Subjects -> CHEMISTRY (Total: 986 journals)
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    - CHEMISTRY (713 journals)
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    - INORGANIC CHEMISTRY (45 journals)
    - ORGANIC CHEMISTRY (47 journals)
    - PHYSICAL CHEMISTRY (71 journals)

INORGANIC CHEMISTRY (45 journals)

Showing 1 - 34 of 34 Journals sorted alphabetically
Acta Polymerica     Hybrid Journal   (Followers: 9)
Additives for Polymers     Full-text available via subscription   (Followers: 20)
Advances in Inorganic Chemistry     Full-text available via subscription   (Followers: 9)
Advances in Polymer Technology     Open Access   (Followers: 13)
Bioinorganic Chemistry and Applications     Open Access   (Followers: 5)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 1)
Communication in Inorganic Synthesis     Open Access  
European Journal of Inorganic Chemistry     Hybrid Journal   (Followers: 10)
European Polymer Journal     Hybrid Journal   (Followers: 44)
High Performance Polymers     Hybrid Journal   (Followers: 1)
Indian Journal of Chemistry - Section A     Open Access   (Followers: 9)
Inorganic and Nano-Metal Chemistry     Hybrid Journal  
Inorganic Chemistry     Hybrid Journal   (Followers: 31)
Inorganic Chemistry Communications     Hybrid Journal   (Followers: 13)
Inorganic Chemistry Frontiers     Hybrid Journal   (Followers: 4)
Inorganic Materials     Hybrid Journal   (Followers: 5)
Inorganic Materials: Applied Research     Hybrid Journal   (Followers: 1)
Inorganica Chimica Acta     Hybrid Journal   (Followers: 6)
International Journal of Bio-Inorganic Hybrid Nanomaterials     Open Access   (Followers: 2)
International Journal of Inorganic Chemistry     Open Access   (Followers: 3)
JBIC Journal of Biological Inorganic Chemistry     Hybrid Journal   (Followers: 2)
Journal of Inorganic and Organometallic Polymers and Materials     Hybrid Journal   (Followers: 8)
Journal of Inorganic Biochemistry     Hybrid Journal   (Followers: 4)
Journal of Inorganic Chemistry     Open Access   (Followers: 3)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Journal of Progressive Research in Chemistry     Open Access  
Journal of Separation Science     Hybrid Journal   (Followers: 10)
Materials Today Chemistry     Hybrid Journal   (Followers: 2)
Open Journal of Inorganic Chemistry     Open Access   (Followers: 1)
Polymer Bulletin     Hybrid Journal   (Followers: 7)
Polymer Composites     Hybrid Journal   (Followers: 18)
Russian Journal of Inorganic Chemistry     Hybrid Journal  
Separation Science plus (SSC plus)     Hybrid Journal  
Zeitschrift für anorganische und allgemeine Chemie     Hybrid Journal   (Followers: 1)
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Inorganic Materials
Journal Prestige (SJR): 0.313
Citation Impact (citeScore): 1
Number of Followers: 5  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1608-3172 - ISSN (Online) 0020-1685
Published by Springer-Verlag Homepage  [2537 journals]
  • Morphology of Supramolecular Structures Based on Sodium Silicates and
           [B10R10]2– (R = H, Cl) Boron Cluster Anions

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      Abstract: — We have studied supramolecular associates obtained by reacting sodium silicate water glass with [B10H10]2– and [B10Cl10]2– boron cluster anions. Electron microscopy results for the reaction products, in combination with thermomechanical analysis data, lead us to assume that the size, shape, and composition of the supramolecular associates in the silicate matrix depend on the nature of the anion.
      PubDate: 2021-11-01
       
  • Electric-Field-Induced Impurity Effects in p-GaSe Single Crystals

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      Abstract: — Electric-field-induced impurity photoconductivity and spontaneous dark current pulsations have been detected in nominally undoped and rare-earth (gadolinium and erbium) doped (NREE ≤ 0.1 at %) p-type gallium selenide (p-GaSe) single crystals and investigated at electric voltages ensuring injection in the crystals. The results demonstrate that both effects are directly due to changes in the charge state of trap levels in the band gap of p-GaSe by injected charge carriers, are independent of the chemical nature of the dopant, and are only determined by the doping level. In higher resistivity crystals, undoped and doped to NREE ≤ 0.01 at %, these effects are strongly influenced by random macroscopic defects as well.
      PubDate: 2021-11-01
       
