A Novel Dioxythiophene Based Conducting Polymer as Electrode Material for Supercapacitor Application


Ersozoglu M. G. , Gilsing H., Gencturk A., Sarac A. S.

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, vol.14, no.10, pp.9504-9519, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 10
  • Publication Date: 2019
  • Doi Number: 10.20964/2019.10.35
  • Title of Journal : INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
  • Page Numbers: pp.9504-9519

Abstract

The electrochemical polymerization of the functionalized 3,4-propylenedioxythiophene derivative ProDOT-EtO-BZA 1 bearing an oligoether spacer with aromatic carboxylic group was achieved on platinum (Pt) wire and screen printed carbon electrode (SPCE), respectively. The structure, morphology and electrochemical properties of the PProDOT-EtO-BZA films were analyzed by FT-IR, SEM, AFM and electrochemical impedance spectroscopy (EIS), respectively. Furthermore, poly(3,4-propylenedioxythiophene) (PProDOT), the 2,2-dibenzyl derivative (PDBProDOT) and the 2,2-diethyl derivative (PProDOT-Et-2) were electrodeposited onto SPCE via cyclic voltammetry (CV) for comparison of the capacitance performance of these PProDOTs in organic electrolytes to the corresponding data of PProDOT-EtO-BZA. CV and EIS measurements of the PProDOT-EtO-BZA revealed pseudo-capacitive behavior with faradaic reactions. Specific and low frequency capacitance (20.8 mF/cm(2) and 8.5 mF/cm(2), respectively) of the PProDOT-EtO-BZA were almost two times higher than those of the other PProDOTs. These results suggest that PProDOT-EtO-BZA films can be utilized as electrode material for supercapacitors.