Electrochemical supercapacitors of PANI/MWCNT, PEDOT/MWCNT and P(ANI-co-EDOT)/MWCNT nanocomposites

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Küçük Resim

Tarih

2019

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Springer

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study, the composite formations of polyaniline (PANI)/multi-walled carbon nanotube (MWCNT), poly(3,4-ethylenedioxythiophene) (PEDOT)/MWCNT, and poly(aniline-co-3,4-ethylenedioxythiophene) (P(ANI-co-EDOT))/MWCNT were synthesized on glassy carbon electrode by cyclic voltammetry (CV) method. The composite films were characterized by CV, Fourier transform infrared-attenuated reflection spectroscopy, Raman spectroscopy, scanning electron microscopy-energy-dispersive X-ray analysis, thermogravimetric analysis-differential thermal analysis, Brunauer-Emmett-Teller surface analysis, transmission electron microscopy and electrochemical impedance spectroscopy (EIS). The modified electrodes were characterized by CV, galvanostatic charge/discharge and EIS analysis to measure the capacitance, energy and power density values. The highest specific capacitance was obtained as C-sp=590.71F/g for PANI/MWCNT at a scan rate of 50 mV/s by CV method. The PANI/MWCNT composites are promising electrode materials for high-performance electrical energy storage devices compared to PEDOT/MWCNT or P(ANI-co-EDOT)/MWCNT. The stability tests were also taken for nanocomposite films. PEDOT/MWCNT composites present excellent long cycle life with 97.44% specific capacitance retained after 500 cycles.

Açıklama

Anahtar Kelimeler

Composites, Nanostructures, Energy storage, P(ANI-co-EDOT)/MWCNT, PANI/MWCNT, PEDOT/MWCNT, Capacitance Properties, Conducting Polymers, Electrode Material, Mesoporous Carbon, Polyaniline, Composite, Morphology, Stability, Poly(3,4-Ethylenedioxythiophene), Impedance

Kaynak

Polymer Bulletin

WoS Q Değeri

Q2

Scopus Q Değeri

Q2

Cilt

76

Sayı

6

Künye