Персона:
Неволин, Владимир Николаевич

Организационные подразделения

Организационная единица

Институт лазерных и плазменных технологий

Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.

Фамилия

Неволин

Имя

Владимир Николаевич

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Теперь показываю 1 - 10 из 25

Только метаданные
Electrophysical and Photo-Electrocatalytic Properties of MoS2 Nanofilms
(2020) Fominski, V. Y.; Nevolin, V. N.; Romanov, R. I.; Rubinkovskaya, O. V.; Fominski, D. V.; Soloviev, A. A.; Фоминский, Вячеслав Юрьевич; Неволин, Владимир Николаевич; Романов, Роман Иванович; Рубинковская, Оксана Владимировна; Фоминский, Дмитрий Вячеславович; Соловьев, Алексей
© 2020, Pleiades Publishing, Ltd.Abstract: MoS2 nanofilms were created by thermochemical processing (sulfurization) of thin-film Мо and МоОу precursors in S vapor. The precursor films were created by pulsed laser deposition. The obtained molybdenum disulfide films consisted of 2H-MoS2 nanocrystals with laminar packing of basal planes oriented perpendicular to the film surface. The increase in the sulfurization temperature from 500°C to 800°C provided better quality of local packing and, as a consequence, reduction of electric resistance, higher concentration of carriers (electrons) and their mobility. The application of metal oxide precursor МоОу resulted in higher efficiency of synthesis of high quality MoS2 nanofilms. The efficiency of activation of the electrochemical processes of hydrogen production in an acidic solution was lower with crystalline MoS2 nanofilms than with amorphous MoSx films. Nanocrystalline MoS2 films, however, manifested improved photo- and electrocatalytic characteristics in activation of reactions of hydrogen and oxygen evolution in an alkaline solution.
Только метаданные
Component Selection and Nano-Structuring of WS2/MoS2/a-C Thin-Film Coatings for Reduction of Sliding Friction in Difficult Conditions
(2023) Romanov, R. I.; Fominski, D. V.; Nevolin, V. N.; Kasianenko, V. A.; Fominski, V. Y.; Романов, Роман Иванович; Фоминский, Дмитрий Вячеславович; Неволин, Владимир Николаевич; Фоминский, Вячеслав Юрьевич
Только метаданные
Influence of the Chemical Composition and Local Atomic Packing of Nanostructured MoSx and MoSex Solid Lubricant Coatings on Their Tribological Properties under Complicated Conditions
(2020) Fominski, V. Y.; Nevolin, V. N.; Fominski, D. V.; Romanov, R. I.; Gritskevich, M. D.; Фоминский, Вячеслав Юрьевич; Неволин, Владимир Николаевич; Фоминский, Дмитрий Вячеславович; Романов, Роман Иванович; Грицкевич, Мария Дмитриевна
© 2020, Pleiades Publishing, Ltd.Abstract: We present the results of a comparative investigation of the friction and wear characteristics of MoSx and MoSex coatings in an oxidizing medium (argon–air mixture) at a temperature of –100°C. Thin films of these solid lubricants were manufactured by pulsed laser deposition using MoS2, MoSe2, and Mo targets in vacuum and H2S. It was established that S-containing coatings ensured a friction coefficient of ~0.09 and were much superior to S-containing coatings in respect of wear. The properties of MoSx coatings depended on the concentration of S that determined the local atomic packing in the amorphous structure of the film. The friction coefficient of MoS3 coating after running-in was half as small as that of MoS2 and amounted to 0.08.
Только метаданные
Comparative studies of photoactivated H2 evolution for nano-needle WO3 films with crystalline 2H-WS2 and amorphous a-MoSx co-catalysts
(2021) Romanov, R. I.; Fominski, D. V.; Rubinkovskaya, O. V.; Soloviev, A. A.; Nevolin, V. N.; Fominski, V. Yu.; Романов, Роман Иванович; Фоминский, Дмитрий Вячеславович; Рубинковская, Оксана Владимировна; Соловьев, Алексей; Неволин, Владимир Николаевич; Фоминский, Вячеслав Юрьевич
