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

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)9950-9957
Number of pages8
JournalRSC Advances
Volume6
Issue number12
DOIs
Publication statusPublished - 2016
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint

Dive into the research topics of 'Hollow NiCo<sub>2</sub>S<sub>4</sub> nanotube arrays grown on carbon textile as a self-supported electrode for asymmetric supercapacitors'. Together they form a unique fingerprint.

Cite this