  • Processes for the Preparation of High-Purity Arsenic and Its Compounds

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      Abstract: — This paper presents results of analysis of the patent, scientific, and technical literature concerned with the physicochemical and technological foundations of the preparation of high-purity arsenic-containing compounds from various raw materials. Considerable attention is paid to processing of unconventional raw materials (lewisite detoxification products, nonferrous metals industry waste, and III–V semiconductor materials fabrication waste). Arsenic-containing substances (elemental arsenic, arsenic trichloride, arsenic trioxide, and arsine) containing less than 1 ppm by weight of regulated impurities have been prepared and characterized.
      PubDate: 2021-11-01
       
  • Purity of Alkaline-Earth Metals (according to Materials in the
           Exhibition–Collection of Extrapure Substances)

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      Abstract: — In this paper, we discuss the purity level of the alkaline-earth metals (AEMs) and their compounds manufactured in Russia and abroad. We consider the impurity composition of the array of AEM samples in the Exhibition–Collection of Extrapure Substances and contributions of particular groups of impurities.
      PubDate: 2021-11-01
       
  • Structure, Texture, and Substructure of Foil in Sequential Rolling Steps
           of Cu–36.4 at % Pd Alloy

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      Abstract: — The phase composition, texture, and substructure of foil of a Cu–36.4 at % Pd solid solution have been studied by X-ray diffractometry and electron diffraction after rolling to a thickness of 320, 220, 180, 100, and 30 μm and subsequent heat treatment in vacuum to a temperature exceeding the upper temperature stability limit of an ordered structure. The results demonstrate that the general trends of changes in texture observed at all foil thicknesses during both deformation and subsequent heat treatment are controlled by ordering processes according to the Bain model and disordering processes, with allowance for the role of rolling deformation and recrystallization during subsequent heat treatment. At all foil thicknesses, heat treatment of the deformed samples leads to a decrease in the lattice parameter of the α-phase and an increase in that of the β-phase, suggesting an increase in the percentage of Pd in the β-phase and a decrease in that in the α-phase. The small change in the lattice parameter of the α-phase ensures the possibility of a complete α → β transformation.
      PubDate: 2021-11-01
       
  • Ferrite-Based Solid Solutions: Structure Types, Preparation, Properties,
           and Potential Applications

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      Abstract: — This paper presents a brief review of the state-of-the-art in the field of the preparation and characterization of the most widespread types of ferrites: ferrites with the spinel structure, hexaferrites, ferrites with the garnet structure, and orthoferrites. The present review is concerned primarily with advances in the synthesis and characterization of ferrites with various structures in the past two years (2020 and 2021). We compare available data on the feasibility of replacing trivalent Fe atoms by other atoms and discuss potential applications of ferrite solid solutions. The present results make it possible to identify promising directions of the development of this area of research and the associated current problems.
      PubDate: 2021-11-01
       
  • Electrical Properties of Beryllium-Doped Gd2Zr2O7

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      Abstract: — Dense Gd2Zr2O7-based ceramics with the composition Gd2Zr1.9Be0.1O6.9, containing heterovalently substituted beryllium on the zirconium site, have been prepared for the first time via mechanical activation of an oxide mixture, followed by annealing of green compacts at 1500°C. The use of mechanical activation has been shown to enable the preparation of dense ceramics (relative density of 88%) by annealing for 5 min and gas-tight ceramics (relative density of 97.3%) by annealing for 4 h. Gd2Zr1.9Be0.1O6.9 has a pure oxygen ion conductivity of 4.0 × 10–3 S/cm at 800°C. The main advantage of partial beryllium substitution on the zirconium site in Gd2Zr2O7 is the formation of a material having negligible electron and hole conductivities in wide ranges of oxygen partial pressures and temperatures.
      PubDate: 2021-11-01
       
  • Extraction of Pb2+ and Cd2+ Cations from Solutions by Titanium(IV)
           Phosphate-Based Ion Exchangers

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      Abstract: — This paper demonstrates the feasibility of using titanium(IV) oxyhydroxyphosphate-based materials for sorption extraction of heavy metal cations from solutions. We have determined Pb2+ and Cd2+ sorption characteristics of ion exchangers, examined the kinetics of Pb2+ and Cd2+ sorption on the titanium phosphate materials, and assessed the effect of ionic radius on the affinity of the sorption matrices for metal cations. Conditions for effective use of the ion exchange materials for extracting Pb2+ and Cd2+ cations from solutions (liquid : solid ratio and pH) have been optimized experimentally.
      PubDate: 2021-11-01
       
  • Effect of the Isotopic Composition of Fe on Its Linear Thermal Expansion
           Coefficient

