A5082282966- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Electrochemical Analysis and Applications
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Analytical Chemistry and Sensors
- Advanced battery technologies research
- Electrochemical sensors and biosensors
- Extraction and Separation Processes
- MXene and MAX Phase Materials
- Organic Electronics and Photovoltaics
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Membrane-based Ion Separation Techniques
- Semiconductor materials and interfaces
- Inorganic Chemistry and Materials
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Chemical Synthesis and Characterization
- Acoustic Wave Resonator Technologies
- Electrocatalysts for Energy Conversion
- Advanced Memory and Neural Computing
- Electrodeposition and Electroless Coatings
- Ammonia Synthesis and Nitrogen Reduction
Bar-Ilan University
2015-2024
Alzheimer's Association of Israel
2015-2019
CeNTech
2019
Israel Defense Forces Medical Corps
2018
CEA Grenoble
1994-2010
Structure et Propriétés d'Architectures Moléculaires
2010
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
1994-2010
Institut Nanosciences et Cryogénie
2010
Centre National de la Recherche Scientifique
2000-2010
Max Planck Institute for Solid State Research
2010
The electroanalytical behavior of thin electrodes is elucidated by the simultaneous application three techniques: slow‐scan‐rate cyclic voltammetry (SSCV), potentiostatic intermittent titration technique, and electrochemical impedance spectroscopy. data were treated within framework a simple model expressed Frumkin‐type sorption isotherm. experimental SSCV curves well described an equation combining such isotherm with Butler‐Volmer for slow interfacial Li‐ion transfer. apparent attraction...
Slow scan rate cyclic voltammetry (CV) and highly resolved (with respect to potential) electrochemical impedance spectroscopy (EIS) have been applied for lithiated graphite electrodes of different thicknesses. The spectra successfully modeled the whole range intercalation potentials, using a combination Voigt-type equivalent circuit analog Frumkin Melik-Gaykazyan (FMG) model. analog, which is series R||C circuits, models Li ion migration through surface films covering particles. FMG model...
The solid state diffusion of lithium into graphite during electrochemical intercalation processes was investigated using potentiostatic intermittent titration (PITT) and impedance spectroscopy (EIS). coefficient (D) as a function the level (X) electrode potential (E) calculated on basis both methods gave similar results. D vs X or E plots were found to be nonmonotonous, with three pronounced minima at same potentials in which cyclic voltammetry these systems shows peaks related phase...
Li and Mn‐rich layered cathodes, despite their high specific capacity, suffer from capacity fading discharge voltage decay upon cycling. Both of cathodes are stabilized cycling by optimized Al doping. Doping cathode materials 1.2 Ni 0.16 Mn 0.56 Co 0.08 O 2 on the account manganese (as reflected stoichiometry) results in a decrease but increases pronouncedly stability 0.51 0.05 exhibits 96% retention as compared to 68% for after 100 cycles. This doping also reduces average cycling, which is...
Fast ion adsorption processes in supercapacitors enable quick storage/delivery of significant amounts energy, while intercalation battery materials leads to even larger energy stored, but at substantially lower rates due diffusional limitations. Intercalation ions into the recently discovered 2D Ti 3 C 2 T x (MXene) occurs with a very high rate and capacitance, posing paradox. Herein, by characterizing mechanical deformations MXene electrode various states‐of‐charge variety cations (Li, Na,...
Electrochemical quartz crystal microbalance (EQCM) technique provides a direct assessment to the behavior of electroadsorbed ions and solvent molecules confined in micropores activated carbon electrodes contact with practically important aprotic electrolyte solutions. The estimated value solvation number equal 3 is evident for partial desolvation Li(+) cations when adsorbed micropores.
Although significant progress has been achieved in understanding of ion-exchange mechanisms the new family 2D transition metal carbides and nitrides known as MXenes, direct gravimetric assessment water insertion into MXene interlayer spaces mesopores not reported so far. Concurrently, latest research on Birnessite electrodes shows that nanoconfined dramatically improves their capacity rate capability. Hence, quantification amount confined solvated is becoming an important goal energy-related...
Abstract 2D ion‐intercalated metal oxides are emerging promising new electrodes for supercapacitors because of their unique layered structure as well distinctive electronic properties. To facilitate application, fundamental study the charge storage mechanism is required. Herein, it demonstrated that application in situ Raman spectroscopy and electrochemical quartz crystal microbalance with dissipation monitoring (EQCM‐D), provides a sufficient basis to elucidate typical cation‐intercalated...
ConspectusQuartz crystal microbalance with dissipation monitoring (QCM-D) generates surface-acoustic waves in quartz plates that can effectively probe the structure of films, particulate composite electrodes complex geometry rigidly attached to surface on one side and contacting a gas or liquid phase other side. The output QCM-D characteristics consist resonance frequency (MHz range) bandwidth measured extra-ordinary precision few tenths Hz. Depending stiffness/softness, operates either as...
Layered Li and Mn rich cathode materials of the xLi[Li1/3Mn2/3]O2.(1-x)LiMn1/3Ni1/3Co1/3O2 (x = 0.2, 0.4, 0.6) were synthesized by a self-combustion method, characterized XRD, SEM, HRTEM Raman spectroscopy studied as positive electrode for Li-ion batteries. The material with x 0.6 exhibits an initial high discharge specific capacity 270 mAh g−1 at C/10 rate in galvanostatic charge-discharge cycling, which decreases to 220 after 50 cycles. It also capability compared other composites....
It is generally accepted that solid-electrolyte interphase formed on the surface of lithium-battery electrodes play a key role in controlling their cycling performance. Although large variety surface-sensitive spectroscopies and microscopies were used for characterization, focus was species nature rather than mechanical properties films. Here we report highly sensitive method gravimetric viscoelastic probing formation films composite Li4Ti5O12 electrode coupled with lithium ions...