Fabrication of transition-metal-doped polypyrrole/multiwalled carbon nanotubes nanocomposites for supercapacitor applications

Copper chloride (CuCl2)‐doped polypyrrole (PPy)/multiwalled carbon nanotube (MWCNTs) nanocomposites were synthesized by an in situ oxidative polymerization method with ammonium persulfate as the oxidant in HCl medium and investigated as electrode materials for supercapacitors. The interaction of met...

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Bibliographic Details
Published in:Journal of applied polymer science 2013-10, Vol.130 (1), p.554-562
Main Authors: Dhibar, Saptarshi, Sahoo, Sumanta, Das, C. K.
Format: Article
Language:English
Subjects:
Applied sciences
Capacitors
Capacitors. Resistors. Filters
coatings
Composites
conducting polymers
Electrical engineering. Electrical power engineering
electrochemistry
Exact sciences and technology
Forms of application and semi-finished materials
Materials science
Multi wall carbon nanotubes
Nanocomposites
Polymer industry, paints, wood
Polymerization
Polymers
Polypyrroles
Reproduction
Scanning electron microscopy
Supercapacitors
Technology of polymers
Various equipment and components
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Summary:Copper chloride (CuCl2)‐doped polypyrrole (PPy)/multiwalled carbon nanotube (MWCNTs) nanocomposites were synthesized by an in situ oxidative polymerization method with ammonium persulfate as the oxidant in HCl medium and investigated as electrode materials for supercapacitors. The interaction of metal cations (Cu2+ ions) with PPy was confirmed by Fourier transform infrared spectroscopic analysis. The morphology of the nanocomposites was characterized by field emission scanning electron microscopy and high‐resolution transmission electron microscopy. Electrochemical characterizations of the composites materials were carried out by a three‐electrode probe method, where platinum and a saturated standard calomel electrode were used as the counter and reference electrodes, respectively. A 1M KCl solution was used as the electrolyte for all of the electrochemical characterizations. The transition‐metal‐ion doping enhanced the electrochemical properties of the conducting polymer. Among all of the composites, the CuCl2‐doped PPy/MWCNTs showed the highest specific capacitance value of 312 F/g at a 10 mV/s scan rate. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
ISSN:0021-8995
1097-4628
DOI:10.1002/app.39176