Capacitive properties of promising energy storage material based on thiophene containing perylenediimide polymer

Tuğba Ören Varol, Sebahat Topal, Özgül Haklı, Esma Sezer*, Ülkü Anık*, Turan Öztürk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this study, electropolymerization of pre-synthesized N,N′-di-[3-[2-(3-thienyl)ethyl] phenyl] perylene-3,4,9,10-bis(dicarboximide) (ThPDITh) was performed on Au button electrode and the properties of the resultant polymer P(ThPDITh) were investigated by electrochemical techniques. Effect of the polymerization charge on the redox behaviors of the polymer film was investigated by cyclic voltammetry (CV) and the polymer film was further characterized by electrochemical impedance spectroscopy (EIS) measurements. Corresponding electrical equivalent circuit was applied to the experimental data to explain the electrochemical phenomenon on the interface of the Au/P(ThPDITh). In order to obtain information on the energy storage properties of P(ThPDITh) as a pseudo-capacitive electrode material, important cell characteristics, such as redox process in anodic and cathodic potential ranges, stability of galvanostatic charge–discharge (GCD) curves, coulombic efficiency, capacitance, energy and power density values were determined. Capacitance values, obtained through different measurements (CV, EIS and GCD) are all in good agreement with each other. All the results suggested that P(ThPDITh) is capable of undergoing multiple reversible redox processes, and a good candidate for improving the capacitance and energy density of electrode material while still offering high power capability.

Original languageEnglish
Article numberapp50234
JournalJournal of Applied Polymer Science
Volume138
Issue number16
DOIs
Publication statusPublished - 20 Apr 2021

Bibliographical note

Publisher Copyright:
© 2020 Wiley Periodicals LLC.

Funding

We thank Higher Education Council of Turkey (YOK) and TUBITAK for grants to Sebahat Topal (PhD, 100/2000 YOK and BIDEP TUBİTAK).

FundersFunder number
BIDEP TUBİTAK
Higher Education Council of Turkey
YOK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

    Keywords

    • conducting polymer
    • electropolymerization
    • energy storage
    • perylenediimide
    • pseudocapacitor

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