Inorganic Materials最新文献_第3页

Inductively Coupled Plasma Mass Spectrometry Study of the Manganese Distribution between MnOx Surface Segregation and the Crystal Structure of SnO2 in SnO2/MnOx Nanocomposites 电感耦合等离子体质谱法研究SnO2/MnOx纳米复合材料中锰在MnOx表面偏析和SnO2晶体结构中的分布

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700627

R. S. Eshmakov, A. V. Sherstobitov, D. G. Filatova, M. N. Rumyantseva

{"title":"Inductively Coupled Plasma Mass Spectrometry Study of the Manganese Distribution between MnOx Surface Segregation and the Crystal Structure of SnO2 in SnO2/MnOx Nanocomposites","authors":"R. S. Eshmakov, A. V. Sherstobitov, D. G. Filatova, M. N. Rumyantseva","doi":"10.1134/S0020168526700627","DOIUrl":"10.1134/S0020168526700627","url":null,"abstract":"An approach has been proposed for separately determining manganese on the surface and in the bulk of SnO2/MnOx nanocomposites in order to find out relations between synthesis conditions and the composition of the materials. The approach includes inductively coupled plasma mass spectrometric (ICP-MS) determination of the total Mn and Sn concentrations in solutions of the composites and the Mn content on their surface and calculation of the additive content in the bulk of the materials. HCl, H2C2O4, Na4P2O7, and formaldoxime solutions have been used as reducing acid etching agents for surface manganese determination. The results demonstrate that surface treatment of samples with a formaldoxime solution at 20°C causes manganese on the sample surface to dissolve, whereas tin does not dissolve. We have developed a four-step temperature program for dissolving SnO2, synthesized at high temperature, in a mixture of acids in an autoclave with microwave processing for subsequent ICP-MS determination of Mn and Sn. The use of Mn/Cu and Sn/Rh internal standards has been shown to ensure a decrease in the relative standard deviation in analytical data (sr) to 0.02. The surface Mn and Sn determination results and the total manganese content have been used to assess the manganese distribution between the surface and bulk of the SnO2/MnOx composites. The results indicate that the manganese is nonuniformly distributed between the bulk and surface of the samples and that the manganese content on the surface of the composites decreases with increasing annealing time owing to diffusion of the additive into the SnO2 particles.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 1","pages":"115 - 120"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dielectric Properties of a Low-Permittivity Composite Dielectric Material 一种低介电常数复合介电材料的介电性能

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700688

D. A. Kudryavtseva, A. A. Tsymbalyuk, A. E. Komlev, A. G. Altynnikov, R. A. Platonov, A. G. Gagarin

{"title":"Dielectric Properties of a Low-Permittivity Composite Dielectric Material","authors":"D. A. Kudryavtseva, A. A. Tsymbalyuk, A. E. Komlev, A. G. Altynnikov, R. A. Platonov, A. G. Gagarin","doi":"10.1134/S0020168526700688","DOIUrl":"10.1134/S0020168526700688","url":null,"abstract":"Rapid advances in telecommunication systems operating at frequencies of 30 GHz and above (including 5G systems) require that materials having a dielectric constant under 2.2 and compatible with printed circuit board technology be designed and produced. Technological approaches to the fabrication of such materials build on forming air cavities in a starting dielectric matrix and require control over their microwave parameters (primarily over their dielectric permittivity and dielectric loss tangent) in the frequency range of interest. In this paper, we report our findings on the dielectric properties of a low-permittivity composite dielectric material. Hermetically sealed dielectric plates with a particular distribution of air cavities over their bulk were fabricated using mechanical perforation and 3D printing additive technology. Microwave parameters of the specimens obtained were determined at a frequency of ~10 GHz using a dismountable cylindrical resonator. We studied specimens with a minimum dielectric permittivity of 1.75. It has been shown that, because of a number of specific features, the use of 3D printing additive technologies leads to changes in the geometric dimensions of forming air cavities, which in turn influences the dielectric properties of the material. The results obtained in this study can be useful in designing new microwave materials.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 2","pages":"157 - 162"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

X-ray Fluorescence Determination of Sulfur in Corrosion Products as a Method for Assessing the Integrity of Oil Refinery Equipment 腐蚀产物中硫的x射线荧光测定及其对炼油设备完整性的评价

