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Electric Double Layer Capacitors With Carbon Nanotubes Electrodes And Gel Polymer/Polyacid Electrolytes

Author

Listed:
  • YANPING ZHANG

    (Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China)

  • LIKUN PAN

    (Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China)

  • YANG GAO

    (Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China)

  • ZHEJUAN ZHANG

    (Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China)

  • ZHUO SUN

    (Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China)

Abstract

Electric double layer capacitors (EDLCs) with carbon nanotubes (CNTs) film electrodes and gel polymer/polyacid electrolytes have been demonstrated. The low-cost CNTs film is directly grown onCu–Nicurrent collector by low pressure and low temperature thermal chemical vapor deposition. The electrolytes consist of gel polymer poly(vinyl alcohol), polyacid phosphomolybdic acid (PMA) with different concentrations from 10 to 40 wt.% andKCl. The electrochemical measurement of the EDLCs by cyclic voltammetry and chronopotentiometry shows that gel polymer/polyacid electrolytes can work stable at a wide potential range of -1.5 to 1.5 V and EDLCs with electrolytes containing 30 wt.% PMA exhibit optimum capacitive behavior with 8.09 F/g specific capacitance.

Suggested Citation

  • Yanping Zhang & Likun Pan & Yang Gao & Zhejuan Zhang & Zhuo Sun, 2008. "Electric Double Layer Capacitors With Carbon Nanotubes Electrodes And Gel Polymer/Polyacid Electrolytes," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 15(03), pages 245-248.
    • Handle: RePEc:wsi:srlxxx:v:15:y:2008:i:03:n:s0218625x08011317
    DOI: 10.1142/S0218625X08011317
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