Eduard E. Levin

Eduard E. Levin
Lomonosov Moscow State University | MSU · Department of Electro-Сhemistry

About

53
Publications
10,571
Reads
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504
Citations
Citations since 2017
35 Research Items
449 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Additional affiliations
February 2004 - present
Lomonosov Moscow State University
Position
  • Researcher

Publications

Publications (53)
Article
Full-text available
General model for the description of electrochemical behavior of lithium ion intercalating materials is formulated on the basis of fundamental physicochemical principles. Kinetic and transport parameters for selected well-known electrode materials (LiMn2O4 and LiCoO2) are evaluated from numerical modeling and fitting of cyclic voltammetry responses...
Article
Full-text available
The conventional zero-background holder technique has been adapted for handling small bulk samples by adding one-axis mobility to a single-crystal wafer using a Newport optical stage. Experiments showed that an a -plane (11{\overline 2}0) sapphire crystal with a surface-to-crystal-plane angle of ∼3° can be used as a zero-background holder. Such a c...
Article
Full-text available
Intermetallic compounds capable of absorbing large amounts of hydrogen attract attention due to their applied significance in the production of chemical power sources. A variety of such compounds have been studied. The present paper gives some examples of hydrogen-absorbing intermetallides and describes their preparation, as well as touches upon so...
Article
Full-text available
Perovskite-type lanthanum iron oxide, LaFeO3, is a promising photocathode material that can achieve water splitting under visible light. However, the performance of this photoelectrode material is limited by significant electron-hole recombination. In this work, we explore different strategies to optimize the activity of a nanostructured porous LaF...
Article
Full-text available
Arrays of superconducting nanowires may be useful as elements of novel nanoelectronic devices. The superconducting properties of nanowires differ significantly from the properties of bulk structures. For instance, different vortex configurations of the magnetic field have previously been predicted for nanowires with different diameters. In the pres...
Article
An important scientific task is the search for inexpensive and environmentally friendly methods for the production of chitosan oligomers. In the present work, the possibility of chitosan decomposition in the presence of peroxycarbonic acid solutions under high CO2 pressure was investigated. This medium contains self‐neutralizing carbonic acid used...
Article
The superior rate capabilities of metal ion battery materials based on Prussian blue analogues (PBAs) are almost exclusively ascribed to the extremely fast solid-state ionic diffusion, which is possible due to structural voids and spacious three-dimensional channels in PBA structures. We performed a detailed electroanalytical study of alkali ion di...
Article
We report cathodic deposition of birnessite oxide from permanganate alkaline solutions into porous flexible cloth consisting from carbon nanotubes. Oxide distribution in the pores is studied by means of electron microscopy, including transmission microscopy of microtom cross-sections and local elemental analysis. Oxide distribution depends on appli...
Article
The recently demonstrated possibility of high-voltage extraction of more than 2 Na ions per Na4MnV(PO4)3 formula unit is considered as a possible way to increase the specific energy of this material, which would open up prospects for its application in sodium-ion batteries. However, for the Na4MnV(PO4)3 material and for a wide group of related NASI...
Article
Full-text available
We applied the small angle nuclear scattering of synchrotron radiation (SANRS) to investigate anisotropic Galfenol-polyurethane composite comprising Galfenol grains with Fe57 nuclei arranged in the parallel chains surrounded by the non-resonant polymer substance. We aimed to insight into the individual magnetic structure of the particles and partic...
Article
Our study of FeSe$ _ {1-x}$Te$ _ {x}$ crystals with x $<$ 0.15 shows that the phase separation in these compositions occurs into phases with a different stoichiometry of iron. This phase separation may indicate structural instability of the iron plane in the studied range of compositions. We tentatively propose an explanation of the structural inst...
Article
Prussian Blue analogs (PBA) are commonly believed to reversibly insert divalent ions, such as calcium and magnesium, rendering them as perspective cathode materials for aqueous magnesium‐ion batteries. In this work, we show that Mg 2+ insertion into nanosized PBA materials is a misconception and provide conclusive evidence for the unfeasibility of...
Article
The functionalization of the bacterial cellulose (BC) surface with a chitosan biopolymer to expand the areas of possible applications of the modified BC is an important scientific task. The creation of such composites in the carbonic acid solutions that were performed in this work has several advantages in terms of being biocompatible and eco-frien...
