Russian Chemical Bulletin最新文献_第8页

Manganese(iv) oxide δ-MnO2 as a promising sorbent for SrII, UVI, NpV to create engineered safety barriers 氧化锰(iv) δ-MnO2作为SrII， UVI， NpV的有前途的吸附剂来创建工程安全屏障

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5023-1

A. S. Semenkova, I. R. Menshikova-Tonyan, A. S. Kuzenkova, V. O. Yapaskurt, E. S. Kulikova, A. S. Ksenzova, A. Yu. Romanchuk, S. N. Kalmykov

{"title":"Manganese(iv) oxide δ-MnO2 as a promising sorbent for SrII, UVI, NpV to create engineered safety barriers","authors":"A. S. Semenkova, I. R. Menshikova-Tonyan, A. S. Kuzenkova, V. O. Yapaskurt, E. S. Kulikova, A. S. Ksenzova, A. Yu. Romanchuk, S. N. Kalmykov","doi":"10.1007/s11172-026-5023-1","DOIUrl":"10.1007/s11172-026-5023-1","url":null,"abstract":"<div>Bentonite clays are traditionally used as the main mineral component of engineered safety barriers for radioactive waste disposal, however, their sorption capacity is limited for a number of highly mobile radionuclides, including SrII, NpV, and UVI. This work investigated the sorption properties of synthetic δ-MnO2, a structural analog of natural birnessite, with respect to SrII, NpV, and UVI over a wide pH range. Despite the smaller specific surface area and cation exchange capacity compared to bentonite clay, δ-MnO2 exhibited significantly higher distribution coefficients for SrII and NpV, up to ∼106 and ∼104 mL g−1, respectively. The obtained results confirm the high efficiency of δ-MnO2 as a functional additive for modification of the sorption properties of bentonite clay-based materials and increase in the retention of highly mobile radionuclides in engineered safety barriers.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1742 - 1749"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810897","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}

引用次数: 0

Molecular complexes trans-[MBr4(OPPh3)2] (M = Zr or Hf): melt synthesis and luminescence properties 分子配合物trans-[MBr4(OPPh3)2] (M = Zr或Hf)：熔体合成及发光性能

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5043-x

N. R. Krupenko, P. A. Poltarak, S. B. Artemkina, A. A. Gabrienko, K. A. Brylev

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Peroxidase-like activity of cerium dioxide: analysis by colorimetric and chemiluminescence methods 二氧化铈过氧化物酶样活性：比色法和化学发光法分析

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5029-8

M. A. Popkov, M. M. Sozarukova, A. D. Filippova, M. A. Teplonogova, A. A. Sadovnikov, A. E. Baranchikov, V. K. Ivanov

{"title":"Peroxidase-like activity of cerium dioxide: analysis by colorimetric and chemiluminescence methods","authors":"M. A. Popkov, M. M. Sozarukova, A. D. Filippova, M. A. Teplonogova, A. A. Sadovnikov, A. E. Baranchikov, V. K. Ivanov","doi":"10.1007/s11172-026-5029-8","DOIUrl":"10.1007/s11172-026-5029-8","url":null,"abstract":"<div>A comprehensive study of the peroxidase-like activity of nanocrystalline cerium dioxide stabilized by low-molecular-weight ligands (citrate and ascorbate anions) was performed. Cerium dioxide colloidal solutions were characterized by X-ray diffraction, electron microscopy, dynamic light scattering, IR spectroscopy, and X-ray photoelectron spectroscopy. A comparative evaluation of the catalytic properties was carried out using two independent methods, such as colorimetry (oxidation of tetramethylbenzidine, TMB) and chemiluminescence (luminol oxidation). The surface modification of CeO2 with citrate and ascorbate anions affects the particle size and the aggregative stability of the sols, thereby influencing the catalytic activity of nanoparticles. The Michaelis—Menten constants, the TON (turnover number) and TOF (turnover frequency) values, and the rate constants of the elementary reactions involved in the luminol oxidation were determined. Nanodispersed CeO2 exhibits pronounced peroxidase-like activity but its catalytic efficiency is several orders of magnitude lower than that of natural peroxidase. The use of two complementary analytical approaches made it possible not only to confirm the catalytic activity of nanoparticles but also to reveal the specificity of the effect of the ligand environment on their enzyme-like activity.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1805 - 1822"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811109","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}

引用次数: 0

Sasa kurilensis-derived carbon materials for the extraction of dissolved petroleum products: synthesis and investigation 溶解石油产品提取用莎草衍生碳材料的合成与研究

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5047-6

P. A. Marmaza, E. A. Tokar, A. V. Kovekhova, D. K. Patrushev, A. I. Matskevich, A. N. Popova, O. O. Shichalin, E. K. Papynov, I. G. Tananaev

