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Acid blue AS doped polypyrrole (PPy/AS) nanomaterials with different morphologies as electrode materials for supercapacitors
作者:Yunjiao Wang, Chao Yang, Peng Liu
關鍵字:Acid blue AS, Morpholog,yElectrode
論文來源:期刊
具體來源:Chemical Engineering Journal
發表時間:2008年

Accepted Man
The polypyrrole (PPy) nanomaterials with different morphologies were prepared via
the chemical oxidative polymerization of pyrrole in the presence of acid blue AS (AS)
as the dopant and surfactant. Increasing of the feeding ratio of AS, the morphology of
the resultant acid blue AS doped polypyrrole (PPy/AS) nanomaterials changed from
nanoparticles to clusters of nanofibers and nanoparticles, then nanorods, compared
with the microsized PPy particles prepared without AS. The PPy/AS with the
morphology of the clusters of nanofibers and nanoparticles (S-3) showed the highest
electrical conductivity of 20 S/cm. When the PPy/AS samples was used as the
electrode materials for the supercapacitors, two redox processes were observed in the
cyclic voltammograms (CV) of all the PPy/AS electrodes, corresponding to the redox
couples of AS. The highest specific capacitance was found to be 427 F/g with the
PPy/AS S-3 sample.

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