Electrochemical synthesis and characterization of nanocomposites based on poly(3,4-ethylenedioxythiophene) and functionalized carbon nanotubes
PBN-AR
Instytucja
Wydział Chemiczny (Politechnika Gdańska)
Informacje podstawowe
Główny język publikacji
ENG
Czasopismo
SYNTHETIC METALS
ISSN
0379-6779
EISSN
Wydawca
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
31-43
Numer tomu
212
Identyfikator DOI
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Autorzy
Słowa kluczowe
CARBON NANOTUBES
ELECTROCHEMICAL POLYMERIZATION
NANOCOMPOSITE
POLY(3,4-ETHYLENEDIOXYTHIOpHENE)
SUPERCAPACITORS
Streszczenia
Język
Treść
This work is focused on new composite materials consisting of poly(3,4-ethylenedioxythiophene) (pEDOT) and functionalized multi-walled carbon nanotubes synthesized electrochemically. Three types of composites were synthesized: the first one containing carbon nanotubes with carboxyl groups (covalent functionalization), the second one containing oxidized carbon nanotubes ox-MWCNTs (with different oxygen-rich polar groups) (covalent functionalization) and the third one containing carbon nanotubes dispersed using surfactant (non-covalent functionalization). The presence of oxygen moieties attached to carbon nanotubes decreases their hydrophobicity and helps to suspend them more uniformly in a solution used for electrosynthesis than the surfactant addition. Homogenous dispersion of carbon nanotubes and their amount in the synthesis solution is crucial for reproducibility and electrochemical properties of the composite layers. Thin nanocomposite films were tested electrochemically for supercapacitor application. Detailed surface investigation of the electrode layers by X-ray photoelectron spectroscopy shows differences in the chemical composition between the composites and the pure polymer. Moreover, electrochemical results show that the presence of carbon nanotubes with carboxyl groups in the polymer matrix may double the capacitance values compared to pure pEDOT.
Inne
System-identifier
134595
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