Hybrid Fibers Made of Molybdenum Disulfide, Reduced Graphene Oxide, and Multi-Walled Carbon Nanotubes for Solid-State, Flexible, Asymmetric Supercapacitors

Gengzhi Sun, Xiao Zhang, Rongzhou Lin, Jian Yang, Hua Zhang, Peng Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

319 Citations (Scopus)

Abstract

One of challenges existing in fiber-based supercapacitors is how to achieve high energy density without compromising their rate stability. Owing to their unique physical, electronic, and electrochemical properties, two-dimensional (2D) nanomaterials, e.g., molybdenum disulfide (MoS2) and graphene, have attracted increasing research interest and been utilized as electrode materials in energy-related applications. Herein, by incorporating MoS2 and reduced graphene oxide (rGO) nanosheets into a well-aligned multi-walled carbon nanotube (MWCNT) sheet followed by twisting, MoS2-rGO/MWCNT and rGO/MWCNT fibers are fabricated, which can be used as the anode and cathode, respectively, for solid-state, flexible, asymmetric supercapacitors. This fiber-based asymmetric supercapacitor can operate in a wide potential window of 1.4 V with high Coulombic efficiency, good rate and cycling stability, and improved energy density.

Original languageEnglish
Pages (from-to)4651-4656
Number of pages6
JournalAngewandte Chemie - International Edition
Volume54
Issue number15
DOIs
Publication statusPublished - 7 Apr 2015
Externally publishedYes

Keywords

  • carbon nanotubes
  • flexible devices
  • graphene
  • molybdenum disulfide
  • supercapacitors

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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