Edge-oriented MoS 2 supported on nickel/carbon core-shell nanospheres for enhanced hydrogen evolution reaction performance

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Edge-oriented MoS 2 supported on nickel/carbon core-shell nanospheres for enhanced hydrogen evolution reaction performance. / Wang, Yin; Wang, Zegao; Yang, Qian; Hua, An; Ma, Song; Zhang, Zhidong; Dong, Mingdong.

In: New Journal of Chemistry, Vol. 43, No. 16, 2019, p. 6146-6152.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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Wang, Yin ; Wang, Zegao ; Yang, Qian ; Hua, An ; Ma, Song ; Zhang, Zhidong ; Dong, Mingdong. / Edge-oriented MoS 2 supported on nickel/carbon core-shell nanospheres for enhanced hydrogen evolution reaction performance. In: New Journal of Chemistry. 2019 ; Vol. 43, No. 16. pp. 6146-6152.

Bibtex

@article{471aedfa108049b08dc686c0561fa754,
title = "Edge-oriented MoS 2 supported on nickel/carbon core-shell nanospheres for enhanced hydrogen evolution reaction performance",
abstract = " Molybdenum disulfide (MoS 2 ), as one of the important two-dimensional (2D) transition metal dichalcogenides (TMDs), has shown huge potential for catalytic applications. However, both poor conductivity and insufficient active edge sites are the main obstacles limiting MoS 2 as a highly efficient electrocatalyst. In this study, a great number of edge-oriented 2D-MoS 2 nanosheets were synthesized on the surface of nickel/carbon (Ni/C) core-shell spheres. The edge-oriented MoS 2 nanosheets not only increase the number of exposed active edges, but also promote the charge transfer between active edges and Ni/C spheres. The electrochemical results show that nickel/carbon/MoS 2 (Ni/C/MoS 2 ) nanospheres deliver the highest activity with a Tafel slope as small as 55.5 mV per decade and an overpotential as small as 275 mV at a current density of 10 mA cm −2 . Furthermore, this Ni/C/MoS 2 core-shell architecture shows good stability and durability by the proof of 2000 cycles of cyclic voltammetry followed by a 9000 s i-t curve test. The method provides an opportunity to further improve the electrochemical catalysis of MoS 2 to produce hydrogen for energy storage. ",
keywords = "ABSORPTION, CATALYSTS, COMPOSITES, DISULFIDE, ELECTROCATALYSTS, FACILE SYNTHESIS, GRAPHENE, NANOSHEETS, OXIDE",
author = "Yin Wang and Zegao Wang and Qian Yang and An Hua and Song Ma and Zhidong Zhang and Mingdong Dong",
year = "2019",
doi = "10.1039/c9nj00612e",
language = "English",
volume = "43",
pages = "6146--6152",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "ROYAL SOC CHEMISTRY",
number = "16",

}

RIS

TY - JOUR

T1 - Edge-oriented MoS 2 supported on nickel/carbon core-shell nanospheres for enhanced hydrogen evolution reaction performance

AU - Wang, Yin

AU - Wang, Zegao

AU - Yang, Qian

AU - Hua, An

AU - Ma, Song

AU - Zhang, Zhidong

AU - Dong, Mingdong

PY - 2019

Y1 - 2019

N2 - Molybdenum disulfide (MoS 2 ), as one of the important two-dimensional (2D) transition metal dichalcogenides (TMDs), has shown huge potential for catalytic applications. However, both poor conductivity and insufficient active edge sites are the main obstacles limiting MoS 2 as a highly efficient electrocatalyst. In this study, a great number of edge-oriented 2D-MoS 2 nanosheets were synthesized on the surface of nickel/carbon (Ni/C) core-shell spheres. The edge-oriented MoS 2 nanosheets not only increase the number of exposed active edges, but also promote the charge transfer between active edges and Ni/C spheres. The electrochemical results show that nickel/carbon/MoS 2 (Ni/C/MoS 2 ) nanospheres deliver the highest activity with a Tafel slope as small as 55.5 mV per decade and an overpotential as small as 275 mV at a current density of 10 mA cm −2 . Furthermore, this Ni/C/MoS 2 core-shell architecture shows good stability and durability by the proof of 2000 cycles of cyclic voltammetry followed by a 9000 s i-t curve test. The method provides an opportunity to further improve the electrochemical catalysis of MoS 2 to produce hydrogen for energy storage.

AB - Molybdenum disulfide (MoS 2 ), as one of the important two-dimensional (2D) transition metal dichalcogenides (TMDs), has shown huge potential for catalytic applications. However, both poor conductivity and insufficient active edge sites are the main obstacles limiting MoS 2 as a highly efficient electrocatalyst. In this study, a great number of edge-oriented 2D-MoS 2 nanosheets were synthesized on the surface of nickel/carbon (Ni/C) core-shell spheres. The edge-oriented MoS 2 nanosheets not only increase the number of exposed active edges, but also promote the charge transfer between active edges and Ni/C spheres. The electrochemical results show that nickel/carbon/MoS 2 (Ni/C/MoS 2 ) nanospheres deliver the highest activity with a Tafel slope as small as 55.5 mV per decade and an overpotential as small as 275 mV at a current density of 10 mA cm −2 . Furthermore, this Ni/C/MoS 2 core-shell architecture shows good stability and durability by the proof of 2000 cycles of cyclic voltammetry followed by a 9000 s i-t curve test. The method provides an opportunity to further improve the electrochemical catalysis of MoS 2 to produce hydrogen for energy storage.

KW - ABSORPTION

KW - CATALYSTS

KW - COMPOSITES

KW - DISULFIDE

KW - ELECTROCATALYSTS

KW - FACILE SYNTHESIS

KW - GRAPHENE

KW - NANOSHEETS

KW - OXIDE

UR - http://www.scopus.com/inward/record.url?scp=85064398211&partnerID=8YFLogxK

U2 - 10.1039/c9nj00612e

DO - 10.1039/c9nj00612e

M3 - Journal article

AN - SCOPUS:85064398211

VL - 43

SP - 6146

EP - 6152

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 16

ER -