Few-layer FePS3 decorated with thin MoS2 nanosheets for efficient hydrogen evolution reaction in alkaline and acidic media

Huang, Hongjiao; Song, Jizhong; Yu, Deshuang; Hao, Yanan; Wang, Yonghan; Peng, Shengjie

doi:10.1016/j.apsusc.2020.146623

Cited by 39 publications

(24 citation statements)

References 48 publications

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“…On the other hand, the lattice structure at other locations on the surface is less obvious but it generally maintained the polycrystalline state of long-range disorder and short-range order. At the same time, the lattice structure of MoS 2 has a large number of flaws, and it has been widely reported in the literature that the presence of defects increases the active site of HER, ,, thus improving the catalytic performance. On the other hand, the lattice structure of MoS 2 is close to the crystal structure of MoO 2 , which further confirms the formation of MoS 2 -MoO 2 heterostructures, coincident with the SEM and EDX images observation.…”

Section: Resultsmentioning

confidence: 99%

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Wang

et al. 2022

ACS Appl. Nano Mater.

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To optimize the disadvantage of low conductivity and few active sites of MoS 2 -based catalysts, in situ growth on carbonized wood (CW) through coupling of conductive materials and MoS 2 can be a proven strategy. Herein, a three-dimensional self-supporting electrode with a heterostructure of nanosheet MoS 2 -decorated MoO 2 grown on CW (MoS 2 -MoO 2 /CW) is prepared for the hydrogen evolution reaction (HER) via a simple two-step chemical vapor deposition strategy. The coupling of MoS 2 and MoO 2 with excellent electrical conductivity and the rational design of three-dimensional self-supporting electrodes are the key factors to improve the catalytic performance. The designed MoS 2 -MoO 2 /CW electrode has a potential of 148 mV at a current density of 10 mA cm −2 , a low Tafel slope of 86.7 mV dec −1 , and outstanding long-term stability in 0.5 M H 2 SO 4 . Consequently, wood-based porous carbon electrodes with a heterogeneous structure of nanosheet MoS 2 -decorated MoO 2 can provide meaningful references for MoS 2 -based electrocatalysts.

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Section: Resultsmentioning

confidence: 99%

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Wang

et al. 2022

ACS Appl. Nano Mater.

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“…10(c) ). Huang et al 185 designed an exfoliated few-layer FePS 3 decorated with vertical MoS 2 nanosheets through a facile hydrothermal reaction. The synergistic effect between the FePS 3 and MoS 2 led to excellent HER performance.…”

Section: Main Strategies To Promote the Her Performance Of Mosmentioning

confidence: 99%

Strategies to improve electrocatalytic performance of MoS₂-based catalysts for hydrogen evolution reactions

et al. 2022

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“…CuPS 3 monolayer is composed of Cu and P atoms in an octagonal structure of S atoms, and have Cu and P atoms between two sheets of S atoms [29]. This structure provides a large specific surface area and many adsorption sites for transition metal atoms to be anchored and thus achieves a good thermodynamic stability [30]. CuPS 3 monolayer can be easily obtained by exfoliating their bulk counterpart into a layered structure due to the van der Waals (vdW) interactions between each layers, which opens up the possibility of mass productions [31].…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Atoms Anchored on CuPS3 Monolayer for Enhancing Catalytic Performance of Hydrogen Evolution Reactions

Sun

Huang

et al. 2022

Electrocatalysis

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The noble metal such as Pt has been used as the catalysts for hydrogen evolution reaction (HER), but with problems such as scarcity of resources and high cost. Anchoring transition metal atoms onto the catalysts is regarded as a potential approach to solve this problem and enhance the electrocatalytic performance of HER. For this purpose, two-dimensional materials, such as CuPS3 monolayer, are regarded as one of the most ideal carriers for adsorption of metal atoms. However, there is no previous study on this topic. In this paper, we systematically studied microstructures, electronic properties, and electrocatalytic performance of the CuPS3 monolayer anchored with transition metal atoms (e.g., Sc, Ti, V, Cr, Mn, Fe, Co, and Ni) using a density functional theory (DFT). Results showed that all the transition metal atoms are favorably adsorbed onto the CuPS3 monolayer with large binding energies at the top of the Cu atom. The pristine CuPS3 monolayer has a large catalytic inertia for hydrogen evolution reactions, whereas after anchored with transition metal atoms, their catalytic performances have been significantly improved. The Gibbs free energy (ΔGH) is 0.44 eV for the H atom absorbed onto the pristine CuPS3 monolayer, whereas the ΔGH values for the V, Fe, and Ni atoms anchored onto the CuPS3 monolayer are 0.02, 0.11, and 0.09 eV, respectively, which is close to the ΔGH of H atom adsorbed on Pt (e.g., −0.09 eV). At the same time, the influence of hydrogen coverage rate was calculated. The result shows that V adsorbed on CuPS3 monolayer is catalytic active for HER for a large range of hydrogen coverage. Our results demonstrate that anchoring of V atom onto the CuPS3 monolayer is a potentially superior method for making the catalyst for the HER. Graphical abstract

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Few-layer FePS3 decorated with thin MoS2 nanosheets for efficient hydrogen evolution reaction in alkaline and acidic media

Cited by 39 publications

References 48 publications

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Strategies to improve electrocatalytic performance of MoS₂-based catalysts for hydrogen evolution reactions

Transition Metal Atoms Anchored on CuPS3 Monolayer for Enhancing Catalytic Performance of Hydrogen Evolution Reactions

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Few-layer FePS3 decorated with thin MoS2 nanosheets for efficient hydrogen evolution reaction in alkaline and acidic media

Cited by 39 publications

References 48 publications

Nanosheet MoS2-Decorated MoO2 on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Nanosheet MoS2-Decorated MoO2 on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Strategies to improve electrocatalytic performance of MoS2-based catalysts for hydrogen evolution reactions

Transition Metal Atoms Anchored on CuPS3 Monolayer for Enhancing Catalytic Performance of Hydrogen Evolution Reactions

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Product

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About

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Nanosheet MoS₂-Decorated MoO₂ on Porous Carbon as Electrodes for Efficient Hydrogen Evolution

Strategies to improve electrocatalytic performance of MoS₂-based catalysts for hydrogen evolution reactions