δ decrease with increasing manganese content. The oxygen deficiency (δ) in air at room temperature at a low manganese content (y = 0.15), determined by the iodometric titration method, does not exceed 0.1, and the oxygen content in oxides with y = 0.25 and 0.45 is close to stoichiometric. The linear thermal expansion coefficients (LTEC) of Ba0.5Sm0.5Fe1–yMnyO3–δ, obtained from dilatometric measurements, are in the range of (12.7–14.2) × 10–6 K–1 and are comparable with the LTEC of widely used electrolytes based on cerium oxide and zirconium oxide. It is shown that the relative thermal expansion of Ba0.5Sm0.5Fe1–yMnyO3–δ decreases with increasing manganese content. The temperature dependences of the total electrical conductivity of Ba0.5Sm0.5Fe1–yMnyO3–δ (y = 0.15, 0.35) have a maximum. The increase in electrical conductivity in the low-temperature region is explained by the increase in the mobility of charge carriers. The decrease in electrical conductivity in the high-temperature region is due to a decrease in the concentration of charge carriers (holes), which is associated with an increase in oxygen deficiency.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 4","pages":"485 - 494"},"PeriodicalIF":1.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154248","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}

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