V. Yu. Fominski
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View article: The formation of unsaturated IrOx in SrIrO3 by cobalt-doping for acidic oxygen evolution reaction
The formation of unsaturated IrOx in SrIrO3 by cobalt-doping for acidic oxygen evolution reaction Open
Electrocatalytic water splitting is a promising route for sustainable hydrogen production. However, the high overpotential of the anodic oxygen evolution reaction poses significant challenge. SrIrO 3 -based perovskite-type catalysts have s…
View article: Enhanced Tribological Performance of Low-Friction Nanocomposite WSexSy/NP-W Coatings Prepared by Reactive PLD
Enhanced Tribological Performance of Low-Friction Nanocomposite WSexSy/NP-W Coatings Prepared by Reactive PLD Open
A novel laser-based method for producing nanocomposite coatings consisting of a tungsten sulfoselenide (WSexSy) matrix and W nanoparticles (NP-W) was developed. Pulsed laser ablation of WSe2 was carried out in H2S gas under appropriate las…
View article: Tribological Properties of WS2 Thin Films Containing Graphite-like Carbon and Ni Interlayers
Tribological Properties of WS2 Thin Films Containing Graphite-like Carbon and Ni Interlayers Open
The development and production of thin-film coatings having very low friction is an urgent problem of materials science. One of the most promising solutions is the fabrication of special nanocomposites containing transition-metal dichalcog…
View article: Pulsed Laser Phosphorus Doping and Nanocomposite Catalysts Deposition in Forming a-MoSx/NP-Mo//n+p-Si Photocathodes for Efficient Solar Hydrogen Production
Pulsed Laser Phosphorus Doping and Nanocomposite Catalysts Deposition in Forming a-MoSx/NP-Mo//n+p-Si Photocathodes for Efficient Solar Hydrogen Production Open
Pulsed laser deposition of nanostructured molybdenum sulfide films creates specific nonequilibrium growth conditions, which improve the electrocatalytic properties of the films in a hydrogen evolution reaction (HER). The enhanced catalytic…
View article: Comparative studies of photoactivated H<sub>2</sub> evolution for nano-needle WO<sub>3</sub> films with crystalline 2H-WS<sub>2</sub> and amorphous a-MoS<sub>x</sub> co-catalysts
Comparative studies of photoactivated H<sub>2</sub> evolution for nano-needle WO<sub>3</sub> films with crystalline 2H-WS<sub>2</sub> and amorphous a-MoS<sub>x</sub> co-catalysts Open
(Photo)electrocatalytic properties of nanostructured WO3 films used for H2 evolution reaction (HER) were modified by forming hybrid structures containing a crystalline 2H-WS2 and an amorphous a-MoSc phases. For this, respectively, thermoch…
View article: Application of Pulsed Laser Deposition in the Preparation of a Promising MoSx/WSe2/C(В) Photocathode for Photo-Assisted Electrochemical Hydrogen Evolution
Application of Pulsed Laser Deposition in the Preparation of a Promising MoSx/WSe2/C(В) Photocathode for Photo-Assisted Electrochemical Hydrogen Evolution Open
We studied the possibility of using pulsed laser deposition (PLD) for the formation of a MoSx/WSe2 heterostructure on a dielectric substrate. The heterostructure can be employed for effective solar water splitting to produce hydrogen. The …
View article: Specific Features of Reactive Pulsed Laser Deposition of Solid Lubricating Nanocomposite Mo–S–C–H Thin-Film Coatings
Specific Features of Reactive Pulsed Laser Deposition of Solid Lubricating Nanocomposite Mo–S–C–H Thin-Film Coatings Open
This work investigates the structure and chemical states of thin-film coatings obtained by pulsed laser codeposition of Mo and C in a reactive gas (H2S). The coatings were analysed for their prospective use as solid lubricating coatings fo…
View article: Preparation of Mo-S-P electrocatalytic films by pulsed laser ablation of MoS<sub>2</sub>/P composite target for effective hydrogen production
Preparation of Mo-S-P electrocatalytic films by pulsed laser ablation of MoS<sub>2</sub>/P composite target for effective hydrogen production Open
The results of structural and electrochemical studies of thin Mo-S-P films obtained by pulsed laser deposition at various conditions from a target made of mixture of MoS 2 and P powders are presented. For variation of S/P ratio and modific…
View article: Features of pulsed laser ablation of MoS<sub>2</sub> and MoSe<sub>2</sub> targets and their influence on the tribological properties of the deposited low friction films
Features of pulsed laser ablation of MoS<sub>2</sub> and MoSe<sub>2</sub> targets and their influence on the tribological properties of the deposited low friction films Open
Laser-initiated modification of the structure and morphology of the MoS 2 and MoSe 2 targets used to obtain antifriction thin-film coatings by pulsed laser deposition were studied. Significant differences were revealed in the ablation mech…
