Russian Chemical Bulletin最新文献_第9页

Combinatorial-topological approach to assessing the morphology of composites 评估复合材料形态的组合拓扑方法

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5027-x

D. V. Manukovskaya, A. O. Kalashnikov, V. V. Timoshenko, E. A. Grachev, M. V. Chernyavsky, I. G. Tananaev

{"title":"Combinatorial-topological approach to assessing the morphology of composites","authors":"D. V. Manukovskaya, A. O. Kalashnikov, V. V. Timoshenko, E. A. Grachev, M. V. Chernyavsky, I. G. Tananaev","doi":"10.1007/s11172-026-5027-x","DOIUrl":"10.1007/s11172-026-5027-x","url":null,"abstract":"<div><p>A new combinatorial-topological approach is proposed for the quantitative description of complex three-dimensional structures of multiphase materials. The method is based on the calculations of topological invariants, the Betti numbers β<sub>0</sub>, β<sub>1</sub>, and β<sub>2</sub>, for each of the selected phases and their systematic comparison in the case of virtual pairwise combinations. A formalized system is proposed to interpret the changes in the Betti numbers, including a basic algorithm for the case of an equal number of objects (1 + 1 type) and an extended classification for the case of unequal quantities (5 + 10 type), that allows the determination of the type of contacts and the minimum structural configuration of the resulting aggregates. The practical applicability of the method was demonstrated by an example of a 3D tomographic image of a rock (meimechite from the Kontozero massif, the Kola Peninsula). The following specific types of spatial relationships between the mineral phases were identified: serpentine and olivine form extended chains, the host matrix serves as the binding framework for olivine, whereas magnetite forms clusters predominantly with olivine. The prospects for developing this approach aimed at creating the complete matrix of interpretation scenarios and its automation are discussed. The method opens the possibility of passing from the qualitative description of textures to their rigorous quantitative formalization, which is essential for the prediction of the material properties, the assessment of the process parameters, and the creation of datasets for training neural network models that establish the structure—property relationship for multiphase materials.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1787 - 1795"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 evaluation of the linear thermal expansion coefficient of ultrahigh-entropy ceramics (La,Sm,Nd,Gd,Dy,Yb,Y,Er,Eu,Tb,Ho,Lu)2Hf2O7 超高熵陶瓷（La,Sm,Nd,Gd,Dy,Yb，Y,Er,Eu,Tb,Ho,Lu）2Hf2O7的合成及线性热膨胀系数评价

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5044-9

E. A. Trofimov, D. V. Iarushina, D. E. Zhivulin, D. V. Mikhailov, O. V. Zaitseva, M. Anandkumar, K. S. Litvinyuk

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Prospects for the synthesis and practical application of layered multicomponent titanium carbides and nitrides 层状多组分碳化钛和氮化钛的合成及应用前景

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5019-x

L. O. Lvov, A. S. Chernyavskii, E. A. Goodilin, K. A. Solntsev

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Perovskite quantum dots: synthesis, stabilization, and hydrophilic modification for bioanalytical applications 钙钛矿量子点：合成、稳定和生物分析应用的亲水性改性

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5020-4

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

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Highly effective reactive organic luminophores based on 2,1,3-benzothiadiazole and luminescent organosilicon compositions based on them 基于2,1,3-苯并噻唑的高效反应性有机发光基团及其发光有机硅组合物