{"title":"Sasa kurilensis-derived carbon materials for the extraction of dissolved petroleum products: synthesis and investigation","authors":"P. A. Marmaza, E. A. Tokar, A. V. Kovekhova, D. K. Patrushev, A. I. Matskevich, A. N. Popova, O. O. Shichalin, E. K. Papynov, I. G. Tananaev","doi":"10.1007/s11172-026-5047-6","DOIUrl":"10.1007/s11172-026-5047-6","url":null,"abstract":"<div>The structural, textural, and adsorption properties of carbon sorbents derived from Sasa kurilensis biomass by pyrolysis at 300–900 °C were investigated. An increase in the pyrolysis temperature leads to the removal of oxygen-containing functional groups and stabilization of the carbon structure at temperatures of 600 °C and above. The materials were mainly characterized by meso- and microporosity, with the hierarchical morphology of the original biomass being preserved. Under static conditions of sorption of crude oil and petroleum products, the relationship between the sorption and selectivity properties of carbon materials and conditions of their preparation was established. The highest adsorption capacity toward dissolved petroleum products was achieved for adsorbents obtained at pyrolysis temperatures of 450–900 °C. The adsorption kinetics were adequately described by a pseudo-second-order model. The results confirm the potential of carbon materials based on Sasa kurilensis as adsorbents for extraction of petroleum products dissolved in liquid media for cleaning aquatic environments.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1994 - 2005"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810964","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}

引用次数: 0

Thiol-ene photosensitive compositions based on polybenzimidazole for LCD 3D printing 基于聚苯并咪唑的液晶3D打印用硫醇烯光敏组合物

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5046-7

Z. A. Matveev, B. Ch. Kholkhoev, V. F. Burdukovskii

引用次数: 0

Electrophysical and thermal properties of compounds SrLnCuSe3 (Ln = Sm, Er, Yb) and EuErCuSe3 化合物SrLnCuSe3 （Ln = Sm, Er, Yb）和EuErCuSe3的电物理和热性质

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5034-y

N. N. Habibullayev, S. V. Novikov, A. S. Aleksandrovsky, C. C. Volkova, O. V. Trofimova, L. N. Monina, O. V. Andreev

{"title":"Electrophysical and thermal properties of compounds SrLnCuSe3 (Ln = Sm, Er, Yb) and EuErCuSe3","authors":"N. N. Habibullayev, S. V. Novikov, A. S. Aleksandrovsky, C. C. Volkova, O. V. Trofimova, L. N. Monina, O. V. Andreev","doi":"10.1007/s11172-026-5034-y","DOIUrl":"10.1007/s11172-026-5034-y","url":null,"abstract":"<div>The compounds SrLnCuSe3 (Ln = Sm, Er, Yb) and EuErCuSe3 were obtained from metal selenides synthesized from simple substances. Measurements of electrical conductivity and Seebeck coefficient were carried out in the temperature range of 310–420 K for ceramic samples pressed at 673 K. All the obtained compounds are p-type semiconductors. For complex strontium selenides, electrical resistivity decreases with increasing temperature: ρ = 710–380 Ω cm for SrSmCuSe3 and ρ = 1.4–1.3 Ω cm for SrYbCuSe3, while in the case of the EuErCuSe3 phase, electrical resistivity increases with increasing temperature. The Seebeck coefficients increase with temperature in the ranges: S = 160–225 µV K−1 for SrSmCuSe3 and S = 12–26 µV K−1 for SrYbCuSe3. The widths of the thermal band gap Eg for SrLnCuSe3 (Ln = Sm, Er, Yb) are equal to 0.26, 0.07, and 0.06 eV, respectively. The widths of the optical band gap for direct and indirect electronic transitions correspond to 2.12, 3.84 eV and 1.7, 1.05 eV for SrSmCuSe3 as well as 1.4, 1.68 eV and 0.545 eV for SrYbCuSe3. The results indicate a strong dispersion of the bottom of the conduction band. The temperatures and enthalpies of incongruent melting of the compounds SrSmCuSe3 (T = 1485 K, ΔH = 23.2 J g−1) and SrYbCuSe3 (T = 1510 K, ΔH = 20.5 J g−1) were determined.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1868 - 1881"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810895","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}