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      Abstract: — The linear thermal expansion coefficients (LTECs) of isotopically natural Fe (natFe) and samples isotopically enriched in 56Fe (99.945 wt %) and 57Fe (90.954 wt %) have been determined as functions of temperature by X-ray diffraction dilatometry in the temperature range 173–433 K. The low-temperature LTEC of 57Fe has been shown to be larger. As the temperature is raised to the range 368–433 K, the difference between the LTECs of the samples differing in isotopic composition decreases.
      PubDate: 2021-11-01
       
  • Self-Propagating High-Temperature Synthesis in the Ti–Al–Si
           System

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      Abstract: — Lightweight Ti–Al–Si intermetallic alloys with the compositions (wt %) 37Ti–50Al–13Si, 74.1Ti–6.3Al–19.6Si, and 41.53Ti–16.71Al–41.76Si have been prepared for the first time by self-propagating high-temperature synthesis (SHS). Using a 74.1 wt % Ti + 6.3 wt % Al + 19.6 wt % Si mixture, we have obtained a single-phase material with the composition Ti5Al0.75Si2.25, having a compressive strength of 19 MPa, average microhardness HVμ = 10 690 MPa, porosity of 41.5%, and hydrostatic density of 2.3 g/cm3.
      PubDate: 2021-11-01
       
  • Short- and Long-Range Order in Ytterbium-Doped Zirconia

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      Abstract: — Raman spectra of zirconia doped with 10, 20, and 25% ytterbia have been measured using light sources with wavelengths of 785 and 532 nm. A number of bands have been shown to depend on the laser wavelength used, that is, they cannot be Stokes bands. Analysis of Stokes bands has made it possible to describe the structure of the samples containing 10 and 20% ytterbium as a defect pyrochlore structure, which points to changes in the local symmetry of oxygen around cations on cooling to room temperature.
      PubDate: 2021-11-01
       
  • Extrinsic Absorption by Copper(II) Ions in Molybdenum-Containing Zinc
           Tellurite Glass

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      Abstract: — Optical transmission of Cu2+-doped glass with the composition (TeO2)0.72(ZnO)0.18(MoO3)0.10 has been studied at dopant concentrations from 0.008 to 0.250 wt % and wavelengths from 0.45 to 2.80 μm. The transmission spectra of the glasses each have one strong absorption band peaking at ~819 nm. From the composition dependence of the absorption coefficient for a series of Cu2+-doped glass samples, we have calculated the specific absorption coefficient of Cu2+ ions, 4070 ± 83 dB/(km ppm) at 819 nm, and obtained its spectral dependence in the wavelength range studied.
      PubDate: 2021-11-01
       
  • Chemical Binding of Carbon Dioxide on Zinc Oxide Powders Prepared by
           Mechanical Milling

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      Abstract: — Based on X-ray photoelectron spectroscopy and X-ray diffraction data for zinc oxide powders prepared via mechanical milling in an attritor, we have identified inherent features of the chemical binding of carbon dioxide on the surface of the powders. The results thus obtained can be used in the fabrication of carbon dioxide sensors, catalysts, and photocatalysts with improved performance parameters. The powders milled for 3 h exhibit the most active interaction with atmospheric carbon dioxide and have the largest percentage of carbon chemisorbed in carbonate-like form.
      PubDate: 2021-11-01
       
  • Synthesis of Cu2 – nSe via Autowave Combustion of an Elemental
           Powder Mixture

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      Abstract: — A Cu2 – nSe phase has been prepared by self-propagating high-temperature synthesis in the combustion regime using mixtures of Cu and Se powders. We have carried out thermodynamic analysis of the formation of Cu2 – nSe from its constituent elements and calculated the adiabatic combustion temperature, which is 912 K for a mixture with the composition 2Cu + Se. Using X-ray diffraction data, we have determined the composition of the combustion product and the unit-cell parameters of the α- and β-phases of Cu2 – nSe in its homogeneity range. The phase composition of the material and the stoichiometry of Cu2 – nSe have been shown to depend on the composition of the starting mixture. Synthesis from 2Cu + Se and 1.85Cu + Se mixtures leads to predominant formation of the monoclinic phase α-Cu2 – nSe, whereas combustion of a 1.7Cu + Se mixture, having a considerable deviation from stoichiometry, yields the cubic phase β-Cu2 – nSe. The effect of isothermal annealing at 673 K on the phase composition of the material is examined.
      PubDate: 2021-11-01
       
  • Crystal Structure, Luminescence, and Thermodynamic Properties of Pb10 –
           xEux(GeO4)2 + x(VO4)4 – x (x = 0.1, 0.2, 0.3) Substituted Apatites

