A5007211930- Inorganic Fluorides and Related Compounds
- Solid-state spectroscopy and crystallography
- Crystal Structures and Properties
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Adsorption and biosorption for pollutant removal
- Food Industry and Aquatic Biology
- Advanced NMR Techniques and Applications
- Seed and Plant Biochemistry
- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Chemical Synthesis and Characterization
- Inorganic Chemistry and Materials
- Microbial Metabolites in Food Biotechnology
- Silicon Effects in Agriculture
- Organometallic Compounds Synthesis and Characterization
- Adsorption, diffusion, and thermodynamic properties of materials
- Fluorine in Organic Chemistry
- NMR spectroscopy and applications
- Crystallography and Radiation Phenomena
- Chemical Thermodynamics and Molecular Structure
- Nuclear materials and radiation effects
- Magnetism in coordination complexes
- Lignin and Wood Chemistry
- Coal and Coke Industries Research
Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences
2014-2024
Far Eastern Federal University
1998-2020
Far Eastern Branch of the Russian Academy of Sciences
2013-2020
Russian Academy of Sciences
2007-2018
A. N. Nesmeyanov Institute of Organoelement Compounds
2010
Far East Geological Institute
2008
Primorskaya State Academy of Agriculture
2004
Institute of Bioorganic Chemistry
2004
Contents of silica and extractive substances in rice straw depending on varieties were investigated. The samples amorphous prepared, their microelement composition morphology investigated, the values true bulk density estimated. porous structure was studied by Brunauer-Emmett-Teller (BET) method water vapour sorption; specific surface values, as well pore diameter volume, also determined. Sorption properties SiO2 analyzed a sample Mn2+-ions organic dyes brilliant green methylene blue.
The Bi2O3/Bi2SiO5 heterostructures were obtained with various samples of silica as a precursor: on the basis biogenic isolated from rice husk and straw mineral origin. A mixture Bi(NO3)3 SiO2 mass content 15% was used for synthesizing all samples. Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscope (SEM), X-ray phase, fluorescence, ultraviolet-visible diffused reflectance spectroscopy (UV-vis DRS) to systematically characterize as-obtained materials....
Abstract The dynamics of the (NH 4 ) 2 SbF 5 crystal lattice showing superionic phase transition is studied in a broad temperature interval by NMR and NQR methods, together with electrophysical calorimetrical properties. investigations establish ionic state axial fluorine atom relation to equatorial atoms [SbF ] 2− complex. successive transitions are revealed mechanism elucidated. caused reorientation movements NH groups. paper also describes influence water solution inclusions on transition.
NQR, specific heat, and X-ray powder analysis as well dielectric electric measurements reveal structural phase transitions in potassium tetrafluoro-antimonate (III), KSbF4, at T1 = 190 T2 483 K. A discussion is given of the anomalies physical properties vicinity transitions. The high-temperature transition a polymorphic irreversible α — β KSbF4 into highly conductive state. Es werden die strukturellen Phasenubergange bei den Temperaturen und K mit Hilfe von kalorimetrischen,...
The possibility of the use Klason lignin extracted from sunflower husks as a cathode-active material for primary lithium battery has been demonstrated first time. chemical composition, morphological and physical features were characterized by X-ray energy dispersive spectroscopy, impedance scanning electron microscopy, infrared spectroscopy. Electrochemical behavior vs. Li/Li+ was studied galvanostatic discharge cyclic voltammetry. reaction mechanism in electrochemical system discussed....
Abstract In the present study, sol-gel technique helped to obtain Fe-containing samples with a base of amorphous silicon dioxide from rice husks RH-Fe and RH-Fe-300. These materials are characterized by IR spectroscopy, X-ray phase spectral analysis. It was shown that contain silicate structures Si-O-Si(Fe) in an state. Structure surface layers RH-Fe-300 catalyst particles established for first time using photoelectron spectroscopy (XPS) energy-dispersive spectra (EDX) methods. synthesized...