Article
Full-text available
The aim of the current study was to investigate the growth mechanisms of the silver nanoparticles (Ag NPs) in chitosan macrogels and microgels acting both as reductants and stabilizing agents in self-neutralizing, biocompatible, and environmentally benign carbonic acid solutions. The chitosan-hydroquinone microgels loaded with Ag NPs incorporated i...
Article
The data for birnessite deposited from alkaline permanganate solutions under two- and single step potentiostatic modes are reported. The analysis of capacity vs. scan rate dependences confirmed higher contribution of interfacial recharging to capacity of the compact nanoporous deposits as compared to more resistive ramified deposits with morphology...
Article
Electrochemical aspects of Bi electrocrystallization from a bath containing bismuth nitrate in a mixture of ethylene glycol and water are addressed. Bismuth nanowires with diameters of 50 – 120 nm and a length up to a few dozens of microns were prepared by electrodeposition into the pores of anodic aluminium oxide templates. Crystal structure and m...
Article
Various manganese oxides are considered as rather active ORR catalysts and/or supercapacitor materials for operation in alkaline medium. However all these oxides are thermodynamically unstable at high pH and undergo more or less slow transformations to non-stoichiometric oxides containing alkali metal cations M (MxMnO2*nH2O, known also as birnessit...
Article
The electrochemical insertion patterns of potassium‐rich Prussian blue materials with different compositions and particle sizes were systematically compared which allows deducing correlations on the influence of particle morphology and material structure on the potassium‐ion insertion mechanisms in aqueous solutions. While the structural analysis i...
Article
Anodic aluminum oxide (AAO) films with uniform cylindrical pores are widely used as templates and membranes. The annealing of initially amorphous AAO enhances its chemical stability, but simultaneously changes its morphology and phase composition. Here we study the effect of annealing in the temperature range up to 1150 °C on structural and phase t...
Article
We present an investigation of the superconducting properties of thin YBa 2 Cu 3 O 7-x (YBCO) films grown on [001] single-crystalline quartz substrates by pulsed laser deposition (PLD) technique. The growth of YBCO on quartz is challenging due to large crystal lattice mismatch between YBCO and quartz. We obtained highly c-oriented textured films wi...
Article
Full-text available
Electrochemically active nanocrystalline tungsten oxide was synthesized in supercritical carbon dioxide from tungsten hexacarbonyl at 150 °C and 400 bar in the presence of oxygen (partial pressure of 15 bar). The supercritical fluid is a solvent for the precursor (i.e., this is a sc solvothermal synthesis route), whereas the admixed gaseous oxygen...
Article
Full-text available
In the present work, a promising method was proposed for purification of fragments of animal bone tissue from high-molecular weight compounds in bi-phase media containing high-pressure CO2 for the first time, namely, in solutions of carbonic and peroxycarbonic acids. The effectiveness of this purification was confirmed by SEM and IR spectroscopy. I...
Article
A promising method was proposed for the first time for purification of animal bone tissue fragments from high-molecular weight compounds in biphase media containing high-pressure CO2 (solutions of carbonic and peroxycarbonic acids). The efficiency of this purification was confirmed by SEM and IR spectroscopy. It turned out that, during the exposure...
Article
In this paper we implement and test a new approach for the description of the electrochemical data (cyclic voltammetry and chronoamperometry) for phase transforming intercalation electrode materials. This approach assumes the rate-limiting step being associated with the slow nucleation of a new phase in the material particles. As a test model syste...
Article
Galfenol magnetostrictive particles have been mechanochemically synthesized and used as functional component of polyurethane-based composite to achieve magnetoactive elastic response. Synchrotron Mossbauer study was performed on energetic and time scale to reveal local and magnetic structure behavior responsible for the promising composite function...
Article
Full-text available
Mechanochemical interaction of Fe powder with the liquid Ga–In eutectic in the Fe-rich concentration corner of the Fe–Ga–In phase diagram was studied and compared with binary Fe–Ga and Fe–In specimens. Slow formation of diluted solid solutions in the Fe–In system was confirmed. In the Fe–Ga system, the dominant concentrated A2 solid solution is for...
Article
Full-text available
In this work, a novel method of preparing manganese oxide nanoparticles from an organometallic precursor dissolved in supercritical carbon dioxide (sc CO2) was presented. Using the new approach, nanomaterials mostly consisting of manganese oxides in β-MnO2 and ε-MnO2 phases with small-sized (~ 40 nm) grains and low polydispersity index (~ 0.12) can...
