Journal of Electrochemical Science and Technology

The Korean Electrochemical Society (한국전기화학회)
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Supercapacitive Properties of Polyaniline Electrode Electrodeposited on Carbon Nanotube/Acetonitrile-Butadiene Rubber as a Flexible Current Collector

  • Park, Jee-Hye (Division of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Kim, Sang-Hern (Division of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Ko, Jang-Myoun (Division of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Lee, Young-Gi (Research Team of Power Control Devices, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Kim, Kwang-Man (Research Team of Power Control Devices, Electronics and Telecommunications Research Institute (ETRI))
  • Received : 2011.12.08
  • Accepted : 2011.12.27
  • Published : 2011.12.31
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Abstract

Flexible sheets consisting of acrylonitrile-butadiene rubber (NBR) and carbon nanotube (CNT) are newly prepared varying the composition (CNT 20-25 wt.%) for use as a current collector of supercapacitor electrodes. The as-prepared CNT/NBR is electrodeposited with aniline using potentiodynamic cyclic voltammetry to yield a polyaniline (PANI)/CNT/NBR composite electrode. It is confirmed that the electrical conductivity of CNT/NBR current collector can be enhanced as the content of CNT increases. Cyclic voltammetry result shows that the sample of PANI/CNT(25 wt.%)/NBR composite achieves a maximum specific capacitance ($134.9\;F\;g^{-1}$) at $5\;mV\;s^{-1}$. Such supercapacitor application is possibly originated from the synergistic effects consisting of higher polarity of nitrile groups in NBR, conducting pathway of CNT, and electroactive property of PANI.

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