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5045-8

D. K. Gaikov, E. A. Gaikova, E. A. Svidchenko, N. M. Surin, E. Yu. Katarzhnova, O. V. Borshchev, S. A. Ponomarenko

{"title":"Highly effective reactive organic luminophores based on 2,1,3-benzothiadiazole and luminescent organosilicon compositions based on them","authors":"D. K. Gaikov, E. A. Gaikova, E. A. Svidchenko, N. M. Surin, E. Yu. Katarzhnova, O. V. Borshchev, S. A. Ponomarenko","doi":"10.1007/s11172-026-5045-8","DOIUrl":"10.1007/s11172-026-5045-8","url":null,"abstract":"<div><p>New luminescent organosilicon compositions were made by covalent embedding of the reactive 2,1,3-benzothiadiazole-based organic luminophores into a cross-linked polysiloxane matrix. To overcome the concentration quenching common for the conventional mixtures, symmetrical organic luminophores functionalized with dimethyl(vinyl)silyl groups acting as an embedded cross-linker were synthesized. The luminophores were introduced into the organosilicon matrix through a two-step UV-initiated reaction, which ensured their homogeneous dispersion at the molecular level. The obtained polymer composites with a luminophore content up to 3 wt.% showed excellent optical transparency and intense photoluminescence in the orange (λ<sub>max</sub> = 585 nm) and red (λ<sub>max</sub> = 650 nm) spectral regions. The results demonstrate a reliable strategy for constructing highly efficient and thermally stable wavelength-shifting organosilicon coatings for advanced applications in organic optoelectronics and photonics.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1974 - 1984"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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Electrochemical synthesis of tungsten carbides on carbon fibers in molten salts and their elastic properties 熔盐中碳纤维上碳化钨的电化学合成及其弹性性能

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5038-7

V. S. Dolmatov, V. V. Efremov, R. I. Korneikov, I. G. Tananaev

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Phase composition, crystal and local structure of synthetic colusite Cu26V2Sn6S32 合成铜长石Cu26V2Sn6S32的相组成、晶体及局部结构

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5035-x

A. O. Polevik, A. V. Sobolev, I. A. Presniakov, K. A. Lyssenko, A. V. Shevelkov

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New Ti- and Mo-containing MXene-based materials for solar energy conversion 太阳能转换用新型含钛、含钼mxene基材料

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5028-9

R. F. Alekseev, D. B. Vasilchenko, A. V. Zhurenok, D. D. Mishchenko, V. A. Lomakina, E. Yu. Gerasimov, E. A. Kozlova

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Influence of solvothermal synthesis temperature in n-butanol on the microstructure and gas-sensing properties of nanodispersed ZnO 正丁醇溶剂热合成温度对纳米分散ZnO微观结构和气敏性能的影响

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5026-y

A. S. Mokrushin, S. A. Dmitrieva, I. A. Nagornov, T. L. Simonenko, S. Yu. Kottsov, N. P. Simonenko, I. R. Vakhitov, E. P. Simonenko, N. T. Kuznetsov

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Self-propagating high-temperature synthesis and hot pressing of ultrahigh-temperature boride-carbide composition based on (Hf,Ta)B2—(Hf,Ta)C solid solutions 基于（Hf,Ta）B2 - (Hf,Ta)C固溶体的超高温硼化物-碳化物组合物自蔓延高温合成及热压

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5033-z

V. V. Korolev, N. A. Soloshchenko, Yu. S. Pogozhev, A. A. Zaitsev, E. A. Levashov

{"title":"Self-propagating high-temperature synthesis and hot pressing of ultrahigh-temperature boride-carbide composition based on (Hf,Ta)B2—(Hf,Ta)C solid solutions","authors":"V. V. Korolev, N. A. Soloshchenko, Yu. S. Pogozhev, A. A. Zaitsev, E. A. Levashov","doi":"10.1007/s11172-026-5033-z","DOIUrl":"10.1007/s11172-026-5033-z","url":null,"abstract":"<div><p>Boride-carbide ceramics based on (Hf,Ta)B<sub>2</sub> and (Hf,Ta)C solid solutions, including compositions containing 8 and 25 wt.% SiC, were produced by combining self-propagating high-temperature synthesis (SHS) and hot pressing (HP). The thermodynamic stability regions of the (Hf,Ta)B<sub>2</sub> and (Hf,Ta)C solid solutions expand with increasing temperature. The combustion temperature and combustion rate of the Hf–Ta–B–C mixture were determined. Structure formation of the synthesis products is a multistage process governed by the gas-transport reactions and by the liquid- and solid-state diffusion processes that dominate in different zones of the combustion wave. The formation of the (Hf,Ta)B<sub>2</sub> and (Hf,Ta)C solid solutions occurs in the post-combustion zone. It was established that the reaction mixture preparation procedure influences the structure and properties of the synthesis products. Hot pressing yielded ceramics with highly homogeneous structure representing intertwined frameworks of (Hf,Ta)B<sub>2</sub> and (Hf,Ta)C grains. The best combination of properties was obtained for the composition containing 25 wt.% SiC.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1849 - 1867"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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