The preparation of PANI/CA composite electrode material for supercapacitors and its electrochemical performance |
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| Authors: | Hongfang An Ying Wang Xianyou Wang Na Li Liping Zheng |
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| Institution: | (1) School of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Minister of Education, Xiangtan University, Xiangtan, Hunan, 411105, China;(2) School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, Hubei, 430073, China; |
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| Abstract: | Polyaniline (PANI)/carbon aerogel (CA) composite electrode materials were prepared by chemical oxidation polymerization. The
morphology of PANI/CA composite was examined by scanning electron microscopy. The results showed that PANI was uniformly deposited
onto the surface of porous CA and filled big inner pores of the CA. Electrochemical performance of the composite electrode
was studied by cyclic voltammograms and galvanostatic charge/discharge measurements. The results indicated that the PANI/CA
composite electrode had much better electrochemical performance, high reversibility, and high charge/discharge properties
than CA. Moreover, the results based on cyclic voltammograms showed that the composite material has a high specific capacitance
of 710.7 F g−1, while the capacitance of CA electrode was only 143.8 F g−1. Besides, the supercapacitor using the PANI/CA composite as electrode active material showed a stable cycle life in the potential
range of −0.2–0.8 V. |
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