کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
150821 456457 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acid blue AS doped polypyrrole (PPy/AS) nanomaterials with different morphologies as electrode materials for supercapacitors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Acid blue AS doped polypyrrole (PPy/AS) nanomaterials with different morphologies as electrode materials for supercapacitors
چکیده انگلیسی

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.


• Polypyrrole nanomaterials were prepared with acid blue AS as dopant and surfactant.
• They were nanoparticles, clusters of nanofibers and nanoparticles, and nanorods.
• The clusters of nanofibers and nanoparticles (S-3) showed the highest conductivity.
• S-3 sample exhibited the highest specific capacitance of 427 F/g.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 172, Issues 2–3, 15 August 2011, Pages 1137–1144
نویسندگان
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