A5065219538- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Electrochemical sensors and biosensors
- Conducting polymers and applications
- Spectroscopy and Quantum Chemical Studies
- Nanofluid Flow and Heat Transfer
- Surface and Thin Film Phenomena
- Advanced Chemical Physics Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Ionic liquids properties and applications
- Advanced Battery Materials and Technologies
- Advanced Chemical Sensor Technologies
- Molecular Junctions and Nanostructures
- Electron and X-Ray Spectroscopy Techniques
- Analytical Chemistry and Sensors
- Solid-state spectroscopy and crystallography
- Porphyrin and Phthalocyanine Chemistry
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Micro and Nano Robotics
- Extraction and Separation Processes
- Pickering emulsions and particle stabilization
Lomonosov Moscow State University
2021-2023
University of Massachusetts Amherst
2022-2023
University of Massachusetts Boston
2023
Moscow State University
2023
Skolkovo Foundation
2021
D. Mendeleyev University of Chemical Technology of Russia
2016-2017
Boston University
2013-2016
Kent State University
2004-2010
Case Western Reserve University
1995-2010
Argonne National Laboratory
2003-2007
This article reports on the International Nanofluid Property Benchmark Exercise, or INPBE, in which thermal conductivity of identical samples colloidally stable dispersions nanoparticles “nanofluids,” was measured by over 30 organizations worldwide, using a variety experimental approaches, including transient hot wire method, steady-state methods, and optical methods. The nanofluids tested exercise were comprised aqueous nonaqueous basefluids, metal oxide particles, near-spherical elongated...
In recent years many experimentalists have reported an anomalously enhanced thermal conductivity in liquid suspensions of nanoparticles. Despite the importance this effect for heat transfer applications, no agreement has emerged about mechanism phenomenon, or even experimentally observed magnitude enhancement. To address these issues, paper presents a combined experimental and theoretical study conduction particle agglomeration nanofluids. On side, nanofluids alumina particles water ethylene...
We present a quantitative bibliometric study of flow battery technology from the first zinc-bromine cells in 1870’s to megawatt vanadium RFB installations 2020’s. emphasize, that cost advantage RFBs multi-hour charge-discharge cycles is compromised by an inferior energy efficiency these systems, and there are limits on improvement due internal cross-over power (at low current densities) acceptable pressure drop high densities). Differences between lithium-ion redox batteries (VRFBs)...
We show that granular media, consisting of metallic microparticles immersed in a poorly conducting liquid strong dc electric field, self-assemble into rich variety novel phases. These phases include static precipitates: honeycombs and Wigner crystals; dynamic condensates: toroidal vortices pulsating rings. The observed structures are explained by the interplay between charged gas electrohydrodynamic convective flows liquid.
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....
Presented herein is the experimental observation of long-range ordered structure on Pt(111) in aqueous electrolytes by situ surface X-ray scattering. The results confirmed presence two mirrored domains suggested earlier basis scanning tunneling microscopy and infrared measurements. Based weak intensity second order adlattice reflections obtained other techniques, a further refinement with tilted CO molecules proposed. hystereses observed transitions between phases, as well adsorption...
Impurity effects associated with an increase in the rate of mass transport induced by a decrease size electrodes have been examined emphasis on species capable undergoing irreversible adsorption. Calculations show that for hemispherical ultramicroelectrodes radius, flux solution-phase contaminant, such as small organic molecule, present at ppb levels, is large enough to reach saturation coverage over times order seconds. In case dioxygen reduction Pt aqueous electrolytes, adsorbed are...
We carried out experimental studies of the self-assembly metallic micron-size particles in poorly conducting liquid subject to a constant electric field. Depending on conditions, self-assemble into long chains directed along field lines and form vortices other structures. The perform Brownian-type random motion due self-induced chaotic hydrodynamic flows. measured diffusivity conductivity mechanical stiffness chains.
Presented herein is an approach to fabrication of Pt coatings on non-noble metals with (sub)monolayer thickness. The were prepared using atomic layer deposition (ALD) in which Ni-disk substrate exposed and alternating cycles. structure electrocatalytic activity the characterized elemental analysis various electrochemical techniques. We found that ALD results micrometer-size islands up ca 3.7 monolayers loading continues more uniformly at higher loadings. islandlike growth low loadings...
The transient response of a series RC equivalent circuit to staircase potential perturbation, where R represents the resistance due electrolyte and C voltage dependent interfacial capacitance, has been examined theoretically using, as model system, capacitance data believed be characteristic interface. Solutions governing algebraic differential equation were obtained by numerical techniques, which then used generate current versus curves assuming various sampling protocols. In general,...
Adding solid electroactive materials as energy boosters to flow battery tanks provides a path electrical storing systems with unprecedently high specific and power, that can solve the needs of both automotive stationary storage markets. This work reviews physical chemical principles behind this new class batteries, history technology, most promising research directions.
We report structure studies of high-density CO monolayers on Pt(111) surfaces in equilibrium with gaseous near atmospheric pressure, using surface x-ray scattering (SXS) and scanning tunneling microscopy (STM). were able to stabilize extremely well-ordered by emersion transfer from an electrochemical cell. found the hexagonal close-packed $(2\ifmmode\times\else\texttimes\fi{}2)\text{\ensuremath{-}}3\mathrm{C}\mathrm{O}$ at room temperature...