Pulsed laser deposition of amorphous molybdenum disulfide films for efficient hydrogen evolution reaction

2017 ◽  
Vol 258 ◽  
pp. 876-882 ◽  
Author(s):  
Ruijing Wang ◽  
Peng Sun ◽  
Huanwen Wang ◽  
Xuefeng Wang
Keyword(s):  
Pulsed Laser Deposition ◽  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Pulsed Laser ◽  
Laser Deposition

Pulsed laser deposition of nanocomposite MoSex/Mo thin-film catalysts for hydrogen evolution reaction

2015 ◽  
Vol 592 ◽  
pp. 175-181 ◽  
Author(s):  
S.N. Grigoriev ◽  
V.Yu. Fominski ◽  
R.I. Romanov ◽  
M.A. Volosova ◽  
A.V. Shelyakov
Keyword(s):  
Thin Film ◽  
Pulsed Laser Deposition ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Thin Film Catalysts

Direct growth of high-content 1T phase MoS2 film by pulsed laser deposition for hydrogen evolution reaction

2020 ◽  
Vol 504 ◽  
pp. 144320 ◽  
Author(s):  
Ruijing Wang ◽  
Qiang Shao ◽  
Qin Yuan ◽  
Peng Sun ◽  
Rongrong Nie ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Mos2 Film ◽  
Direct Growth

Application of Pulsed Laser Deposition in Reactive Gaseous Media to Fabricate an Effective Hybrid MoS x /WO y Catalyst for the Reaction of Hydrogen Evolution

2018 ◽  
Vol 9 (2) ◽  
pp. 297-304 ◽  
Author(s):  
V. N. Nevolin ◽  
S. N. Grigoriev ◽  
V. Yu. Fominski ◽  
R. I. Romanov ◽  
M. A. Volosova ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Hydrogen Evolution ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Gaseous Media

scholarly journals 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

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 201 ◽  
Author(s):  
V. Fominski ◽  
M. Demin ◽  
D. Fominski ◽  
R. Romanov ◽  
A. Goikhman ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Hydrogen Evolution ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Morphological Properties ◽  
Electrochemical Characteristics ◽  
Laser Plume ◽  
Standard Configuration ◽  
Hydrogen Evolution Reactions ◽  
Ar Gas

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. The use of on-axis PLD (a standard configuration of PLD) in a buffer of Ar gas, with an optimal pressure, has allowed for the formation of porous hybrid films that consist of Mo particles which support a thin MoSx~2+δ (δ of ~0.7) film. The HER performance of MoSx~2+δ/Mo films increases with increased loading and reaches the highest value at a loading of ~240 μg/cm2. For off-axis PLD, the substrate was located along the axis of expansion of the laser plume and the film was formed via the deposition of the atomic component of the plume, which was scattered in Ar molecules. This made it possible to obtain homogeneous MoSx~3+δ (δ~0.8–1.1) films. The HER performances of these films reached saturation at a loading value of ~163 μg/cm2. The MoSx~3+δ films possessed higher catalytic activities in terms of the turnover frequency of their HERs. However, to achieve the current density of 10 mA/cm2, the lowest over voltages were −162 mV and −150 mV for the films obtained by off- and on-axis PLD, respectively. Measurements of electrochemical characteristics indicated that the differences in the achievable HER performances of these films could be caused by their unique morphological properties.

scholarly journals Application of Pulsed Laser Deposition in the Preparation of a Promising MoSx/WSe2/C(В) Photocathode for Photo-Assisted Electrochemical Hydrogen Evolution

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1461
Author(s):  
Roman Romanov ◽  
Vyacheslav Fominski ◽  
Maxim Demin ◽  
Dmitry Fominski ◽  
Oxana Rubinkovskaya ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Hydrogen Evolution ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Mutual Arrangement ◽  
Energy Bands ◽  
Laser Plume ◽  
Solar Water Splitting ◽  
Catalytically Active

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 sapphire substrate with the conducting C(B) film (rear contact) helped increase the formation temperature of the WSe2 film to obtain the film consisting of 2H-WSe2 near-perfect nanocrystals. The WSe2 film was obtained by off-axis PLD in Ar gas. The laser plume from a WSe2 target was directed along the substrate surface. The preferential scattering of selenium on Ar molecules contributed to the effective saturation of the WSe2 film with chalcogen. Nano-structural WSe2 film were coated by reactive PLD with a nanofilm of catalytically active amorphous MoSx~4. It was established that the mutual arrangement of energy bands in the WSe2 and MoSx~4 films facilitated the separation of electrons and holes at the interface and electrons moved to the catalytically active MoSx~4. The current density during light-assisted hydrogen evolution was above ~3 mA/cm2 (at zero potential), whilst the onset potential reached 400 mV under irradiation with an intensity of 100 mW/cm2 in an acidic solution. Factors that may affect the HER performance of MoSx~4/WSe2/C(В) structure are discussed.

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