A5084819697- Electrochemical Analysis and Applications
- Laser-Ablation Synthesis of Nanoparticles
- Nanoparticles: synthesis and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Electrodeposition and Electroless Coatings
- nanoparticles nucleation surface interactions
- Nanowire Synthesis and Applications
- Metal Extraction and Bioleaching
- Catalytic Processes in Materials Science
- Silicon Nanostructures and Photoluminescence
- Material Properties and Applications
- CO2 Reduction Techniques and Catalysts
- Carbon Nanotubes in Composites
- Minerals Flotation and Separation Techniques
- Extraction and Separation Processes
- Electrocatalysts for Energy Conversion
- Nanomaterials for catalytic reactions
- Chalcogenide Semiconductor Thin Films
- Ionic liquids properties and applications
- Advanced materials and composites
- Ultrasound and Cavitation Phenomena
- Nanoporous metals and alloys
- Semiconductor materials and interfaces
- Anodic Oxide Films and Nanostructures
- Ammonia Synthesis and Nitrogen Reduction
Lviv Polytechnic National University
2015-2024
Ministry of Education and Science
2024
Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2021
Lviv National Musical Academy named after Mykola Lysenko
2019
Hetman Petro Sahaidachnyi National Army Academy
2013-2014
National University
2011
National Academy of Sciences of Ukraine
2004
G.V. Karpenko Physical-Mechanical Institute
1982-1988
Porous silicon (PSi) is used as an effective material in biomedicine, sensors, solar cells, electrochemical energy, microelectronics, and nanotechnology. Considering the dependence of PSi functional properties on pore geometry porous layer architecture, it important to develop methods for controlled formation. After all, “procession” method obtaining ⟶ architecture PSi, decisive role belongs first participant. Among most methods, etching suitable controllability processes nucleation growth...
The electrochemical method of synthesis silver nanoparticles (AgNPs) using ‘sacrificial’ anode as a source Ag + , microbial origin surfactant (rhamnolipid, RL) stabiliser AgNPs and electric current reducer is presented. Using cyclic voltammetry it was determined that RL concentration temperature are the main factors influencing rate anodic dissolution cathodic reduction formed complex [AgRL] . Increasing leads to increasing currents indicate increase formation. With from 40 60°C values 1.5...
The investigation results of silver, palladium and gold nanoscale particles deposition on the silicon surface in DMSO DMF media are presented.The influence organic aprotic solvents geometry metal their distribution substrate is described.It shown that solutions stable complexes ([Ag (CN) 2 ] -, [AuCl 4 -) main factor formation discrete nanoparticles with a small range sizes uniform along surface, as well nanostructured films.It has been established increase temperature from 313 to 343 K...
The results of studies the synthesis AgNPs colloidal solutions by cyclic voltammetry (E from +1.0 to −1.0 V) in rhamnolipid (RL) and use soluble anodes ultrasound field (22 kHz) are presented. It is shown that algorithm anodic dissolution—reduction Ag(I)—nucleation, formation makes it possible obtain nanoparticles with size 1 nm 3 nm. was found an increase RL concentration g/L 4 g/L, cathodic currents as well rate formation, respectively. also increases temperature 20°C 60°C, corresponds...
The paper shows the effectiveness of a “green” synthesis silver nanoparticles (AgNPs) in sodium polyacrylate (NaPA) solutions by sonoelectrochemical method using sacrificial anodes. Using cyclic voltammetry ultrasonic field range E from 1.0 to -1.0 V, temperature and NaPA concentration are main parameters influencing rate size AgNPs. As these increase, nanoparticle increases. According TEM studies, with increasing decreasing concentration, there is tendency increase However, all cases, AgNPs...
The great demand for functional, particularly biologically active, metal nanoparticles has led to the search technologically effective, green, and controlled methods of synthesizing these nanoparticles. Plasma glow discharge is one most promising techniques in this direction. results studies based on synthesis colloidal solutions stabilized silver (AgNPs) by microplasma method a nontoxic surfactant sodium polyacrylate (NaPA) are presented. It shown that AgNPs with size 2–20 nm formed...
Abstract The dependency of CO 2 reduction rate in acetonitrile-Bu 4 NClO solution on cathodes, which were modified by laser induction a copper surface, was studied. topography laser-induced periodic surface structures (LIPSS) → grooves spikes successively formed certain number pulses. It proved that for higher pulses, the area cathode increases and preferred platy orientation [022] crystallografic direction larger fluence values increase. At same time, content (I) oxide increases. Also,...
The surface of palladium particles deposited on the (indium tin oxide) ITO coated glass by means pulse electrolysis 0.01 M PdCl2 in dimethylformamide was investigated using atomic force microscopy. It shown that at potential value E=−1 V, duration (τon) 6 ms and pause (τoff) 300 discrete cone-shaped nano-sized are formed, which almost uniformly cover substrate's surface. size increases with increase duration. absorption spectra visible range coincide spectrum ITO. study photoluminescence...
The process of gold nanoparticle (AuNP) precipitation on the silicon (Si) surface by galvanic replacement (GR) in dimethyl sulfoxide (DMSO) solution depending concentration H[AuCl 4 ], temperature, and duration was investigated. It is established that with an increase [AuCl ] − ions (from 2 to 8 mM ]), both size AuNPs their coverage density are increased. demonstrated temperature causes from 40 80 nm at 40°C 80–120 120–160 50 60°C, respectively. As GR increases, there a tendency particle...
The cementation of silver on rotating magnesium disc from 0·005–0·02M thiocyanate solution was studied. It established that the process proceeded with a high rate in absence induction period. Metal recovery >99%. formation dispersed porous deposits and dependence their structures initial concentration ions were shown using SEM. product is powders purity ≥99·9 mass-%. Consumption 0·15–0·2 g account 1 obtained silver.