A5079944761- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Hybrid Renewable Energy Systems
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Particle Dynamics in Fluid Flows
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics and Turbulent Flows
- Advanced Battery Technologies Research
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Microstructure and Mechanical Properties of Steels
- MXene and MAX Phase Materials
- Fullerene Chemistry and Applications
- Carbon Nanotubes in Composites
- Advancements in Battery Materials
- Metal Alloys Wear and Properties
- TiO2 Photocatalysis and Solar Cells
- Hydrogen Storage and Materials
- Welding Techniques and Residual Stresses
- Advanced Photocatalysis Techniques
- Membrane-based Ion Separation Techniques
- CO2 Reduction Techniques and Catalysts
Kurchatov Institute
2015-2023
Moscow Power Engineering Institute
2016-2023
North-West University
2022-2023
Novosibirsk Tuberculosis Research Institute
1972-1973
The performance of an anion exchange membrane water electrolyzer under various operational conditions (including voltage, KOH-supporting electrolyte concentration, and flow rate) is studied using conventional time-domain technics electrochemical impedance spectroscopy (EIS). EIS footprint, depending on the variation in conditions, discussed, providing valuable data faradaic non-faradaic processes MEA, considering their contribution to total polarization resistance. distribution AEMWE cell...
Platinum (Pt)-based electrocatalysts supported by reduced graphene oxide (RGO) were synthesized using two different methods, namely: (i) a conventional two-step polyol process RGO as the substrate, and (ii) modified implicating simultaneous reduction of Pt nanoparticle precursor (GO). The structure, morphology, electrochemical performances obtained Pt/RGO catalysts studied compared with reference Pt/carbon black Vulcan XC-72 (C) sample. It was shown that optimized had higher utilization...
Reduced graphene oxide (RGO) and RGO modified by ozone (RGO-O) fluorine (RGO-F) were synthesized. Pt nanoparticles deposited on these materials also Vulcan XC-72 using the polyol method. The structural electrochemical properties of obtained catalysts investigated in a model glass three-electrode cell laboratory PEM fuel cell. Among RGO-based catalysts, highest electrochemically active surface area (EASA) was for oxidized supported catalyst. EASA fluorine-modified RGO-supported catalyst half...
Renewable energy sources are considered to play a key role in the future mix, with hydrogen being an important carrier as long-term storage option. Polymer electrolyte membrane (PEM) water electrolysis (WE) allows relatively quick and convenient production of pure from only electricity; thus it is one most practical ways consume renewable for green production. The efficiency splitting largely depends on intrinsic activity, selectivity, stability oxygen evolution electrocatalysts, currently...
A detailed study of the structure, morphology and electrochemical properties Pt/C Pt/x-SnO2/C catalysts synthesized using a polyol method has been provided. series supported on SnO2-modified carbon was studied by various methods including transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS), methods, fuel cell testing. The SnO2 content varies from 5 to 40 wt %. TEM images, XRD XPS analysis suggested Pt-SnO2 hetero-clusters formation. ca. 10%...
Pt/C and Pt/SnOx/C catalysts were synthesized using the polyol method. Their structure, morphology chemical composition studied a scanning electron microscope equipped with an energy dispersive X-ray spectrometer, transition photoelectron spectroscope. Electrochemical measurements based on results of rotating disk electrode (RDE) experiments applied to ethanol electrooxidation. The quick evaluation catalyst activity, electrochemical behavior, average number transferred electrons made RDE...
Low-cost anion exchange membrane (AEM) water electrolysis is a promising technology for producing “green” high-purity hydrogen using platinum group metal (PGM)-free catalysts. The performance of AEM depends on the overall overvoltage, e.g., voltage losses coming from different processes in electrolyzer including and oxygen evolution, non-faradaic charge transfer resistance, mass limitations, others. Due to relaxation times these processes, it possible unravel them frequency domain by...
Demonstration of hydrogen production on metal-free poly(3,4-ethylenedioxythiophene (PEDOT) film.
The review paper accumulates the latest information on analysis of catalyst synthesis for electrolysis water in alkaline and partially acidic media.Literature data production electro-catalysts based noble, refractory, transition pure metals, as well metals doped with molybdenum, phosphorus, other elements, are presented.Given different methods electro-catalyst, advantage electrochemical method is emphasized easy, accessible enabling to regulate composition synthesized electrodes by changing...
The Ir-based Magneli phase titanium oxide supported catalyst is synthesized using the polyol approach.Its structure and activity in oxygen evolution reaction were evaluated by means of transmission electron microscopy, cyclic linear sweep voltammetry.The characterized small Ir nanoparticles well dispersed over support surface.The suboxide showed very high OER.Its mass ca. 3 times higher comparison with commercial IrO x catalyst.
Graphene-like materials have attracted significant attention as alternative catalyst carriers due to the broad possibilities of changing their shape, composition, and properties. In this study we investigated structural electrochemical characteristics platinum electrocatalysts supported on reduced graphene oxide (rGO), including those modified with amine functionalities, nitrogen heteroatoms (rGO-Am), oxygen enriched (rGO-O). Synthesis Pt nanoparticles (20 wt.%) graphene-like nanomaterials...