引用次数: 0

Structural evolution of Mo—TiC via mechanical activation 机械活化Mo-TiC的结构演化

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5032-0

N. S. Ridel, S. A. Kovaleva, E. T. Devyatkina, S. V. Vosmerikov, T. M. Vidyuk, T. F. Grigoreva

{"title":"Structural evolution of Mo—TiC via mechanical activation","authors":"N. S. Ridel, S. A. Kovaleva, E. T. Devyatkina, S. V. Vosmerikov, T. M. Vidyuk, T. F. Grigoreva","doi":"10.1007/s11172-026-5032-0","DOIUrl":"10.1007/s11172-026-5032-0","url":null,"abstract":"<div>The patterns of evolution of Mo—TiC system powders (100 − x)Mo—xTiC (x = = 20–50 wt.%) during mechanical activation in a high-energy planetary ball mill for 4–12 min have been studied using X-ray diffraction (XRD) phase and strpucture analyses, scanning electron microscopy, and X-ray electron probe microanalysis. In all modes of mechanical activation, the phase composition is presented by Mo and TiC phases without the formation of new phases. In the early stages of processing, intensive grinding and nanostructuring of the components occur to particle sizes of titanium carbide 0.6–5 µm and molybdenum 0.3–2 µm, respectively, accompanied by the growth of microdeformations and formation of a highly defective structure in molybdenum. At a TiC content of 40–50 wt.%, plating of carbide particles with molybdenum and the formation of dense heterophase particles are observed. In mixtures with a lower TiC content (20–30 wt.%), the plating is weaker and is accompanied by an increased level of iron contamination. The observed regularities make it possible to substantiate the choice of optimal compositions and modes of mechanical activation for the production of refractory composite powders with minimal contamination.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1841 - 1848"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810896","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}

引用次数: 0

Formation, structure, and morphology of gadolinium orthophosphate-based preceramic powder particles 正磷酸钆基预陶瓷粉末颗粒的形成、结构和形态

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5031-1

M. O. Enikeeva, O. V. Proskurina, E. Yu. Gerasimov, V. N. Nevedomskii, V. V. Gusarov

{"title":"Formation, structure, and morphology of gadolinium orthophosphate-based preceramic powder particles","authors":"M. O. Enikeeva, O. V. Proskurina, E. Yu. Gerasimov, V. N. Nevedomskii, V. V. Gusarov","doi":"10.1007/s11172-026-5031-1","DOIUrl":"10.1007/s11172-026-5031-1","url":null,"abstract":"<div>The study of phase formation, structural transformations, and morphology of gadolinium orthophosphate nanoparticles under hydrothermal synthesis conditions (at T = 230 °C, P ≈ 10 MPa, and pH ≈ 1) was carried out. It was shown that quasi-one-dimensional nanoparticles with a rhabdophane-like structure GdPO4 • nH2O and a thickness of up to ∼10 nm are formed at the precipitation stage. Hydrothermal treatment of the precipitated suspensions in the mother liquor at pH ≈ 1 leads to a structural transformation rhabdophane → monazite after isothermal holding for 3 days; this process occurs with virtually no change in the average crystallite size of either phase. Particle growth in the monazite phase was found to occur predominantly through oriented attachment of quasi-one-dimensional nanoparticles. Based on the results obtained in the study, we propose a mechanism for the formation and structural transformation of GdPO4 • nH2O particles for the design of materials for use in various functional applications, including the preparation of preceramic nanopowders.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1831 - 1840"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810960","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}

引用次数: 0

Polymer membranes doped with metal cations for electrodialysis nitrate removal 掺杂金属阳离子的聚合物膜电渗析去除硝酸盐

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5039-6

A. A. Lysova, A. D. Manin, A. B. Yaroslavtsev

{"title":"Polymer membranes doped with metal cations for electrodialysis nitrate removal","authors":"A. A. Lysova, A. D. Manin, A. B. Yaroslavtsev","doi":"10.1007/s11172-026-5039-6","DOIUrl":"10.1007/s11172-026-5039-6","url":null,"abstract":"<div>Metal-polymer membranes based on polybenzimidazole PBI-O-PhT and transition metal ions (ZnII, CrIII, CuII) were investigated. The metal content was 25% of the number of pyridine nitrogen atoms (=N—) of the PBI-O-PhT units. The formation of metal-polymer complexes was confirmed by IR-spectroscopy and solubility testing. The obtained materials demonstrated anion-exchange properties and showed high potentiometric transport numbers for NO3− ions (up to 96.4% for PBI/Zn) and high specific ionic conductivity in the nitrate form (up to 0.11 mS cm−1 in the case of PBI/Zn). In model processes of electrodialysis desalination of a multicomponent solution containing Cl−, NO3−, and SO42− ions, all membranes exhibited increased selectivity for the transport of monovalent anions. The PBI/Zn membrane exhibited the highest specific selectivity coefficients for the NO3−/SO42− and Cl−/SO42− pairs in the final cycle of the experiment. It was established that the anion transport selectivity of the membranes decreases in the order NO3− > Cl− > SO42−, which correlates with increasing ion hydration energy. The results indicate the high potential of the metal-polymer membranes based on PBI-O-PhT for creating selective barriers in water treatment and ionic mixture separation processes.</div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"75 6","pages":"1922 - 1928"},"PeriodicalIF":1.6,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148810966","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}

引用次数: 0

Influence of electron irradiation on the defect structure and sensor properties of nanocrystalline SnO2 in CO detection 电子辐照对CO检测中SnO2纳米晶缺陷结构和传感器性能的影响

IF 1.6 4区化学

Russian Chemical Bulletin Pub Date : 2026-08-26 DOI: 10.1007/s11172-026-5024-0

K. Ya. Prikhodko, A. P. Evseev, A. D. Shporin, D. S. Yurov, V. B. Platonov, D. A. Pankratov, I. V. Sapkov, A. A. Shemukhin, M. N. Rumyantseva

引用次数: 0