Electrochemical preparation of poly(2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)methanol)/carbon fiber core/shell structure composite and its high capacitance performance

Xiumei Ma, Weiqiang Zhou, Daize Mo, Kaixin Zhang, Zhipeng Wang, Fengxing Jiang, Dufen Hu, Liqi Dong, Jingkun Xu*

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Poly(2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)methanol)/carbon fiber composite material (PDHDM/CF) was prepared via a simple electrodeposition method. The CF core and the PDHDM shell formed a 3-D PDHDM/CF core/shell structure composite. The PDHDM/CF was characterized by FT-IR spectroscopy, UV-vis spectra, SEM, cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscope techniques. Compared with the PDHDM deposited on glass carbon electrode (PDHDM/GC), PDHDM/CF exhibited a remarkable specific capacitance of 280 F g-1 at a scan rate of 10 mV s-1, which was nearly three times that of the PDHDM/GC. The specific capacitance of assembled symmetric supercapacitor based on PDHDM/CF reached 27.35 F g-1 at 0.5 A g-1 and the energy density was 6.38 Wh kg-1 at a power density of 3.9 kW kg-1. These results indicated that the PDHDM/CF was a promising electrode material for the flexible supercapacitors application.

Original languageEnglish
Pages (from-to)53-59
Number of pages7
JournalJournal of Electroanalytical Chemistry
Volume743
DOIs
Publication statusPublished - 15 Apr 2015
Externally publishedYes

Keywords

  • carbon fibers
  • conducting polymer
  • PEDOT derivatives
  • specific capacitance
  • supercapacitors

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