A5032223686- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Crystallization and Solubility Studies
- Extraction and Separation Processes
- Electrochemical Analysis and Applications
- Membrane-based Ion Separation Techniques
- MXene and MAX Phase Materials
- Conducting polymers and applications
- Enzyme Catalysis and Immobilization
- Inorganic Fluorides and Related Compounds
- Advanced Semiconductor Detectors and Materials
- Health and Medical Research Impacts
- Advanced Memory and Neural Computing
- X-ray Diffraction in Crystallography
- biodegradable polymer synthesis and properties
- Nanomaterials for catalytic reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Electron and X-Ray Spectroscopy Techniques
- Chalcogenide Semiconductor Thin Films
- Microencapsulation and Drying Processes
- Gas Sensing Nanomaterials and Sensors
- Advanced Nanomaterials in Catalysis
Al-Farabi Kazakh National University
2015-2024
National Center of Space Research and Technology
2018
Abstract The increasing demands from micro-power applications call for the development of electrode materials Li-ion microbatteries using thin-film technology. Porous Olivine-type LiFePO 4 (LFP) and NASICON-type Li 3 Fe 2 (PO ) have been successfully fabricated by radio frequency (RF) sputtering post-annealing treatments LFP thin films. microstructures films were characterized X-ray diffraction scanning electron microscopy. electrochemical performances evaluated cyclic voltammetry...
Self-organized TiO2 nanotubes grown on Ti grid acting as anode for Li-ion microbatteries were prepared via an electrochemical anodization. By tuning the anodization time, morphology and length of investigated by scanning electron microscope. When time reached 1.5 h, TiO2nts/Ti showed a well-defined nanotubes, which are stable, well adherent ~90 nm with 1.88 µm. Due to their high surface utilization, area material loading per unit area, TiO2nts /Ti using polymer electrolyte exhibited areal...
Reduced water activity in aqueous electrolytes affects oxygen evolution kinetics, expanding electrochemical stability via increased overpotential, but with conductivity and viscosity trade-offs high-voltage electrolytes.
We report the electrodeposition of polymer electrolyte (PMMA-PEG) in porous lithium nickel manganese oxide (LiNi0.5Mn1.5O4) cathode layer by cyclic voltammetry. The cathode-electrolyte interface polymer-coated LNMO electrode has been characterized scanning electron microscopy and electrochemical techniques. Electrochemical measurements consisting galvanostatic cycling tests impedance spectroscopy revealed a significant improvement capacity values increase operating voltage. These effects are...
MOF-74 is well known for its defined cellular pores. The structure of these pores can be relatively simply modified via changing solvents ( e.g. , THF) where the MOF forming.
Metal-organic compounds (MOFs) are a class of substances composed metal ions or clusters coordinated to organic ligands form one-, two-, three-dimensional structures. Due their high porosity, excellent adsorption and catalytic activity, as well the possibility simultaneous implementation various charge accumulation mechanisms, they can be used electrode materials for metal-ion batteries. However, significant disadvantage is that most MOFs have low electrical conductivity, production...
The use of Ti3C2Tx (MXene) electrodes for energy storage applications is gaining momentum. Considering the low flammability, high safety, and cost neutral aqueous electrolyte solutions, significant efforts have been devoted to utilization MXenes in this environment. However, despite stability excellent rate capability MXene electrolytes, their capacity remains insufficient, usually below 30 mAh/g. This work aims benefit from spontaneous oxidation materials under ambient conditions produce...
The lack of stable electrode materials for water-based electrolytes due to the intercalation and conversion reaction mechanisms encourage scientists design new or renovate existing with better cyclability, capacity, cost-effectiveness. Ag4[Fe(CN)6] is a material belonging Prussian blue family that can be used, as its other members, an intercalation/deintercalation conversion-type mechanism through Ag oxidation/reduction. However, instability this in dry state, it decomposes AgCN residual...
Yitao Long opened the discussion of paper by Lei Jiang:This was not presented; questions on this were communicated after meeting. This work is a very good example your recently proposed 'quantum-confined superfluid' concept – it really imperative to fabricate ion chann
<p>A formation of protective composite coatings based on nickel and organic substance inert nature, containing a corrosion inhibitor, encapsulated in polymer shell, was studied. The microcapsules were synthesized an aqueous-organic emulsion using the method shell modified gelatine surface microdroplets. Composite obtained by electrochemical codeposition matrix microcapsules, suspended electrolyte. Changes morphology, microhardness corrosive properties with respect to changes deposition...
Бас редактор: ЖҰРЫНОВ Мұрат Жұрынұлы, химия ғылымдарының докторы, профессор, ҚР ҰҒА академигі, Қазақстан Республикасы Ұлттық ғылым академиясының президенті, АҚ «Д.В.Сокольский атындағы отын, катализ және электрохимия институтының» бас директоры (
The disposal of LiFePO4 (LFP) cathode material through oxidation in an air atmosphere is explained by its high chemical activity and surface area (especially for nanoparticles). In this article, new methods the determination degree iron LFP (oxidation degree) are taken into consideration, specifically those which do not require complicated hardware support. proposed based on electrochemical (coulometric method) (chemical alkaline acidic solutions). As arbitration method analyzing state,...
Abstract Increasing surface area between electrodes and electrolytes drastically has proven to improve electrochemical performances of microbatteries. 3D enhancement owing the design micropillar permitted fulfill this need while maintaining same footprint area. Lithium nickel manganese oxide (cathode) titanate (anode) micropillars with different sizes are successfully fabricated on aluminum foils by laser ablation technique then separated a polymer electrolyte form stretchable lithium‐ion...
Электрохимический синтез TiO 2 -нанотрубок проводился в электролитах различного состава при наложении разности потенциалов на ячейку 60 В течение 5 часов.Полученные нанотрубки диоксида титана исследовались методом сканирующей электронной микроскопии (SEM).Электрохимические характеристики нанотрубок определялись методами вольтамперометрии и хронопотенциометрии трехэлектродной ячейке с платиновым вспомогательным электродом Li/Li + сравнения электролите 1М LiClO 4 пропиленкарбонате (ПК).На...
Julie MacPherson opened discussion of the paper by Richard M. Crooks: What happens if you apply a continuous potential, as opposed to pulsed in terms morphology Pt deposit? Why did choose such high frequency; what's rationale behind this? For frequencies