Hollow NiCo2S4 nanotube arrays grown on carbon textile as a self-supported electrode for asymmetric supercapacitors

Liang Hao, Laifa Shen*, Jie Wang, Yunling Xu, Xiaogang Zhang

*この研究の対応する著者

研究成果: Article査読

38 被引用数 (Scopus)

抄録

Although supercapacitors possess a fast charge/discharge capability, the practical application of supercapacitors is still hindered largely by their low energy density. Improving the electrochemical performance of supercapacitors depends largely on the development of novel electrode materials and hybrid systems. In this work, hollow NiCo2S4 nanotube arrays are successfully grown on carbon textile (CT) with robust adhesion through a two-step synthesis, involving the growth of a solid nanowire precursor and subsequent conversion into NiCo2S4 nanotubes using a sulfidation process. Using CT-supported NiCo2S4 nanotube arrays as the positive electrode and activated carbon as the negative electrode, a high-performance asymmetric supercapacitor with a maximum voltage of 1.6 V has been fabricated, which manifests high energy density (∼40.1 W h kg-1 at 451 W kg-1), high power density (∼4725 W kg-1 at 21 W h kg-1) and excellent cyclability.

本文言語English
ページ(範囲)9950-9957
ページ数8
ジャーナルRSC Advances
6
12
DOI
出版ステータスPublished - 2016
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)

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