Russian Journal of Inorganic Chemistry最新文献_第10页

Synthesis of Heterogeneous Nanocomposite Catalyst ZrO2@SBA-15 for Formic Acid Production from Hemicelluloses 合成异质纳米复合催化剂 ZrO2@SBA-15 用于利用半纤维素生产甲酸

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600497

S. A. Novikova, Ya. R. Shaer, A. O. Eremina, V. V. Sychev, S. V. Baryshnikov, O. P. Taran

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Stability of Supramolecular β-Cyclodextrin–Pyrene Complexes in a Silicate Hydrogel Matrix 硅酸盐水凝胶基质中β-环糊精-苯乙烯超分子复合物的稳定性

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600400

A. V. Kondakova, A. A. Medvedeva, A. V. Koshkin

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Synthesis and Study of Sorption Properties of Ca3La6(SiO4)6 Biocomposite for Targeted Delivery of 5-Fluorouracil 用于 5-氟尿嘧啶靶向给药的 Ca3La6(SiO4)6 生物复合材料的合成及其吸附特性研究

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600412

O. O. Shichalin, O. V. Kapustina, Z. E. Kornakova, S. S. Gribanova, V. Y. Mayorov, A. N. Fedorets, A. O. Lembikov, V. V. Vasilyeva, I. Y. Buravlev, V. I. Apanasevich, E. K. Papynov

{"title":"Synthesis and Study of Sorption Properties of Ca3La6(SiO4)6 Biocomposite for Targeted Delivery of 5-Fluorouracil","authors":"O. O. Shichalin, O. V. Kapustina, Z. E. Kornakova, S. S. Gribanova, V. Y. Mayorov, A. N. Fedorets, A. O. Lembikov, V. V. Vasilyeva, I. Y. Buravlev, V. I. Apanasevich, E. K. Papynov","doi":"10.1134/s0036023624600412","DOIUrl":"https://doi.org/10.1134/s0036023624600412","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The dispersed Ca3La6(SiO4)6 biocomposite was obtained by treating a calcium silicate sol containing 0.1, 0.3, and 0.7 mol of La3+ under hydrothermal conditions. The composition, morphology, and structure of the biocomposite were studied by powder X-ray diffraction, SEM, and EDS methods. The reaction products (CaSiO3, CaLa4(SiO4)3O, Ca3La6(SiO4)6) depending on the La3+ concentration were determined. The structural characteristics of biocomposite powders with different La3+ contents were investigated by BET and DFT methods. The sorption characteristics of the materials towards 5-fluorouracil were studied depending on pH. The highest sorption capacity (0.768 mg/g at pH 3) was found for the Ca3La6(SiO4)6 sample containing 0.3 mol of La3+. Additionally, the biocompatible properties of biocomposite samples in contact with artificial blood plasma were evaluated by establishing the key changes in their composition, morphology, and structure upon the formation of the apatite bioactive phase on the accessible surface of the samples. These results hold promise for further development of new sorption materials, including biomaterials, for targeted drug delivery with a potential for practical application.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863663","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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Strengthening of Spherical V2O5/TiO2−SiO2 Composites Obtained by Template Synthesis Combined with Sol-Gel Method 通过模板合成与溶胶-凝胶法结合获得的球形 V2O5/TiO2-SiO2 复合材料的增强性

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624700529

S. A. Kuznetsova, O. S. Khalipova, A. N. Shamsutdinova

{"title":"Strengthening of Spherical V2O5/TiO2−SiO2 Composites Obtained by Template Synthesis Combined with Sol-Gel Method","authors":"S. A. Kuznetsova, O. S. Khalipova, A. N. Shamsutdinova","doi":"10.1134/s0036023624700529","DOIUrl":"https://doi.org/10.1134/s0036023624700529","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>This study is devoted to the preparation of strong spherical V2O5/TiO2–SiO2 composite by a combined template and sol-gel method. The composition, size, and shape of the colloidal particles in butanol sol with tetrabutoxytitanium and tetraethoxysilane have been determined. The physicochemical processes leading to the strengthening of the spherical agglomerates obtained using an anion exchanger with a gel structure have been established. Electrophoresis, small-angle X-ray scattering, and viscometry have been used to demonstrate the presence of positively charged colloidal particles of lenticular and cylindrical shape in the sol. The size of the particles, when the sol is stabilized, reaches 53 Å. The absorption of the sol by the anion exchanger in vanadium form is due to the equalization of the osmotic pressure in the anion exchanger/sol system. Spherical composites with a diameter of 300 µm have been obtained. It has been shown by X-ray powder diffraction that the composites consist of V2O5 with an orthorhombic structure, TiO2 with an anatase structure, and amorphous silicon dioxide. The interaction at the interface between the phases of V2O5 with TiO2 and SiO2 has been demonstrated by IR and Raman spectroscopy. This interaction leads to the strengthening of the sphere of the V2O5/TiO2–SiO2 composite. The results obtained can be used for the synthesis of the spherical MxOy/TiO2–SiO2 composites.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863667","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}

