A5009882691- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Electrochemical Analysis and Applications
- Advanced Battery Technologies Research
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Corrosion Behavior and Inhibition
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Polyoxometalates: Synthesis and Applications
- Catalytic Processes in Materials Science
- Conducting polymers and applications
- Atmospheric chemistry and aerosols
- Advanced Battery Materials and Technologies
- Surface Modification and Superhydrophobicity
- Advancements in Solid Oxide Fuel Cells
- Molecular Junctions and Nanostructures
- Odor and Emission Control Technologies
- Anodic Oxide Films and Nanostructures
- Organometallic Complex Synthesis and Catalysis
- Mass Spectrometry Techniques and Applications
- Advanced oxidation water treatment
- Copper-based nanomaterials and applications
- Catalysis and Oxidation Reactions
Frumkin Institute of Physical Chemistry and Electrochemistry
2015-2024
D. Mendeleyev University of Chemical Technology of Russia
2017-2021
Hebrew University of Jerusalem
1999-2018
Russian Academy of Sciences
2007-2015
Centre National de la Recherche Scientifique
2003
We report a new efficient method for fabricating superhydrophobic oxidized surface of aluminum alloys with enhanced resistance to pitting corrosion in sodium chloride solutions. The developed coatings are considered very prospective materials the automotive industry, shipbuilding, aviation, construction, and medicine. is based on nanosecond laser treatment followed by chemisorption hydrophobic agent achieve state alloy surface. have shown that texturing used fabricate multimodal roughness...
The subject of sol−gel electrochemistry is introduced, starting with a brief account milestones in its evolution. Then, the types materials that are useful for presented, followed by description recent advances various fields electrochemistry. Modified electrodes, solid electrolytes, electrochromic devices, and corrosion protection coatings described. Emerging such as RuO2 supercapacitors electrochemical synthesis precursors also addressed.
In recent years, the key principles of electric power industry have radically changed and number studies on development devices for electrical energy storage in a different form such as mechanical or chemical has rapidly increased. This review gives brief description these devices. The attention is focused redox flow batteries (RFBs), promising type capable efficiently operating distributed grids, order to eliminate imbalance between time-varying electricity production by ‘unconventional...
Electronic transport in gold−dithiol nanoparticle films was studied using conductivity, photoconductivity, and photoelectrochemical means. The were characterized by SEM optical spectroscopy. GC/MS used for the analysis of pyrolysis products during heat treatment. Films assembled on glass substrates gold sol different alkanethiol spacers (1,2-ethanedithiol (C2), 1,5-pentanedithiol (C5), 1,8-octanedithiol (C8)). Resistance−temperature measurements revealed that effective activation energies...
We present the first observations on occurrence of inorganic polysulfides in an oxygen rich aquatic system. Inorganic were found both hypolimnion and epilimnion a freshwater lakeLake Kinneret. The presence these compounds oxic systems resolves enigma concerning mechanism formation dimethyl disulfide, dimethyltrisulfide, dimethyltetrasulfide marine water. abundance low molecular weight organic relative to priori postulated dominance pentasulfide family is explained by level oxygen-rich...
Recombinant fluorescent E. coli cells were encapsulated in sol−gel derived silicate films. Green and red proteins expression by recombinant strains within the film studied. The effect of preparation protocol on viability their ability to express response genotoxicity stress evaluated. Confocal microscopy studies revealed a homogeneous distribution film. We further showed confocal that do not divide Further, dynamic green protein single cell carried out for first time. No contamination...
Abstract A concept of high energy density (ED) hydrogen–bromate flow battery was supported by experiments with cells 0.1 to 50 cm 2 apparent areas. H /NaBrO 3 gas diffusion anode, proton exchange membrane (PEM), and carbonaceous flow‐by or flow‐through cathodes were employed. Estimates show that the theoretical ED /bromate (HBFB) exceeds /O fuel (FC) in air‐deficient environments. At cathode HBFB, aqueous, concentrated bromate (non‐toxic, stable) is reduced bromide a six‐electron process....
A new class of floating composite photocatalysts for water purification is introduced. The material comprised exfoliated graphite support, titania photocatalyst, and sol−gel-derived methyl silicate binder. catalyst composition was optimized the degradation rhodamine B dye. photodegradation performance compared with supported film P-25 suspension chlorophenoxyacetic acids. coated between 50% 95% activity photocatalyst film.
This article reports on the impact of catalyst layer (CL) binder performance fuel cell (FC) with -doped polybenzimidazole membrane. Nafion and fluorinated ethylenepropylene (FEP) were used as binders for carbon-supported platinum catalyst. FC declined increase concentration in CL. was found to be more detrimental than FEP. Changes electrochemically active surface area (ESA) cathode evaluated by monitoring ESA carbon support. CL cyclic voltammetry electrochemical impedance spectroscopy....
Abstract Probing electrochemical processes by mass spectrometry (EC/MS) is a developing field that benefits from the unmatched identification power of and rapid transfer cell products to spectrometer. Most current EC/MS efforts are directed towards development differential (DEMS) using electro‐ionization source for volatile compounds, application electrospray spectrometers determination semivolatile nonvolatile products. The challenges in coupling electrochemistry described, different...
A new class of floating photocatalyst that can be used for recovery copper from aqueous solutions is reported. The comprised a dispersion titania nanocrystals in exfoliated graphite using organically modified silicate (Ormosil) as binder. composite materials were prepared by two-step acid-catalyzed sol−gel preparation protocol. efficiency under UV irradiation compared the catalysts, nanocrystalline suspension, and films. catalyst could prolonged duration, showed good regeneration capability...