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Nanocomposite Films Obtained by Electrochemical Codeposition of Conducting Polymers and Carbon Nanotubes
Author(s) -
Brânzoi Viorel,
Pilan Luisa,
Brânzoi Florina
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804449
Subject(s) - carbon nanotube , materials science , polypyrrole , cyclic voltammetry , nanocomposite , dielectric spectroscopy , conductive polymer , scanning electron microscope , electrochemistry , dopant , polymer , chemical engineering , composite number , nanotechnology , composite material , doping , electrode , chemistry , polymerization , optoelectronics , engineering
The electrochemical growth of carbon nanotubes (CNTs) – conducting polymer composites offers the ability to produce three‐dimensional nanostructured films that combine the redox pseudo‐capacitive charge storage mechanism of conducting polymers with the high surface area and conductivity of CNTs [1–3]. In this paper we report the electropolymerization and characterization of polypyrrole films (PPy) doped with poly ( m ‐aminobenzenesulfonic acid) (PABS) functionalized single‐walled carbon nanotubes (SWCNTs) (PPy/CNTs). The negatively charged CNTs served as anionic dopant during the electropolymerization to synthesize PPy/CNTs composite films. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and scanning electron microscopy (SEM) were used to investigate the electrochemical properties of the composite films.