© 2021 Institute of Physics Publishing. All rights reserved.(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-MoSx phases. For this, respectively, thermochemical treatment of metal oxide films in H2S gas and reaction pulsed laser deposition of molybdenum in H2S were applied. The functional characteristics of the hybrid structures were studied in a three-electrode electrochemical cell in an acid solution under intermittent illumination with a Xe lamp. a-MoSx film deposition caused a more significant improvement in the HER activity of MoSx/WO3 structure compared to that of WS2/WO3 structure. However, WS2/WO3 structures were superior to MoSx/WO3 structures in the efficiency of the photoactivated HER. The factors that could influence the (photo)electrocatalytic behaviour of the created structures were analysed.
Только метаданные
Study of the Mechanism of Photoactivated Hydrogen Evolution on a Silicon Photocathode with a-MoS x Thin-Film Catalyst
(2023) Rubinkovskaya, O. V.; Nevolin, V. N.; Fominski, D. V.; Romanov, R. I.; Kartsev, P. F.; Fominski, V. Y.; Рубинковская, Оксана Владимировна; Неволин, Владимир Николаевич; Фоминский, Дмитрий Вячеславович; Романов, Роман Иванович; Карцев, Петр Федорович; Фоминский, Вячеслав Юрьевич
Только метаданные
Comparative Studies of Nanoparticles Formed by Pulsed Laser Ablation of WSe2 in Water and Alcohol
(2024) Nevolin, V. N.; Fominski, D. V.; Solovyov, A. A.; Lesnykh, D. E.; Romanov, R. I.; Fominski, V. Y.; Неволин, Владимир Николаевич; Фоминский, Дмитрий Вячеславович; Соловьев, Алексей; Лесных, Данила Эдуардович; Романов, Роман Иванович; Фоминский, Вячеслав Юрьевич
Только метаданные
Surface-Enhanced Raman Scattering of the Double Transition Metal Mo2TiC2–Ox MXene-Based Structures
(2025) Zavidovskiy, I. A.; Belozerova, N. M.; Syuy, A. V.; Nevolin, V. N.; Fominski, V. Y.; Неволин, Владимир Николаевич; Фоминский, Вячеслав Юрьевич
Только метаданные
Optimization of MoSx Pulsed Laser Deposition of a Thin-Film Catalyst for an Efficient Hydrogen Evolution Reaction on a Silicon Photocathode
(2022) Fominski, D. V.; Vovchenko, V. D.; Rubinkovskaya, O. V.; Nevolin, V. N.; Fominskii, V. Yu.; Фоминский, Дмитрий Вячеславович; Вовченко, Евгений Дмитриевич; Рубинковская, Оксана Владимировна; Неволин, Владимир Николаевич; Фоминский, Вячеслав Юрьевич
Только метаданные
Nanostructured MoS3/WSe2 Thin-Film Photocathode for Efficient Water Splitting Under Light Illumination
(2021) Nevolin, V. N.; Romanov, R. I.; Fominski, D. V.; Rubinkovskaya, O. V.; Soloviev, A. A.; Fominski, V. Y.; Неволин, Владимир Николаевич; Романов, Роман Иванович; Фоминский, Дмитрий Вячеславович; Рубинковская, Оксана Владимировна; Соловьев, Алексей; Фоминский, Вячеслав Юрьевич
© 2021, Pleiades Publishing, Ltd.Abstract: The influence of the chemical state of a WOy thin-film precursor on formation of WSe2 nanofilms under rapid selenization on a glassy carbon substrate at 900°C is studied. A nanolayer of amorphous molybdenum sulfide (MoSx ~ 3), which has high catalytic activity in the electrochemical reaction of hydrogen evolution, is applied onto the surface of the obtained WSe2 films by pulsed laser deposition. It is shown that the composition of the WOy thin-film precursor has a significant effect on the morphology of the WSe2 nanolayers, and this characteristic largely determines the efficiency of hydrogen evolution by the MoS3/WSe2 heterostructure upon photoactivated water splitting. The most efficient hydrogen evolution is found for the MoS3/WSe2 photocathode heterostructure containing WSe2 in the form of crystal petals of ~50 nm in thickness, with these crystals oriented perpendicular to the substrate surface. A theoretical analysis of the possible effect of synergistic interaction at the MoS3/WSe2 interface on the efficiency of hydrogen evolution is carried out. Density functional theory calculations have shown that MoS3 clusters can increase the efficiency of the hydrogen evolution reaction upon contact with surface regions of WSe2 nanocrystals different in atomic packing.
Только метаданные
Features of the Application of Promising Catalysts from Amorphous Molybdenum Sulfide in the Creation of p-Si and pn-Si Photocathodes for the Production of Hydrogen in an Acidic Solution
(2024) Nevolin, V. N.; Rubinkovskaya, O. V.; Fominskii, D. V.; Romanov, R. I.; Fominskii, V. Y.; Неволин, Владимир Николаевич; Рубинковская, Оксана Владимировна; Фоминский, Дмитрий Вячеславович; Романов, Роман Иванович; Фоминский, Вячеслав Юрьевич