Ordered Macroporous Carbon/Polyaniline Nanocomposites as Electrode Materials for Supercapacitors

Abstract:

Polyaniline (PANI) and ordered macroporous carbon (C80) composites were prepared via a simple and speedy polymerization of aniline in the presence of C80. The effect of PANI content on the electrochemical properties was studied in detail. The morphologies were manifested through field emission scanning electron microscopy (FE-SEM), and the electrochemical properties were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge and impedance in 1 mol/L H₂SO₄. The results indicate that the polymerization of aniline occurred in the pores of carbon, and as the aniline content increased, more polyaniline was synthesized in the pores. When the PANI content was 43 wt%, the specific capacitance of the composite was as high as 368.7 F/g at a current density of 0.06 A/g, which was 2.6 times higher than that of the host C80 (140 F/g).

• Periodical: Materials Science Forum (Volume 722)
• Pages: 25-30
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.722.25
• Online since: June 2012
• Authors: Su Yan Qiao, Li Zhen Fan
• Keywords: Nanocomposite, Polyaniline, Porous Carbon, Super-Capacitor (SC)

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