Three-dimensional graphene nanosheets/carbon nanotube paper as flexible electrodes for electrochemical capacitors

Xiaoliang Yun, Jie Wang, Laifa Shen, Hui Dou, Xiaogang Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a flexible film electrode was prepared by depositing graphene nanosheets on carbon nanotube paper as a self-standing electrode for high-performance electrochemical capacitors. The composite film has a layered structure, where carbon nanotubes were efficiently intercalated in the layer of graphene nanosheets. The hierarchical structure of graphene nanosheet/carbon nanotube paper electrodes shows lower resistance to ions and electron transport. The unique electrodes exhibit high-rate capability and long-term cycling ability. A quasi-rectangular shape of CV curve can still be maintained even at a high scan rate of 10 V s-1. The capacitance decay was only 6.9% after 10,000 cycles at a current density of 6.4 mA cm-2.

Original languageEnglish
Pages (from-to)22173-22177
Number of pages5
JournalRSC Advances
Volume5
Issue number28
DOIs
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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