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700536

A. Yu. Ivanchenko, S. S. Rodin, L. A. Pyankova

{"title":"X-ray Fluorescence Determination of Sulfur in Corrosion Products as a Method for Assessing the Integrity of Oil Refinery Equipment","authors":"A. Yu. Ivanchenko, S. S. Rodin, L. A. Pyankova","doi":"10.1134/S0020168526700536","DOIUrl":"10.1134/S0020168526700536","url":null,"abstract":"Analytical capabilities of Wavelength Dispersive X-ray Fluorescence Spectroscopy (WDXRF) for determining total sulfur in corrosion deposits from oil refinery and petrochemical equipment were assessed for the early detection of material degradation. Deposit samples collected from various process equipment exposed to aggressive environments were analyzed. Total sulfur content was determined using a standard-free method of fundamental parameters and calibration curves constructed by analyzing standard samples using regression models. Samples of corrosion deposits from process equipment, primarily iron sulfides and sulfates, served as standards. Sulfur content in the standard samples was determined gravimetrically. When constructing calibration curves, it is necessary to first study the influence of iron (the base) and other significant components (e.g., calcium) on the sulfur determination results. To accurately determine sulfur, its predominant valence form in corrosion products must also be taken into account: the sulfate form of sulfur is confirmed by the presence of an SKβ' satellite peak in the X-ray fluorescence spectrum. Developed method enables rapid analysis necessary for monitoring the condition of oil and gas equipment, predicting its remaining service life, and assessing operational risks.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 1","pages":"32 - 38"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Metal-Affinity Sorbents Based on Thin Lanthanide Stearate Films 基于硬脂酸镧薄膜的新型金属亲和吸附剂

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S002016852670055X

Ya. K. Kalninia, A. E. Khomyak, M. V. Zhukov, N. G. Sukhodolov, E. P. Podolskaya

{"title":"New Metal-Affinity Sorbents Based on Thin Lanthanide Stearate Films","authors":"Ya. K. Kalninia, A. E. Khomyak, M. V. Zhukov, N. G. Sukhodolov, E. P. Podolskaya","doi":"10.1134/S002016852670055X","DOIUrl":"10.1134/S002016852670055X","url":null,"abstract":"New lanthanide stearate-based metal-affinity sorbents have been designed, characterized, and studied in a lab-on-a-plate format. Using the Langmuir method adapted to a hemispherical droplet surface, we have prepared 13 new sorbents in the form of collapsed thin films (monolayers) of cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium stearates on the surface of a target for matrix-assisted laser desorption/ionization mass spectrometric (MALDI-MS) analysis. Optical, scanning electron, and atomic force microscopy results indicate the formation of spots of a material with a large surface area on the target. As shown by the MALDI-MS method, the main structural unit is a metal distearate having one labile valence. All of the structures are specific to blood protein adducts with chlorine-containing compounds, which confirms their metal-affinity properties. In metal-affinity extraction in a lab-on-a-plate format, the sorbents based on ytterbium, thulium, erbium, gadolinium, neodymium, and cerium stearates exhibit the most pronounced metal-affinity properties and a good level of specificity and selectivity. Gadolinium stearate-based structures can be thought of as universal metal-affinity sorbents having great potential for use in bioorganic analysis. The metal-affinity sorbents containing neodymium, praseodymium, gadolinium, dysprosium, holmium, thulium, and lutetium have been studied and described for the first time.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 1","pages":"49 - 59"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of the Content of Fatty Acids with Conjugated C=C Bonds in Pomegranate Seed Oil by Raman Spectroscopy 拉曼光谱法测定石榴籽油中共轭C=C键脂肪酸的含量