引用次数: 0

Electronic Structure of Cobalt Phosphates Co1 – xMxPO4 Doped with Iron and Nickel Atoms 掺杂铁原子和镍原子的钴磷酸盐 Co1 - xMxPO4 的电子结构

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600540

M. D. Pecherskaya, O. A. Galkina, O. N. Ruzimuradov, Sh. I. Mamatkulov

{"title":"Electronic Structure of Cobalt Phosphates Co1 – xMxPO4 Doped with Iron and Nickel Atoms","authors":"M. D. Pecherskaya, O. A. Galkina, O. N. Ruzimuradov, Sh. I. Mamatkulov","doi":"10.1134/s0036023624600540","DOIUrl":"https://doi.org/10.1134/s0036023624600540","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>In this research, the electronic states, band structures, and bond properties of the framework compounds of CoPO4, Co1 – xFexPO4, and Co1 – xNixPO4 were investigated by the density functional theory calculations. The potential capabilities of these systems in the photocatalytic water splitting to produce hydrogen were analyzed. The spin-up electron densities of states for the CoPO4, Co1 – xFexPO4, and Co1 – xNixPO4 systems have band gaps of 2.7, 3.4, and 3.45 eV, respectively. The band of spin-down electron states has several energy gaps above the Fermi level. The density of states of electron with spin up near the Fermi level is obviously greater than that of electrons with spin down. In this case, localized states of electrons appear in the band gap of doped semiconductors due to impurity atoms. The calculated value of the energy at the lower edge of the conduction band for CoPO4 was –0.7 eV, which is more negative than the energy required for water splitting. Meanwhile, the calculated value of the energy at the upper edge of the valence band was 2.01 eV, which is more positive than the oxygen evolution energy of 1.23 eV.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863660","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}

引用次数: 0

Synthesis and Study of Ru-Containing Catalysts on Mesostructured Carbon for Glucose Hydrogenation 用于葡萄糖氢化的介质结构碳上含 Ru 催化剂的合成与研究

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600527

Yu. N. Zaitseva, A. O. Eremina, V. V. Sychev, V. A. Golubkov, S. A. Novikova, O. P. Taran, S. D. Kirik

{"title":"Synthesis and Study of Ru-Containing Catalysts on Mesostructured Carbon for Glucose Hydrogenation","authors":"Yu. N. Zaitseva, A. O. Eremina, V. V. Sychev, V. A. Golubkov, S. A. Novikova, O. P. Taran, S. D. Kirik","doi":"10.1134/s0036023624600527","DOIUrl":"https://doi.org/10.1134/s0036023624600527","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Hydrogenation catalysts based on functionalized CMK-3 (Carbon Mesostructured by KAIST) carbon material and ruthenium nanoparticles have been developed. SBA-15 mesostructured silicate with enlarged wall channels has been used as a template for the carbon replica synthesis. The effect of carbon material functionalization via humid air oxidation and sulfonation on the morphology, physicochemical properties, and activity of the catalyst has been studied. The degree of dispersion, localization, and electronic state of supported ruthenium depending on the support functionalization method have been determined. The initial support structure preservation after Ru deposition has been confirmed by a number of physicochemical methods. Metal particles are distributed over carrier surface without agglomeration, at size corresponding to mesostructure which provides high accessibility of active centers. The catalysts have been tested in the hydrogenation of glucose into sorbitol. Pore morphology and preservation of initial carbon support structure play important role in the catalytic activity of Ru particles.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863698","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}

引用次数: 0

Application of Vanadyl Alkoxoacetylacetonate in Formation of V2O5 Electrochromic Films 烷氧基乙酰丙酮酸钒酯在形成 V2O5 电致变色薄膜中的应用

