Formation of thin catalytic WSe x layer on graphite electrodes for activation of hydrogen evolution reaction in aqueous acid

Grigoriev, Sergey N.; Fominski, V. Yu.; Nevolin, V. N.; Романов, Р. И.; Волосова, М. А.; Иржак, А. В.

doi:10.1134/s2075113316020118

Cited by 9 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the fabrication of oxides and hydroxides on a graphite substrate, other materials such as sulfides, selenides have also been deposited directly on a graphite electrode. [ 192,193 ] For example, Irzhak et al. [ 193 ] deposited a thin film of WSe x on a graphite electrode for HER activity in acid.…”

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

“…[ 192,193 ] For example, Irzhak et al. [ 193 ] deposited a thin film of WSe x on a graphite electrode for HER activity in acid. Recently, N and S co‐doped graphene (SNG) has been attached to a conductive graphite foam (SNG@GF) by a drop‐casting method, followed by in situ annealing.…”

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

“…In addition to the utilization of flexible GF, graphite sheets have also been employed as a self-supported substrate for the growth of a variety of nano-and microstructured materials for electrocatalysis due to their highly conducting network structure, the presence of meso-/macropores, and a large specific surface area (SSA). [189][190][191][192][193][194] The HOPG is a highly pure and well-ordered form of synthetic graphite. In this regard, Wang et al [189] demonstrated the growth of self-supported graphene (SSG) on a flexible graphite sheet (SSG-FGS) via electrochemical intercalation.…”

Section: Highly Oriented Pyrolytic Graphite (Hopg)mentioning

confidence: 99%

See 2 more Smart Citations

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

View full text Add to dashboard Cite

Ni, Fe, and Cu foams to form robust binder-free electrodes for high-performance electrocatalytic reactions. [55][56][57][58][59] Interestingly, multidimensional electrocatalysts grown at the nanoscale on a range of current collectors, namely substrates and will benefit from a strong adhesion with the current collector to avoid catalyst delamination, limited active sites, and charge transfer blockage to enhance catalytic reactions (Figure 1b-d). [9,[60][61][62][63][64] Key Prospects, Insights, and the Dynamic Properties of Nano-and Microstructured Binder-Free Electrocatalysts and Their Direct Impact on Electrochemical ReactionsWater splitting has become one of the most important technologies to produce hydrogen (H 2 ) in high purity form. Water splitting includes two half-reactions, namely the cathodic HER and anodic OER. [8,65] Generally, the electrocatalytic performance and activity are highly sensitive to local reaction conditions and is largely valued by the energy required for adsorption/desorption of reaction intermediates and the rupture/creation of chemical bonds. Hence, the conventional powder form of precious metals such as Pt/C for the HER and RuO 2 or IrO 2 for the OER are considered ideal electrocatalysts. [66] In addition, several nonprecious 1D, 2D, and 3D nano-and microstructured powder catalysts such as MoS 2 , WS 2 , Ni 3 S 2 , NiCo 2 S 4 are also of interest for the HER and OER reactions. [54,[67][68][69][70][71][72][73][74] However, for commercial purposes and practical applica-

show abstract

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

Section: Fabrication Of Nanostructures On Binder‐free Electrodesmentioning

confidence: 99%

Section: Highly Oriented Pyrolytic Graphite (Hopg)mentioning

confidence: 99%

See 1 more Smart Citation

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…In its traditional on-axis configuration, pulsed layer deposition (PLD) makes it possible to create WSe 2 with a crystal structure and good catalytic properties [18][19][20][21]. However, when using the on-axis PLD to obtain WSe 2 films, problems were revealed with obtaining a stoichiometric composition with a perfect chemical state of atoms in the film.…”

Section: Introductionmentioning

confidence: 99%

“…However, when using the on-axis PLD to obtain WSe 2 films, problems were revealed with obtaining a stoichiometric composition with a perfect chemical state of atoms in the film. This situation can be attributed to several factors, including the preferential sputtering of selenium on a growing WSe 2 when exposed to laser-plasma and the propensity of selenium to form pure Se nanoparticles at room temperature or to be desorbed at higher substrate temperatures [20,[22][23][24]. Submicron-and nanoscale particles of metal W can be introduced into the film [25].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

MoSe2/graphite composite with excellent hydrogen evolution reaction performance fabricated by rapid selenization method

Mao

Zou

et al. 2019

Applied Surface Science

View full text Add to dashboard Cite

Formation of thin catalytic WSe x layer on graphite electrodes for activation of hydrogen evolution reaction in aqueous acid

Cited by 9 publications

References 16 publications

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

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

MoSe2/graphite composite with excellent hydrogen evolution reaction performance fabricated by rapid selenization method

Contact Info

Product

Resources

About