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700500

S. M. Kuznetsov, V. S. Novikov, P. K. Laptinskaya, O. S. Kudryavtsev, M. N. Moskovskiy, E. A. Sagitova

{"title":"Determination of the Content of Fatty Acids with Conjugated C=C Bonds in Pomegranate Seed Oil by Raman Spectroscopy","authors":"S. M. Kuznetsov, V. S. Novikov, P. K. Laptinskaya, O. S. Kudryavtsev, M. N. Moskovskiy, E. A. Sagitova","doi":"10.1134/S0020168526700500","DOIUrl":"10.1134/S0020168526700500","url":null,"abstract":"An approach is proposed for the first time for rapid estimation of the punicic acid content in pomegranate seed oil from Raman (combination) scattering spectra. Raman spectra of mixtures of pomegranate seed oil and sunflower oil were studied using two excitation wavelengths (532 and 785 nm). These oil mixtures were treated as model systems of pomegranate seed oil with varying punicic acid content. Using density functional theory, the Raman spectrum of the punicic acid molecule was calculated. On the basis of these studies it was found that the ratio of the peak intensities I1628/I1442 of the spectral lines at 1628 and 1442 cm–1 is proportional to the punicic acid content in the oil. The Raman band near 1628 cm–1 is associated with stretching vibrations of the C=C bonds in sequences of three conjugated double bonds in molecules of this acid. The band near 1442 cm–1 corresponds to deformation (bending) vibrations of C–H bonds in CH2 groups in the molecules of all fatty acids in pomegranate seed oil. It is shown that Raman spectroscopy allows identification of punicic acid in pomegranate seed oil even at low concentrations (1 wt %). Additionally, it was found that Raman spectra recorded with 532 nm excitation permit detection of carotenoids in pomegranate seed oil.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 1","pages":"9 - 15"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical Composition and Structure of Copper Nanoparticles Produced by Plasma Deposition 等离子沉积法制备铜纳米颗粒的化学成分和结构

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700792

V. B. Borodulin, E. V. Mironova, M. A. Lazov, Ya. V. Borodulin

{"title":"Chemical Composition and Structure of Copper Nanoparticles Produced by Plasma Deposition","authors":"V. B. Borodulin, E. V. Mironova, M. A. Lazov, Ya. V. Borodulin","doi":"10.1134/S0020168526700792","DOIUrl":"10.1134/S0020168526700792","url":null,"abstract":"Transition metals as trace elements play an important role in oxidation–reduction reactions in the human body and act as catalysts in the composition of enzymes. In the form of nanoparticles, they exhibit pronounced biological activity. In this paper, we report the chemical composition and structure of particular size fractions of nanoparticles studied by X-ray spectroscopic methods. We analyze physicochemical parameters of copper nanoparticles produced by plasma deposition. The nanoparticle size has been determined by the angular backscattering method and scanning electron microscopy. The phase composition of nanoparticles differing in size and the chemical composition of their surface have been determined qualitatively and calculated quantitatively. The results indicate that the surface layer of the copper nanoparticles consists of oxide species. We have determined the percentage of oxide species in the overall volume of larger and smaller nanoparticles. The results of this study can be useful in research on surface modification of nanoparticles with various functional groups and adsorption of high-molecular-weight surfactants on the surface of nanoparticles for improving their biocompatibility.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 2","pages":"237 - 242"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorption Atomic Emission Determination of Platinum and Palladium in Process Liquors Using the Lewatit AF5 Sorbent 用lewaitt AF5吸附剂吸附原子发射法测定工艺液中的铂和钯

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700639

A. E. Vysotina, G. B. Slepchenko

{"title":"Sorption Atomic Emission Determination of Platinum and Palladium in Process Liquors Using the Lewatit AF5 Sorbent","authors":"A. E. Vysotina, G. B. Slepchenko","doi":"10.1134/S0020168526700639","DOIUrl":"10.1134/S0020168526700639","url":null,"abstract":"A technique has been developed for determination of platinum and palladium in refining liquors by inductively coupled plasma atomic emission spectrometry (ICP-AES) with preconcentration on a synthetic carbon sorbent. The concentration of the platinum group metals in the solutions studied was below the quantification limit of the ICP-AES method (~0.1 mg/dm3). We have determined the dynamic exchange capacity (DEC) of the sorbent in the case of platinum and palladium preconcentration: the DEC is (0.7–1.6) × 10–3 mg/g for Pt and (0.7–0.9) × 10–3 mg/g for Pd, depending on the type of process liquor. Using the DEC values, we have calculated the effective sorbent weight needed to ensure platinum and palladium recovery, which has been determined to be 155.9 g. To extract platinum and palladium from a test solution, it is passed through a sorbent-packed column for 4 h, and the analytes are eluted with aqua regia and then determined in the eluate by the ICP-AES method. Platinum recovery in the sorption preconcentration step is 98.7–99.3%, depending on the type of solution, and palladium recovery is 98.9–99.7%. The degree of platinum and palladium elution is 98.7 ± 0.3 and 98.8 ± 0.4%, respectively. To assess the adequacy of the proposed technique, model solutions having different concentrations of platinum group metals have been analyzed by inductively coupled plasma mass spectrometry (ICP-MS) as well. The results obtained by the two methods are comparable, which suggests that the proposed technique for sorption atomic emission determination of Pt and Pd can be used as a cheaper alternative to ICP-MS in analysis of refining liquors containing trace levels of platinum group metals.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 1","pages":"121 - 125"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the Intergranular Corrosion Resistance of 20Kh13 and 40Kh13 Steels 20Kh13和40Kh13钢抗晶间腐蚀性能评价