View article: Performance and Mechanism of Photoelectrocatalytic Activity of MoSx/WO3 Heterostructures Obtained by Reactive Pulsed Laser Deposition for Water Splitting
Performance and Mechanism of Photoelectrocatalytic Activity of MoSx/WO3 Heterostructures Obtained by Reactive Pulsed Laser Deposition for Water Splitting Open
This work studies the factors that affect the efficiency of the photoelectrochemical hydrogen evolution reaction (HER) using MoSx/WO3 nano-heterostructures obtained by reactive pulsed laser deposition (RPLD) on glass substrates covered wit…
View article: Reactive Pulsed Laser Deposition of Clustered-Type MoSx (x ~ 2, 3, and 4) Films and Their Solid Lubricant Properties at Low Temperature
Reactive Pulsed Laser Deposition of Clustered-Type MoSx (x ~ 2, 3, and 4) Films and Their Solid Lubricant Properties at Low Temperature Open
We studied the tribological properties of amorphous molybdenum sulfide (MoSx) thin-film coatings during sliding friction in an oxidizing environment at a low temperature (−100 °C). To obtain films with different sulfur contents (x ~ 2, 3, …
View article: Comparative Study of the Structure, Composition, and Electrocatalytic Performance of Hydrogen Evolution in MoSx~2+δ/Mo and MoSx~3+δ Films Obtained by Pulsed Laser Deposition
Comparative Study of the Structure, Composition, and Electrocatalytic Performance of Hydrogen Evolution in MoSx~2+δ/Mo and MoSx~3+δ Films Obtained by Pulsed Laser Deposition Open
Systematic and in-depth studies of the structure, composition, and efficiency of hydrogen evolution reactions (HERs) in MoSx films, obtained by means of on- and off-axis pulsed laser deposition (PLD) from a MoS2 target, have been performed…
View article: Superconductivity at 161 K in thorium hydride ThH10: Synthesis and properties
Superconductivity at 161 K in thorium hydride ThH10: Synthesis and properties Open
View article: Pulsed Laser Deposition of Nanostructured MoS3/np-Mo//WO3−y Hybrid Catalyst for Enhanced (Photo) Electrochemical Hydrogen Evolution
Pulsed Laser Deposition of Nanostructured MoS3/np-Mo//WO3−y Hybrid Catalyst for Enhanced (Photo) Electrochemical Hydrogen Evolution Open
Pulsed laser ablation of MoS2 and WO3 targets at appropriate pressures of background gas (Ar, air) were used for the preparation of new hybrid nanostructured catalytic films for hydrogen production in an acid solution. The films consisted …
View article: Influence of nanosecond laser irradiation on the structure and conductivity of BC<sub>x</sub> films
Influence of nanosecond laser irradiation on the structure and conductivity of BC<sub>x</sub> films Open
Thin-film precursors of BC x were formed by pulsed laser codeposition of boron and carbon. Targets made of pressed boron and carbon powders with an equal element content (B/C = 1/1) and an increased carbon content (B/C = 1/3) were used. Th…
View article: Formation of ultrathin MoS<sub>2</sub>films using laser-based methods
Formation of ultrathin MoS<sub>2</sub>films using laser-based methods Open
A comparative analysis of the abilities of several novel methods to produce ultrathin molybdenum disulphide (MoS 2 ) films containing from 1 to 10 molecular layers was carried out. To deposit MoS x films and MoO x precursor films, the atom…
View article: Selection of pulsed laser deposition conditions for preparation of perfect thin-film MoS<sub>x</sub> hydrogen evolution catalysts
Selection of pulsed laser deposition conditions for preparation of perfect thin-film MoS<sub>x</sub> hydrogen evolution catalysts Open
The influence of pulsed laser deposition conditions in the geometry “off-axis” on the catalytic properties of MoS x films in the hydrogen evolution reaction is investigated. For the deposition of MoS x films from MoS 2 target, pulsed laser…
View article: Local laser annealing of 3C-SiC film deposited on the silicon substrate by CVD
Local laser annealing of 3C-SiC film deposited on the silicon substrate by CVD Open
In this work, we try to suite an approach, which concerns of epitaxial graphene growth by laser irradiation of 3C-SiC (111) film deposited on silicon substrate (111) by chemical vapor deposition method. Laser treatment was performed by pul…
View article: Synthesis of Star-Shaped Boron Carbide Micro-Crystallites under High Pressure and High Temperatures
Synthesis of Star-Shaped Boron Carbide Micro-Crystallites under High Pressure and High Temperatures Open
We synthesized star-shaped pentagonal microcrystals of boron carbide with an extremely low carbon content (~5%), from m-carborane under high pressure (7 GPa) and high temperature (1370–1670 K). These crystals have five-fold symmetry and gr…
View article: Development of Micromechanical Device on the Base of Two-Way Shape Memory Alloy Ribbon
Development of Micromechanical Device on the Base of Two-Way Shape Memory Alloy Ribbon Open
