Журнал неорганической химии最新文献

Preparation of strontium hexaferrite based materials by solution combustion: the effect of charges arising in precursors and an external magnetic field 通过溶液燃烧制备六价锶铁基材料：前驱体中产生的电荷和外部磁场的影响

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020013

A. A. Ostroushko, I. Gagarin, E. V. Kudyukov, T. Y. Zhulanova, A. E. Permyakova, O. Russkikh

{"title":"Preparation of strontium hexaferrite based materials by solution combustion: the effect of charges arising in precursors and an external magnetic field","authors":"A. A. Ostroushko, I. Gagarin, E. V. Kudyukov, T. Y. Zhulanova, A. E. Permyakova, O. Russkikh","doi":"10.31857/s0044457x24020013","DOIUrl":"https://doi.org/10.31857/s0044457x24020013","url":null,"abstract":"The formation of electric charges during the synthesis of complex oxide materials based on strontium hexaferrite SrFe12O19, including doped with lanthanum and cobalt ions, via the combustion of nitrate-organic precursors has been established. Precursors included polyvinyl alcohol or glycine as organic component. The intensity of charge generation was lower for precursors containing a larger amount of organic component. Data on the magnetic characteristics of the samples were obtained: magnetization, coercive force. The influence of an external magnetic field during the synthesis of hexaferrites significantly affected the coercive force of the samples and allowed to increase its values due to the formation of extended ensembles of nanoparticles. At the same time, such an effect on samples with a relatively low level of charge generation during precursor combustion was more effective. The relationship between the factors influencing the formation of extended aggregates is analyzed. The Sr0.8La0.2Fe11.8Co0.2O19 samples had the maximum coercive force. One of the techniques for increasing the coercive force is a two-stage thermomagnetic treatment, including a low-temperature stage. The formation of branched extended structures at the macro- and micro-levels was found during the combustion of glycine-containing precursors.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Copper(II) complexes with mono- and doubly reduced forms of 3,5-di-tert-octyl-o-benzoquinone 3,5- 二叔辛基邻苯醌的单还原型和双还原型铜（II）配合物

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020073

O. Trofimova, A. V. Maleeva, M. V. Arseniev, T. N. Kocherova, A. V. Cherkasov, I. Yakushev, P. V. Dorovatovski, A. Piskunov

引用次数: 0

Alkaline Metal Fluoroxalatouranylates: Structure and Some Properties 碱性金属氟氧丙酮尿苷：结构和某些性质

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020054

V. Serezhkin, М. S. Grigoriev, М. V. Sukacheva, V. Losev, L. B. Serezhkina

引用次数: 0

Synthesis of copper(II) oxide nanoparticles by anion-exchange resin precipitation and production of their stable hydrosols 通过阴离子交换树脂沉淀法合成纳米氧化铜（II）粒子并生产其稳定的水溶液

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020121

A. Pavlikov, S. V. Saikova, A. Samoilo, D. V. Karpov, S. A. Novikova

{"title":"Synthesis of copper(II) oxide nanoparticles by anion-exchange resin precipitation and production of their stable hydrosols","authors":"A. Pavlikov, S. V. Saikova, A. Samoilo, D. V. Karpov, S. A. Novikova","doi":"10.31857/s0044457x24020121","DOIUrl":"https://doi.org/10.31857/s0044457x24020121","url":null,"abstract":"Copper (II) oxide nanoparticles are promising materials for applications in catalysis, biomedicine and photovoltaics. It is also possible to use them for the preparation of nanocomposites and hybrid nanoparticles. This work presents a new method for the synthesis of CuO nanoparticles, which allows their one-step preparation without washing and heating. The proposed anion-exchange deposition method is simple, fast and easily reproducible under normal laboratory conditions. It is shown that anion-exchange precipitation of copper in the presence of the polysaccharide dextran-40 from copper chloride and sulphate solutions produces well crystallised hydroxychloride Cu2Cl(OH)3 and hydroxysulphate Cu4(SO4)(OH)6, respectively, and from copper nitrate a weakly crystallised Cu(OH)2 phase. In the absence of polysaccharide, copper oxide nanoparticles are formed irrespective of the nature of the anion of the parent salt. The obtained materials were used to obtain hydrosols with high aggregation and sedimentation stability over a wide pH range (from 5 to 11). These sols are stable for more than 3 months at a concentration of 2 g/l (the average hydrodynamic diameter of the particles is 245 nm; the average ζ-potential is -31.1 mV). Based on the study of the optical and electronic properties of the obtained hydrosols, it was found that they could be of interest for photocatalysis and application in optoelectronic devices.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimisation of nickel ferrite production conditions for the preparation of magnetic composite photocatalysts 优化镍铁氧体的生产条件以制备磁性复合光催化剂

