A5042795082- Inorganic Fluorides and Related Compounds
- Methane Hydrates and Related Phenomena
- Solid-state spectroscopy and crystallography
- X-ray Diffraction in Crystallography
- Geological Studies and Exploration
- Crystallization and Solubility Studies
- Chemical Synthesis and Characterization
- Crystallography and Radiation Phenomena
- Nuclear materials and radiation effects
- Radioactive element chemistry and processing
- Astronomical Observations and Instrumentation
- Organometallic Compounds Synthesis and Characterization
- Luminescence Properties of Advanced Materials
- Geophysics and Gravity Measurements
- Atmospheric and Environmental Gas Dynamics
- Advancements in Battery Materials
- Metal complexes synthesis and properties
- Inorganic Chemistry and Materials
- Climate change and permafrost
- Nuclear Materials and Properties
- Material Properties and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Lanthanide and Transition Metal Complexes
- Arctic and Antarctic ice dynamics
- Advanced X-ray Imaging Techniques
Federal Medical-Biological Agency
2023-2024
Far Eastern Branch of the Russian Academy of Sciences
1968-2024
Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences
2013-2022
Far Eastern Federal University
2013-2022
Russian Academy of Sciences
2011-2020
V.I. Il'ichev Pacific Oceanological Institute
2019
A. N. Nesmeyanov Institute of Organoelement Compounds
2019
Institute of General and Inorganic Chemistry
2019
Advisory Board Company (United States)
2019
Forestry Research Institute
2017
Sustained release of methane (CH(4)) to the atmosphere from thawing Arctic permafrost may be a positive and significant feedback climate warming. Atmospheric venting CH(4) East Siberian Shelf (ESAS) was recently reported on par with flux tundra; however, future scale these releases remains unclear. Here, based results our latest observations, we show that emissions this shelf are likely determined by state subsea degradation. We observed two previously understudied areas ESAS: outer shelf,...
Abstract The rates of subsea permafrost degradation and occurrence gas-migration pathways are key factors controlling the East Siberian Arctic Shelf (ESAS) methane (CH 4 ) emissions, yet these still require assessment. It is thought that after inundation, permafrost-degradation would decrease over time submerged thaw-lake taliks freeze; therefore, no CH release occur for millennia. Here we present results first comprehensive scientific re-drilling to show in near-shore zone ESAS has a...
The electrochemical behaviour of biodegradable magnesium alloy Mg-0.8Ca was evaluated in a mammalian cell culture medium (MEM) and NaCl solutions (0.9 wt.%, 0.3 wt.%) using traditional (EIS, PDP, OCP) local scanning (SVET, SIET with pH-selective microelectrode) methods at the micro- meso-level. Corrosion rates samples two different media were determined weight loss tests. influence testing components, composition microstructure on material's degradation process determined. SVET/SIET test...
This review paper summarizes current understanding of the transport organic carbon to, and fate within, East Siberian Arctic Shelf (ESAS), processes determining dioxide (CO2) methane (CH4) fluxes from ESAS to atmosphere achieved analyzing data sets obtained on 20 expeditions performed 1999 2011. study was aimed at investigating how redistribution old degrading terrestrial sub-sea permafrost coastal erosion contributes pool ESAS, changes in hydrological cycle surrounding land alteration...
Abstract. The Arctic Ocean, especially the East Siberian Shelf (ESAS), has been proposed as a significant source of methane that might play an increasingly important role in future. However, underlying processes formation, removal and transport associated with such emissions are to date strongly debated. CH4 concentration triple isotope composition were analyzed on gas extracted from sediment water sampled at numerous locations shallow ESAS 2007 2013. We find high concentrations (up 500 µM)...
In the present study, an original spark plasma sintering-reactive synthesis (SPS-RS) method for mineral-like ceramic materials based on SrAl2Si2O8 feldspar-like skeleton structure was used first time, promising solid-state matrices reliable immobilization of high-energy 90Sr. The is "in-situ" reaction a mixture SrO, Al2O3 and SiO2 oxides when heated by unipolar pulsed current under compacting pressure. phase elemental composition were studied. dynamics consolidation studied in range 900–1200...
Nickel- and zinc-doped TiO2(B) nanobelts were synthesized using a hydrothermal technique. It was found that the incorporation of 5 at.% Ni into bronze TiO2 expanded unit cell by 4%. Furthermore, dopant induced 3d energy levels within band structure oxygen defects, narrowing gap from 3.28 eV (undoped) to 2.70 eV. Oppositely, Zn entered restrictedly TiO2(B), but nonetheless, improves its electronic properties (Eg is narrowed 3.21 eV). The conductivity nickel- (2.24 × 10-8 S·cm-1)...
Hafnium-doped titania (Hf/Ti = 0.01; 0.03; 0.05) had been facilely synthesized via a template sol-gel method on carbon fibre. Physico-chemical properties of the as-synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive analysis, transmission photoelectron thermogravimetry analysis and Brunauer-Emmett-Teller measurements. It was confirmed that Hf4+ substitute in Ti4+ sites, forming Ti1-x Hf x O2 (x solid solutions...
Herein, we report a study of the electronic structure ground and first excited states Rb2TeCl6, Rb2TeBr6, Rb2TeI6 halide-perovskite-derived crystals. Using X-ray photoelectron spectroscopy (XPS) measurements density functional theory multiconfiguration self-consistent field (MCSCF) calculations, experimental theoretical XPS spectra valence region were obtained. In addition, effects cations halogen atoms on determined, classification in double point group representation was carried out....