Article
We present the data on the oxygen reduction (ORR) and oxygen evolution (OER) in an alkaline solution for manganese oxide electrocatalysts fabricated by means of cathodic electrocrystallization. The catalysts are deposited from a permanganate alkaline bath, and later operate in the same 1 M NaOH medium. The effect of the deposition potential is addr...
Article
Full-text available
Disperse catalytic compositions for water electrolysis in electrolyzers with a solid polymer electro-lyte were obtained by magnetron sputtering of C–Pt and Mo–Ir sectional targets. The catalysts were studied by X-ray diffraction analysis, electron microscopy, and voltammetry. The synthesized Pt–С and Ir–Mo catalysts with lowered contents of the pre...
Article
Solvent effect on the kinetics of lithium ion intercalation into LiCoO2 cathode material is addressed by contrasting the reaction in aqueous and carbonate-based electrolytes. Combination of cyclic voltammetry, potentiostatic intermittent titration and electrochemical impedance spectroscopy electroanalytical methods allowed for an accurate determina...
Article
In spite of the great number of commercialized lithium-ion intercalating systems, the intrinsic ion-transfer kinetics of the intercalation reaction is still poorly understood. The process of Li-ion intercalation comprises several stages: i) diffusion of Li ion in solution; ii) partial or complete desolvation of Li ⁺ at the interface; iii) diffusion...
Conference Paper
Full-text available
The effect of high pressure torsion (HPT) on the microstructure evolution of Cu-Fe 36% wt alloy has been studied. The initial Cu-Fe alloy has a dendritic structure, the length of dendrites is up to 100 µm. As a result of HPT (20 anvil rotations at 400 ºC) the refinement of a-Fe dendrites occurs, and a microstructure with Fe inclusions with a size f...
Conference Paper
Full-text available
The object of the present study is the CuFe alloy. The interest to this alloy was dictated by its application as anodes for aluminum producing [1]. The effective way to increase the properties of these anodes, such as thermal stability and corrosion resistance, is to make changes in the structure. It is known that a perspective way to improve prope...
Article
Full-text available
Disorder in conjugated polymers is a general drawback that limits their use in organic electronics. We show that an archetypical conjugated polymer, MEH-PPV, enhances its local structural and electronic order upon addition of an electronic acceptor, trinitrofluorenone (TNF). First, acceptor addition in MEH-PPV results in a highly structured XRD pat...
Article
Full-text available
Cathodic electrodeposition of oxides on platinum from MoO3–K2MoO4 (3.85–75 mol% MoO3) under DC and pulsed galvanostatic modes is discussed in combination with voltammetry data. Characteristic potential values (as related to oxygen evolution onset) are reported for Mo(VI/IV) redox processes, as well as for electrochemical equilibria with participati...
Article
Full-text available
The growth of the high-temperature superconductors (HTSCs) on flexible films for the fabrication of nanoelectronic devices is considered. A method for the creation of the HTSC films on the nickeltungsten substrates is proposed. The deposition of the CeO2 and YBCO epitaxial films that are grown on short substrates made of flexible nickel-tungsten ri...
Article
Full-text available
Pt/carbon black samples fabricated from dimethyl (1,5-cyclooctadiene) platinum(II) in supercritical CO2 are characterized in relation to possible applications in methanol fuel cell. The problem of precise material characterization is addressed in frames of X-ray diffractometry, transmission electron microscopy, and electrochemical techniques of the...
Article
Full-text available
α-Fe2O3-Fe mixtures of different compositions ground in high energy ball mill were studied. The formation of amorphous iron-based magnetic phase was detected by means of Mössbauer spectroscopy and magnetic measurements. The amount of this phase increases with Fe/α-Fe2O3 ratio in starting mixtures increase. Its thermal stability was studied by means...
Article
Full-text available
Intermetallic compounds (IMC) La2Ni7, La2Ni6Co, Ce2Ni5Co2 and Ce2Ni3.5Co3.5 were obtained by arc-melting technique followed by annealing. Samples were characterized by means of X-ray powder diffraction (XRD) and X-ray Fluorescence Analysis (XRFA). Crystal structure of La2Ni7 was refined using single crystal X-ray diffraction data. Satisfactory agre...
Conference Paper
Full-text available
Intermetallic compounds (IMCs) La2Ni7 and La2Ni6Co were obtained by arc melting technique followed by annealing. Samples were characterized by means of X-ray powder diffraction (XRD). Crystal structure of 􀄮-La2Ni7 was refined using single crystal X-ray data. Hydrogen desorption isotherms were obtained for La2Ni7 and La2Ni6Co at T=273K and T=295K. E...

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Project (1)
Project
Exploring mechanisms of ion transfer and ion intercalation reactions.