Ultrasmall Cu7S4@MoS2 hetero-nanoframes with abundant active edge sites for ultrahigh-performance hydrogen evolution

Jun Xu; Jiabin Cui; Chong Guo; Zipeng Zhao; Rui Jiang; Suying Xu; Zhongbin Zhuang; Yu Huang; Leyu Wang; Yadong Li

doi:10.1002/anie.201600686

Ultrasmall Cu₇S₄@MoS₂ hetero-nanoframes with abundant active edge sites for ultrahigh-performance hydrogen evolution

Jun Xu, Jiabin Cui, Chong Guo, Zipeng Zhao, Rui Jiang, Suying Xu, Zhongbin Zhuang, Yu Huang, Leyu Wang^*, Yadong Li

^*Corresponding author for this work

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

131 Citations (Scopus)

Abstract

Increasing the active edge sites of molybdenum disulfide (MoS₂) is an efficient strategy to improve the overall activity of MoS₂ for the hydrogen-evolution reaction (HER). Herein, we report a strategy to synthesize the ultrasmall donut-shaped Cu₇S₄@MoS₂ hetero-nanoframes with abundant active MoS₂ edge sites as alternatives to platinum (Pt) as efficient HER electrocatalysts. These nanoframes demonstrate an ultrahigh activity with 200 mA cm^-2 current density at only 206 mV overpotential using a carbon-rod counter electrode. The finding may provide guidelines for the design and synthesis of efficient and non-precious chalcogenide nanoframe catalysts. HER donuts: Ultrasmall donut-shaped Cu₇S₄@MoS₂ hetero-nanoframes were fabricated. These served as highly efficient and stable catalysts for the hydrogen-evolution reaction (HER) because of their good crystallinity and abundant MoS₂ active edge sites.

Original language	English
Pages (from-to)	6502-6505
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	22
DOIs	https://doi.org/10.1002/anie.201600686
Publication status	Published - 23 May 2016
Externally published	Yes

Keywords

electrocatalysis
hydrogen-evolution reaction
molybdenum disulfides
nanoframes

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10.1002/anie.201600686

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Xu, J., Cui, J., Guo, C., Zhao, Z., Jiang, R., Xu, S., Zhuang, Z., Huang, Y., Wang, L., & Li, Y. (2016). Ultrasmall Cu₇S₄@MoS₂ hetero-nanoframes with abundant active edge sites for ultrahigh-performance hydrogen evolution. Angewandte Chemie - International Edition, 55(22), 6502-6505. https://doi.org/10.1002/anie.201600686

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abstract = "Increasing the active edge sites of molybdenum disulfide (MoS2) is an efficient strategy to improve the overall activity of MoS2 for the hydrogen-evolution reaction (HER). Herein, we report a strategy to synthesize the ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes with abundant active MoS2 edge sites as alternatives to platinum (Pt) as efficient HER electrocatalysts. These nanoframes demonstrate an ultrahigh activity with 200 mA cm-2 current density at only 206 mV overpotential using a carbon-rod counter electrode. The finding may provide guidelines for the design and synthesis of efficient and non-precious chalcogenide nanoframe catalysts. HER donuts: Ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes were fabricated. These served as highly efficient and stable catalysts for the hydrogen-evolution reaction (HER) because of their good crystallinity and abundant MoS2 active edge sites.",

keywords = "electrocatalysis, hydrogen-evolution reaction, molybdenum disulfides, nanoframes",

author = "Jun Xu and Jiabin Cui and Chong Guo and Zipeng Zhao and Rui Jiang and Suying Xu and Zhongbin Zhuang and Yu Huang and Leyu Wang and Yadong Li",

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AU - Cui, Jiabin

AU - Guo, Chong

AU - Zhao, Zipeng

AU - Jiang, Rui

AU - Xu, Suying

AU - Zhuang, Zhongbin

AU - Huang, Yu

AU - Wang, Leyu

AU - Li, Yadong

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N2 - Increasing the active edge sites of molybdenum disulfide (MoS2) is an efficient strategy to improve the overall activity of MoS2 for the hydrogen-evolution reaction (HER). Herein, we report a strategy to synthesize the ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes with abundant active MoS2 edge sites as alternatives to platinum (Pt) as efficient HER electrocatalysts. These nanoframes demonstrate an ultrahigh activity with 200 mA cm-2 current density at only 206 mV overpotential using a carbon-rod counter electrode. The finding may provide guidelines for the design and synthesis of efficient and non-precious chalcogenide nanoframe catalysts. HER donuts: Ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes were fabricated. These served as highly efficient and stable catalysts for the hydrogen-evolution reaction (HER) because of their good crystallinity and abundant MoS2 active edge sites.

AB - Increasing the active edge sites of molybdenum disulfide (MoS2) is an efficient strategy to improve the overall activity of MoS2 for the hydrogen-evolution reaction (HER). Herein, we report a strategy to synthesize the ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes with abundant active MoS2 edge sites as alternatives to platinum (Pt) as efficient HER electrocatalysts. These nanoframes demonstrate an ultrahigh activity with 200 mA cm-2 current density at only 206 mV overpotential using a carbon-rod counter electrode. The finding may provide guidelines for the design and synthesis of efficient and non-precious chalcogenide nanoframe catalysts. HER donuts: Ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes were fabricated. These served as highly efficient and stable catalysts for the hydrogen-evolution reaction (HER) because of their good crystallinity and abundant MoS2 active edge sites.

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Ultrasmall Cu₇S₄@MoS₂ hetero-nanoframes with abundant active edge sites for ultrahigh-performance hydrogen evolution

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