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

^*此作品的通讯作者

Beijing University of Chemical Technology
University of California at Los Angeles
Tsinghua University

科研成果: 期刊稿件 › 文章 › 同行评审

139 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	6502-6505
页数	4
期刊	Angewandte Chemie - International Edition
卷	55
期	22
DOI	https://doi.org/10.1002/anie.201600686
出版状态	已出版 - 23 5月 2016
已对外发布	是

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

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",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2016",

month = may,

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doi = "10.1002/anie.201600686",

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T1 - Ultrasmall Cu7S4@MoS2 hetero-nanoframes with abundant active edge sites for ultrahigh-performance hydrogen evolution

AU - Xu, Jun

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

PY - 2016/5/23

Y1 - 2016/5/23

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.

KW - electrocatalysis

KW - hydrogen-evolution reaction

KW - molybdenum disulfides

KW - nanoframes

UR - https://www.scopus.com/pages/publications/84969597462

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DO - 10.1002/anie.201600686

M3 - Article

AN - SCOPUS:84969597462

SN - 1433-7851

VL - 55

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EP - 6505

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 22

ER -

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

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