Electrodeposition of Polypyrrole and Reduced Graphene Oxide onto Carbon Bundle Fibre as Electrode for Supercapacitor

Hamra Assyaima Abdul Bashid, Hong Ngee Lim, Sazlinda Kamaruzaman, Suraya Abdul Rashid, Robiah Yunus, Nay Ming Huang, Chun Yang Yin, Mohammad Mahbubur Rahman, Mohammednoor Altarawneh, Zhong Tao Jiang, Pandikumar Alagarsamy

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72 Citations (Scopus)


Abstract: A nanocomposite comprising of polypyrrole and reduced graphene oxide was electrodeposited onto a carbon bundle fibre (CBF) through a two-step approach (CBF/PPy-rGO-2). The CBF/PPy-rGO-2 had a highly porous structure compared to a nanocomposite of polypyrrole and reduced graphene oxide that was electrodeposited onto a CBF in a one-step approach (CBF/PPy-rGO), as observed through a field emission scanning electron microscope. An X-ray photoelectron spectroscopic analysis revealed the presence of hydrogen bond between the oxide functional groups of rGO and the amine groups of PPy in PPy-rGO-2 nanocomposite. The fabricated CBF/PPy-rGO-2 nanocomposite material was used as an electrode material in a symmetrical solid-state supercapacitor, and the device yielded a specific capacitance, energy density and power density of 96.16 F g− 1, 13.35 Wh kg− 1 and of 322.85 W kg− 1, respectively. Moreover, the CBF/PPy-rGO-2 showed the capacitance retention of 71% after 500 consecutive charge/discharge cycles at a current density of 1 A g− 1. The existence of a high degree of porosity in CBF/PPy-rGO-2 significantly improved the conductivity and facilitated the ionic penetration. The CBF/PPy-rGO-2-based symmetrical solid-state supercapacitor device demonstrated outstanding pliability because the cyclic voltammetric curves remained the same upon bending at various angles. Graphical Abstract: Carbon bundle fibre modified with porous polypyrrole/reduced graphene oxide nanocomposite for flexible miniature solid-state supercapacitor.

Original languageEnglish
Article number246
JournalNanoscale Research Letters
Issue number1
Publication statusPublished - Dec 1 2017
Externally publishedYes


  • Carbon bundle fibre
  • Flexible supercapacitor
  • Graphene
  • Polypyrrole

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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