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700731

Yu. S. Mordovina, M. A. Chernigin, M. E. Fedosova

引用次数: 0

Thermal Properties of Nitro Derivatives of Polychlorobiphenyls 多氯联苯硝基衍生物的热性能

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S0020168526700810

T. I. Gorbunova, T. V. Kulikova, O. V. Ryzhkov, V. A. Bykov

{"title":"Thermal Properties of Nitro Derivatives of Polychlorobiphenyls","authors":"T. I. Gorbunova, T. V. Kulikova, O. V. Ryzhkov, V. A. Bykov","doi":"10.1134/S0020168526700810","DOIUrl":"10.1134/S0020168526700810","url":null,"abstract":"As a result of transboundary transport through the air, water, and food chains, polychlorobiphenyls—persistent organic pollutants—have spread everywhere over the period of their production and use as dielectric fluids. Nitro derivatives of polychlorobiphenyls—secondary pollutants—are also hazardous to the environment and people, but their thermal properties have not yet been studied in sufficient detail. The purpose of this work is to study the thermal properties of nitro derivatives of polychlorobiphenyls. We analyze synthesized nitro derivatives of polychlorobiphenyls present in the composition of Trichlorobiphenyl and Sovol commercial mixtures. Simultaneous thermal analysis data indicate that mixtures of the nitro derivatives tend to undergo sublimation, rather than thermal decomposition. We have determined their sublimation onset temperatures and enthalpies of sublimation. The thermal stability of the nitro derivatives has been shown to decrease as the number of chlorine substituents in the structure of biphenyl increases. Moreover, with increasing ambient temperature, polychlorinated nitroarenes can pass into the boundary atmospheric layer, which is characterized by temperature inversion and increased pollution. The results of this study can be helpful in improving techniques for monitoring nitro derivatives of polychlorobiphenyls in environmental entities.","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 2","pages":"249 - 255"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of the Composition and Properties of Iron Sulfide During Hydrogen Sulfide Corrosion in Vapor Phase 气相硫化氢腐蚀过程中硫化铁的组成及性能研究

IF 0.5 4区材料科学

Inorganic Materials Pub Date : 2026-06-17 DOI: 10.1134/S002016852670069X

R. K. Vagapov

{"title":"Study of the Composition and Properties of Iron Sulfide During Hydrogen Sulfide Corrosion in Vapor Phase","authors":"R. K. Vagapov","doi":"10.1134/S002016852670069X","DOIUrl":"10.1134/S002016852670069X","url":null,"abstract":"The impact of hydrogen sulfide contained in hydrocarbons being extracted at oil and gas facilities on steel equipment and pipelines is dangerous not only due to corrosion damage, but also because of penetration of hydrogen into carbon and low-alloy steels. However, such a negative impact on the durability and properties of constructural materials has previously been studied primarily for liquid environment conditions typical of oil fields. This article presents the results of a study of internal corrosion processes in gas fields. The regularities and features of the composition and properties of sediments being formed in gas pipelines during the interaction of H2S-containing gas with steel are analyzed. Using X-ray diffraction, it is determined that the main corrosion products are iron sulfides (tetragonal and cubic) being formed in gaseous and liquid phases. The shapes of hydrogen sulfide corrosion product crystals being formed on the steel surface are studied using scanning electron microscopy. The influence of differences in their phase composition and crystalline shapes on general corrosion losses and hydrogenation of steels is revealed. In addition, the lack of continuity in the iron sulfide film can lead to the formation of local corrosion defects on steel constructions. The obtained results can be used to assess the degree of danger of hydrogen sulfide corrosion on steel equipment in gas fields and pipelines, as well as to select anti-corrosion protection agents (i.e., corrosion inhibitors).","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"62 2","pages":"163 - 171"},"PeriodicalIF":0.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0