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020135

D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. Pikurova, A. Samoilo

{"title":"Optimisation of nickel ferrite production conditions for the preparation of magnetic composite photocatalysts","authors":"D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. Pikurova, A. Samoilo","doi":"10.31857/s0044457x24020135","DOIUrl":"https://doi.org/10.31857/s0044457x24020135","url":null,"abstract":"Ferrites of non-ferrous metals are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have a fast electron-hole relaxation time, which reduces their activity in photoreactions. This problem is overcome by creating hybrid nanostructures based on ferrites, for example with zinc oxides. The catalytic activity of such structures depends highly on the method of their synthesis. In this work, the alkaline co-precipitation of Fe2+ and Ni2+ ions, which have similar values for hydroxides, was used to obtain stoichiometric and homogeneous nickel ferrite precursors. The influence of the reaction parameters on the purity of the nickel ferrite phase and the size of the particles was studied using the experimental design technique. Spherical nanoparticles 15.9 ± 1.1 nm in diameter were produced under the optimal conditions identified. Based on the obtained material, NiFe2O4/ZnO magnetic composites of different quantitative compositions were prepared. The photocatalytic activity of the hybrid structures was demonstrated by photodegradation of crystal violet dye.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"9 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zinc(II) complexes with thiadiazole derivatives-1,3,4 锌（II）与噻二唑衍生物-1,3,4 的配合物

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020061

K. S. Khusenov, B. B. Umarov, K. K. Turgunov, O. Z. Bakhranova, T. B. Aliev, B. Ibragimov

{"title":"Zinc(II) complexes with thiadiazole derivatives-1,3,4","authors":"K. S. Khusenov, B. B. Umarov, K. K. Turgunov, O. Z. Bakhranova, T. B. Aliev, B. Ibragimov","doi":"10.31857/s0044457x24020061","DOIUrl":"https://doi.org/10.31857/s0044457x24020061","url":null,"abstract":"Zn(II) complexes of the composition [ZnLn2X2] and [ZnLn3(NO3)2] were synthesized, where n = 1, 2; X=Cl, Br, I; L1=2-aminothiadiazole-1,3,4, L2=2-amino-5-methylthiadiazole-1,3,4. The obtained complexes were studied by elemental analysis methods, IR and 1H NMR spectroscopy. The structure of the [ZnL22Br2] complex was determined by the RSA method (CIF file CCDC No. 2251742). The ligand molecules of 2-amino-5-R-thiadiazoles-1,3,4 (R = –H, –CH3) are coordinated monodentately by an endocyclic nitrogen atom located in the α-position to the amino group. The polyhedron of the central atom of halide complexes is a slightly distorted tetrahedron, in the coordination sphere of which two halide atoms and two endocyclic nitrogen atoms are located. During complexation in the spectrum of the solution of the [ZnL22Br2] complex, coordinated L2 ligands undergo amino-imine tautomerization into a heterocyclic amine with a nitrogen atom in a heterocycle. The polyhedron of the central atom for nitrate complexes is a slightly distorted trigonal bipyramide, in the coordination sphere of which three nitrogen atoms of ligands are located in the equatorial plane and two oxygen atoms of two nitrate anions in the axial position.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 alloying of zinc sulfide in a homogeneous system based on dodecane, its identification and optical properties 基于十二烷的均相体系中硫化锌的合成和合金化及其鉴定和光学特性

Журнал неорганической химии Pub Date : 2024-07-28 DOI: 10.31857/s0044457x24020038

M. A. Zarudskikh, E. G. Ilina, A. S. Mankevich, V. P. Smagin

引用次数: 0

Синтез и физико-химические свойства бинарных боридов кобальта(II). Термическое восстановление комплексов-прекурсоров [CoL ][B 10 H 10 ] (L = H 2 二元钴硼(II)的合成和物理化学特性。前体复合体的热复原(CoL) (10 H 10) (L = H 2)

Журнал неорганической химии Pub Date : 1900-01-01 DOI: 10.1134/s0044457x19110126

Е. А. Малинина, Л. В. Гоева, Г. А. Бузанов, В. В. Авдеева, Николай Николаевич Ефимов, И. В. Козерожец, Н. Т. Кузнецов

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Синтез, структура и термические свойства сложных оксидов LnGa 0.5 Sb 1.5 O 6 СО структурой типа розиаита 复杂LnGa氧化物的合成、结构和热性能为0.5 Sb 1.5 O 6，具有roziaite型结构。

Журнал неорганической химии Pub Date : 1900-01-01 DOI: 10.1134/s0044457x19090101

А. В. Егорышева, С. В. Голодухина, А. В. Тюрин, Алексей Владимирович Хорошилов, В. О. Веселова, Р. Д. Светогоров

引用次数: 0

Стеклообразование в системе AlCl 3 –(CH 3 ) 2 SO–H 2 O AlCl 3 (CH 3) 2 SO - 2 O中的玻璃形成

Журнал неорганической химии Pub Date : 1900-01-01 DOI: 10.1134/s0044457x19100076

И. А. Кириленко, Л. И. Демина, В. П. Данилов

引用次数: 0