Synthesis and electrochemical properties of graphene oxide/nanosulfur/polypyrrole ternary nanocomposite hydrogel for supercapacitors

Authors

  • Chunnian Chen,

    Corresponding author
    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Xuwang Fu,

    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Ting Ma,

    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Wei Fan,

    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Zhongbing Wang,

    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Shiding Miao

    1. Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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ABSTRACT

A method for synthesizing Graphene oxide (GO)/nano-sulfur/polypyrrole (PPy) ternary nanocomposite hydrogel is depicted. The higher surface area of GO, PPy porous structure and their excellent conductivity are utilized, and the GO hydrogel can be made easily. The products are characterized by field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectra, and electrochemical workstation. The results demonstrated that GO/nano-S/PPy ternary nanocomposite hydrogel is successfully synthesized. The electrochemical properties are investigated by cyclic voltammetry, galvanostatic charge/discharge measurements, and cycling life in a three-electrode system in 1M Li2SO4 electrolyte solution. The GO/nano-S/PPy ternary nanocomposite hydrogel exhibit a high specific capacitance of 892.5 F g−1 at scan rates of 5 mV s−1 and the capacitance retain about 81.2% (594.8 F g−1) of initial capacitance (732.5 F g−1) after 500 cycles at a current density of 1 A g−1. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40814.

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