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Nano Research 2017, 10(8): 2570-2583 https://doi.org/10.1007/s12274-017-1459-9
Research Article | Issue | Published: 27 March 2017

Ultrathin ZnS nanosheet/carbon nanotube hybrid electrode for high-performance flexible all-solid-state supercapacitor

Show Author's Information Xiaoyi Hou1,2,  Tao Peng1,2,  Jinbing Cheng1,2,  Qiuhong Yu1,2,  Rongjie Luo1,2,  Yang Lu1,2,  Xianming Liu3,  Jang-Kyo Kim4,  Jun He5,  Yongsong Luo1,2( )
School of Physics and Electronic Engineering Xinyang Normal UniversityXinyang 464000 China
Key Laboratory of Advanced Micro/Nano Functional Materials Xinyang Normal UniversityXinyang 464000 China
College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang 471022 China
Department of Mechanical and Aerospace Engineering Hong Kong University of Science and Technology Clear Water Bay, KowloonHong Kong China
National Center for Nanoscience and TechnologyBeijing 100190 China
Keywords:
supercapacitor, flexible, ultrathin nanosheet, synergistic, multiwall C nanotubes decorated with hierarchical ultrathin zinc sulfide nanosheets(ZnS@CNT)
Cite this article:
Hou X, Peng T, Cheng J, et al. Ultrathin ZnS nanosheet/carbon nanotube hybrid electrode for high-performance flexible all-solid-state supercapacitor. Nano Research, 2017, 10(8): 2570-2583. https://doi.org/10.1007/s12274-017-1459-9
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Abstract Full text Electronic supplementary material About this article

Flexible and easily reconfigurable supercapacitors show great promise for application in wearable electronics. In this study, multiwall C nanotubes (CNTs) decorated with hierarchical ultrathin zinc sulfide (ZnS) nanosheets (ZnS@CNT) are synthesized via a facile method. The resulting ZnS@CNT electrode, which delivers a high specific capacitance of 347.3 F·g–1 and an excellent cycling stability, can function as a high-performance electrode for a flexible all-solid-state supercapacitor using a polymer gel electrolyte. Our device exhibits a remarkable specific capacitance of 159.6 F·g–1, a high energy density of 22.3 W·h·kg–1, and a power density of 5 kW·kg–1. It also has high electrochemical performance even under bending or twisting. The all-solid-state supercapacitors can be easily integrated in series to power different commercial light-emitting diodes without an external bias voltage.


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About this article

Ultrathin ZnS nanosheet/carbon nanotube hybrid electrode for high-performance flexible all-solid-state supercapacitor

Show Author's information Xiaoyi Hou1,2, Tao Peng1,2, Jinbing Cheng1,2, Qiuhong Yu1,2, Rongjie Luo1,2, Yang Lu1,2, Xianming Liu3, Jang-Kyo Kim4, Jun He5, Yongsong Luo1,2( )
School of Physics and Electronic Engineering Xinyang Normal UniversityXinyang 464000 China
Key Laboratory of Advanced Micro/Nano Functional Materials Xinyang Normal UniversityXinyang 464000 China
College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang 471022 China
Department of Mechanical and Aerospace Engineering Hong Kong University of Science and Technology Clear Water Bay, KowloonHong Kong China
National Center for Nanoscience and TechnologyBeijing 100190 China

Abstract

Flexible and easily reconfigurable supercapacitors show great promise for application in wearable electronics. In this study, multiwall C nanotubes (CNTs) decorated with hierarchical ultrathin zinc sulfide (ZnS) nanosheets (ZnS@CNT) are synthesized via a facile method. The resulting ZnS@CNT electrode, which delivers a high specific capacitance of 347.3 F·g–1 and an excellent cycling stability, can function as a high-performance electrode for a flexible all-solid-state supercapacitor using a polymer gel electrolyte. Our device exhibits a remarkable specific capacitance of 159.6 F·g–1, a high energy density of 22.3 W·h·kg–1, and a power density of 5 kW·kg–1. It also has high electrochemical performance even under bending or twisting. The all-solid-state supercapacitors can be easily integrated in series to power different commercial light-emitting diodes without an external bias voltage.

Keywords: supercapacitor, flexible, ultrathin nanosheet, synergistic, multiwall C nanotubes decorated with hierarchical ultrathin zinc sulfide nanosheets(ZnS@CNT)

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Publication history
Copyright
Acknowledgements

Publication history

Received: 25 November 2016
Revised: 21 December 2016
Accepted: 30 December 2016
Published: 27 March 2017
Issue date: August 2017

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2017

Acknowledgements

Acknowledgements

This work is financially supported by the National Natural Science Foundation of China (Nos. 61574122, 51502257, 21373107 and U1304108), the Innovative Research Team (in Science and Technology) in Universities in Henan Province (No. 13IRTSTHN018), the Key Project of Henan Educational Committee (No. 15A140035), and the program for Science & Technology Innovation Talents in Universities of Henan Province (No. 15HASTIT018).

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