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600904

P. Yu. Gorobtsov, A. S. Mokrushin, N. P. Simonenko, E. P. Simonenko, N. T. Kuznetsov

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Spectral Properties of Tolane and Its Supramolecular Complexes in Solution and Silicate Hydrogel 溶液和硅酸盐水凝胶中的托兰及其超分子复合物的光谱特性

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600291

G. O. Novitskii, A. A. Medvedeva, A. V. Koshkin, A. I. Vedernikov, N. A. Lobova

引用次数: 0

Transformation of the Surface of HfB2–SiC–C(graphene) Ultrahigh-Temperature Ceramics in a High-Velocity Flow of Dissociated Nitrogen HfB2-SiC-C (石墨烯) 超高温陶瓷表面在高速离解氮流中的转变

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-31 DOI: 10.1134/s0036023624600825

E. P. Simonenko, A. F. Kolesnikov, A. V. Chaplygin, A. S. Lysenkov, I. A. Nagornov, I. V. Lukomskii, S. S. Galkin, A. S. Mokrushin, N. P. Simonenko, N. T. Kuznetsov

{"title":"Transformation of the Surface of HfB2–SiC–C(graphene) Ultrahigh-Temperature Ceramics in a High-Velocity Flow of Dissociated Nitrogen","authors":"E. P. Simonenko, A. F. Kolesnikov, A. V. Chaplygin, A. S. Lysenkov, I. A. Nagornov, I. V. Lukomskii, S. S. Galkin, A. S. Mokrushin, N. P. Simonenko, N. T. Kuznetsov","doi":"10.1134/s0036023624600825","DOIUrl":"https://doi.org/10.1134/s0036023624600825","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The effect of a high-velocity flow of dissociated nitrogen on a sample of HfB2–30 vol % SiC ultrahigh-temperature ceramic materials modified with low amounts of reduced graphene oxide was studied to evaluate the potential of these materials in creating aerospace equipment intended for use in N2-based atmospheres. It was determined that, under the selected treatment conditions during a stepwise increase in the anode supply power of the plasma torch and, accordingly, in the acting heat flux at certain process parameters, the surface temperature of the sample sharply increases from ~1750 to 2000–2100°C. A further increase in the heat flux does not have an obvious and proportional effect on the surface temperature of the sample, which may indicate its high catalyticity with respect to surface recombination reactions of atomic nitrogen. It was shown that the surface layers of the material undergo a chemical transformation (removal of silicon-containing substances and formation of a new phase based on HfN), which is accompanied by a significant change in the microstructure (formation of dendrite-like structures), affecting the optical and catalytic characteristics of the surface.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863658","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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Directed Hydrothermal Synthesis of Aluminosilicates of Various Structural Types and Prospects for Their Use in Medicine 各种结构类型铝硅酸盐的定向水热合成及其在医学中的应用前景

IF 2.1 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2024-07-17 DOI: 10.1134/s0036023623603380

O. Yu. Golubeva, Yu. A. Alikina, E. Yu. Brazovskaya, N. Yu. Ul’yanova

{"title":"Directed Hydrothermal Synthesis of Aluminosilicates of Various Structural Types and Prospects for Their Use in Medicine","authors":"O. Yu. Golubeva, Yu. A. Alikina, E. Yu. Brazovskaya, N. Yu. Ul’yanova","doi":"10.1134/s0036023623603380","DOIUrl":"https://doi.org/10.1134/s0036023623603380","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The results of analysis and experimental studies of the possibilities of using synthetic aluminosilicates (montmorillonites, kaolinites, and zeolites) in medicine are presented. In particular, the following application fields are discussed: the field of enterosorption and hemosorption, the development of targeted drug delivery systems with prolonged and pH-controlled release of the active substance in various environments, as well as components of wound dressings. Montmorillonites, aluminosilicates of the kaolinite subgroup with different particle morphologies and zeolites of structural types Beta, Rho, and Y have been obtained under hydrothermal conditions and characterized by physicochemical methods. The results of studying the adsorption and desorption of model drugs (thiamine hydrochloride, and 5-fluorouracil) from porous aluminosilicate matrices of various chemical compositions in various media simulating body environments, adsorption of markers of endogenous intoxication (methylene blue), the ability of aluminosilicates to biodegrade in body environments, and studies of biological activity, in particular cytotoxicity and hemolytic activity of synthetic aluminosilicates, are presented. The results obtained show significant prospects for the use of synthetic aluminosilicates to obtain non-toxic, highly effective sorbents for medical use and drug carriers.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720031","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}

引用次数: 0