The aim of the present work is to fabricate and to research microgrippers (microtweezers) on the basis of the two-way shape memory effect.Ti50Ni25Cu25 alloy (at.%) produced by melt-spinning technique in the form of layered amorphous-crysta…
View article: Models of WO<sub> <i>x</i> </sub> films growth during pulsed laser deposition at elevated pressures of reactive gas
Models of WO<sub> <i>x</i> </sub> films growth during pulsed laser deposition at elevated pressures of reactive gas Open
The films of tungsten oxides were prepared by pulsed laser ablation of W target in a reactive gas atmosphere (air of laboratory humidity). Optical analysis and ion signal measurements for the laser plume allowed to recognise a threshold ga…
View article: Structure, morphology and electrocatalytic properties of WO<sub> <i>x</i> </sub> thin films prepared by reactive pulsed laser deposition
Structure, morphology and electrocatalytic properties of WO<sub> <i>x</i> </sub> thin films prepared by reactive pulsed laser deposition Open
Nanostructured WOx<3 films were prepared by pulsed laser deposition in air from W target. The pressure of air was varied in a range of 10 – 100 Pa and the temperature of a glassy carbon substrate during the film deposition was 22 or 500°C.…
View article: Activation of electrocatalytic properties of a-C films by doping with MoSe<sub> <i>x</i> </sub> clusters
Activation of electrocatalytic properties of a-C films by doping with MoSe<sub> <i>x</i> </sub> clusters Open
Nanocomposite a-C(Mo/MoSex) thin films containing amorphous carbon matrix a-C, nano-Mo and MoSex ≥2 clusters were obtained by pulsed laser co-deposition of carbon and MoSe2. The deposition was carried out at room temperature onto a graphit…
View article: Regulation of nanoparticle impact on the growth of MoSe<sub>x</sub>films during pulsed laser evaporation of MoSe<sub>2</sub>target
Regulation of nanoparticle impact on the growth of MoSe<sub>x</sub>films during pulsed laser evaporation of MoSe<sub>2</sub>target Open
Irradiation of MoSe2 target with intensive laser pulses caused the formation of micro- and nanoparticles. The particles were observed on the target surface and in MoSex films prepared by deposition of the laser-induced plume. Content of na…
View article: Comparative studies of monoclinic and orthorhombic WO<sub>3</sub>films used for hydrogen sensor fabrication on SiC crystal
Comparative studies of monoclinic and orthorhombic WO<sub>3</sub>films used for hydrogen sensor fabrication on SiC crystal Open
Amorphous WOx films were prepared on the SiC crystal by using two different methods, namely, reactive pulsed laser deposition (RPLD) and reactive deposition by ion sputtering (RDIS). After deposition, the WOx films were annealed in an air.…
View article: Modification of properties of the rapidly quenched TiNiCu alloy underlaser irradiation
Modification of properties of the rapidly quenched TiNiCu alloy underlaser irradiation Open
The work deals with the study of the influence of combined action of thermomechanical and laser treatments of rapidly quenched TiNiCu thin ribbons on the properties of two-way shape memory effect. It was shown that increasing of the energy…
View article: Preparation of Low Friction MoSex/nc-Mo Coatings Containing Spherical Mo Nanoparticles
Preparation of Low Friction MoSex/nc-Mo Coatings Containing Spherical Mo Nanoparticles Open
The possibility of preparation of nanocomposite coatings consisting of a solid lubricant matrix (MoSex) and nanocrystalline metal particles (nc-Mo) was demonstrated using pulsed laser deposition from synthesized target MoSe2.The particles …
View article: Preparation and Study of thin Films of Tungsten Selenides for Electrocatalytic Hydrogen Evolution
Preparation and Study of thin Films of Tungsten Selenides for Electrocatalytic Hydrogen Evolution Open
Thin films of tungsten selenides (WSe x ) were obtained by using a method of shadow-masked pulsed laser deposition. The deposition at room temperature of substrates caused the formation of Se-enriched amorphous films (Se/W∼5) with pronounc…
View article: Evolution of Structure and Electrical Characteristics of Pt/WOx/6H-SiC Sensor Upon Exposure to H2 Gas at High Temperature
Evolution of Structure and Electrical Characteristics of Pt/WOx/6H-SiC Sensor Upon Exposure to H2 Gas at High Temperature Open
The bilayer film Pt/WOx was deposited by pulsed laser ablation on a silicon carbide monocrystal plate (6H-SiC) to form an H2 sensor for high temperature application. The study demonstrates high sensitivity of the Pt/WOx/SiC structure to a …
View article: Effect of Laser Treatment on Shape Memory Properties of TiNiCu Alloy
Effect of Laser Treatment on Shape Memory Properties of TiNiCu Alloy Open
The work deals with the research of the effect of pulsed laser radiation (λ=248 nm) on the structure and the manifestation of the shape memory effects (SMEs) in the Ti50Ni25Cu25 alloy, produced by melt spinning technique. It has been revea…