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      Abstract: — Pb10 – xEux(GeO4)2 + x(VO4)4 – x (x = 0.1, 0.2, 0.3) Eu-substituted lead germanatovanadates with the apatite structure have been prepared by solid-state reactions, via firing in air in the temperature range 773–1073 K, using oxides (PbO, Eu2O3, GeO2, and V2O5) as starting materials. Using X-ray diffraction, we have determined the hexagonal cell parameters (sp. gr. P63/m) of the synthesized phases and refined their crystal structure (the atomic position coordinates, isotropic thermal parameters, and principal bond lengths in their structure are presented). We have measured the luminescence spectra of the Pb10 – xEux(GeO4)2 + x(VO4)4 – x (x = 0.1, 0.2, 0.3) apatites and shown that europium concentration has little effect on the shape of the luminescence spectra. Using experimental heat capacity data obtained for polycrystalline samples by differential scanning calorimetry in the temperature range 350–1050 K, we calculated the main thermodynamic functions of the Eu-substituted lead germanatovanadates.
      PubDate: 2021-11-01
       
  • Structural Data and Luminescence Properties of Cu2 – xMnSnS4 (0 < x
           ≤ 0.10) Copper-Deficient Solid Solutions Based on the Cu2MnSnS4
           Quaternary Compound

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      Abstract: — This paper presents the first structural data for Cu2 – xMnSnS4 (0 < x ≤ 0.10) copper-deficient solid solutions based on the Cu2MnSnS4 quaternary compound. It has been shown for the first time that the band peaking at 1.26 eV in the 78-K cathodoluminescence spectrum of Cu2MnSnS4 is most likely due to CuMn and MnCu antisite defects resulting from mutual substitutions of atoms on the copper and manganese sites in the stannite structure and that the spectra of Cu2 – xMnSnS4 contain a band peaking at 1.21 eV and arising from Cu2+⋅VCu defect associates.
      PubDate: 2021-10-01
       
  • Abrasive Powder Materials with Wear-Resistant and Magnetic Components

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      Abstract: — TiC–Fe based powder materials have been prepared by a self-propagating high temperature synthesis comminution process. The type of deforming device (cone or mill cutter) has been shown to influence the particle size and shape and the fraction of smaller particles in the powders. We present results of analysis of the surface structure and phase composition of the synthesized powder materials and their particle size distributions in relation to the type of deforming device used.
      PubDate: 2021-10-01
       
  • Effect of High Gamma Doses on the Scintillation and Optical Properties of
           Bi4Ge3O12 Crystals

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      Abstract: — We have studied the influence of high gamma doses and dose rates on the light output of bismuth orthogermanate (Bi4Ge3O12) crystals. The results demonstrate that the change in the light output of the Bi4Ge3O12 crystals at high gamma doses is due to the formation of color and trapping centers, which lead to degradation of the spectroscopic properties of the crystals.
      PubDate: 2021-10-01
       
  • Synthesis and Ionic Conductivity of Lithium Titanium Phosphate-Based Solid
           Electrolytes

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      Abstract: — The processes occurring during the solid-state synthesis of germanium-doped lithium titanium phosphate have been studied. The formation of LiTi2 – xGex(PO4)3 has been shown to proceed through the titanium pyrophosphate formation followed by its transformation into materials with the NASICON structure. The process is completed at 1073 K. To produce ceramics with an optimal conductivity, annealing at 1173 K is required. Based on the results obtained, a two-stage synthesis procedure was developed. The highest ionic conductivity (3.9 × 10–5 Ohm–1 cm–1 at 433 K) and the lowest activation energy (46 ± 1 kJ/mol) were observed for LiTi2 – xGex(PO4)3 materials with a titanium substitution degree of 20–25% (x = 0.4–0.5). It can be attributed to an optimal size of lithium transport channels.
      PubDate: 2021-10-01
       
  • Synthesis and Photoluminescence of Fluorinated Yttria–Alumina
           Composites

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      Abstract: — Composites have been prepared via thermal decomposition of gel-like mixtures containing yttrium, aluminum, and europium(III) salts and ethyl acetate as a basic component. Luminescence of the composites is due to Eu3+ 5D0,1 → 7Fj electronic transitions. The luminescence is excited in intrinsic absorption bands of the Eu3+ ions and as a result of resonance vibrational energy transfer from the host to their excited state levels and transitions of O2– 2p electrons to the europium 4f orbital. The luminescence and luminescence excitation spectra demonstrate changes in the peak position of individual bands, redistribution of their intensity, and changes in their Stark structure. The observed changes are related to the different fractions of fluorine atoms in the composition of activator centers, their concentration, and the Y3+ : Al3+ atomic ratio in the synthesis products, obtained at a temperature of 800°C and synthesis times from 4 to 12 h and differing in phase composition and structure.
      PubDate: 2021-10-01
       
 
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