MoS2 nanoparticles coupled to SnS2 nanosheets: The structural and electronic modulation for synergetic electrocatalytic hydrogen evolution

Lin Hu; Xiu Feng Song; Sheng Li Zhang; Hai Bo Zeng; Xue Ji Zhang; Robert Marks; Dan Shan

doi:10.1016/j.jcat.2018.07.029

MoS₂ nanoparticles coupled to SnS₂ nanosheets: The structural and electronic modulation for synergetic electrocatalytic hydrogen evolution

Lin Hu, Xiu Feng Song, Sheng Li Zhang, Hai Bo Zeng, Xue Ji Zhang, Robert Marks, Dan Shan

Department of Biotechnology Engineering

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS₂ nanoparticles (MoS₂ NPs) coupled to SnS₂ ultrathin nanosheets (SnS₂ NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS₂ NPs/SnS₂ NS. Surprisingly, the MoS₂ NPs/SnS₂ NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm⁻²), small Tafel slope (∼42.1 mV decade⁻¹) and excellent electrocatalytical stability.

Original language	English
Pages (from-to)	8-15
Number of pages	8
Journal	Journal of Catalysis
Volume	366
DOIs	https://doi.org/10.1016/j.jcat.2018.07.029
State	Published - 1 Oct 2018

Keywords

Electronic modulation
Hydrogen evolution reaction (HER)
Molybdenum disulfide nanoparticles
Tin disulfide nanosheet

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jcat.2018.07.029

Cite this

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title = "MoS2 nanoparticles coupled to SnS2 nanosheets: The structural and electronic modulation for synergetic electrocatalytic hydrogen evolution",

abstract = "The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS2 nanoparticles (MoS2 NPs) coupled to SnS2 ultrathin nanosheets (SnS2 NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS2 NPs/SnS2 NS. Surprisingly, the MoS2 NPs/SnS2 NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm−2), small Tafel slope (∼42.1 mV decade−1) and excellent electrocatalytical stability.",

keywords = "Electronic modulation, Hydrogen evolution reaction (HER), Molybdenum disulfide nanoparticles, Tin disulfide nanosheet",

author = "Lin Hu and Song, {Xiu Feng} and Zhang, {Sheng Li} and Zeng, {Hai Bo} and Zhang, {Xue Ji} and Robert Marks and Dan Shan",

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T2 - The structural and electronic modulation for synergetic electrocatalytic hydrogen evolution

AU - Hu, Lin

AU - Song, Xiu Feng

AU - Zhang, Sheng Li

AU - Zeng, Hai Bo

AU - Zhang, Xue Ji

AU - Marks, Robert

AU - Shan, Dan

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS2 nanoparticles (MoS2 NPs) coupled to SnS2 ultrathin nanosheets (SnS2 NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS2 NPs/SnS2 NS. Surprisingly, the MoS2 NPs/SnS2 NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm−2), small Tafel slope (∼42.1 mV decade−1) and excellent electrocatalytical stability.

AB - The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS2 nanoparticles (MoS2 NPs) coupled to SnS2 ultrathin nanosheets (SnS2 NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS2 NPs/SnS2 NS. Surprisingly, the MoS2 NPs/SnS2 NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm−2), small Tafel slope (∼42.1 mV decade−1) and excellent electrocatalytical stability.

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