The electrochemical properties of nanocomposite films obtained by chemical in situ polymerization of aniline and carbon nanostructures
PBN-AR
Instytucja
Wydział Biologiczno-Chemiczny (Uniwersytet w Białymstoku)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
ChemPhysChem
ISSN
1439-4235
EISSN
1439-7641
Wydawca
DOI
URL
Rok publikacji
2013
Numer zeszytu
1
Strony od-do
116-124
Numer tomu
14
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
1,2
Streszczenia
Język
angielski
Treść
Interactions between the π bonds in the aromatic rings of polyaniline (PANI) with carbon nanostructures (CNs) facilitate charge transfer between the two components. Different types of phenyleneamine-terminated CNs, including carbon nano-onions (CNOs) and single-walled and multi-walled carbon nanotubes (SWNTs and MWNTs, respectively), were prepared as templates, and the CN/PANI nanocomposites were easily prepared with uniform core–shell structures. By varying the ratio of the aniline monomers relative to the CNs in the in situ chemical polymerization process, the thickness of the PANI layers was effectively controlled. The morphological and electrical properties of the nanocomposite were determined and compared. The thickness and structure of the PANI films on the CNs were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and infrared spectroscopy. TEM and SEM revealed that the composite films consisted of nanoporous networks of CNs coated with polymeric aniline. The electrochemical properties of the composites were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. These studies showed that the CN/PANI composite films had lower resistance than pure polymeric films of PANI, and the presence of CNs much improved the mechanical stability. The specific electrochemical capacitance of the CNO/PANI composite films was significantly larger than for pure PANI.
Cechy publikacji
publikacja naukowa oryginalna
Inne
System-identifier
000032080
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