Synthesis of polythiophene with zigzag morphology on pencil graphite electrode and investigation of energy storage properties in supercapacitors

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YAZAR AYDOĞAN S., ARVAS M. B., GÜRKAN K.

Journal of Materials Science, vol.59, no.24, pp.10936-10952, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 24
  • Publication Date: 2024
  • Doi Number: 10.1007/s10853-024-09808-w
  • Journal Name: Journal of Materials Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, MEDLINE, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Page Numbers: pp.10936-10952
  • Istanbul University Affiliated: Yes

Abstract

Herein, polythiophene-based supercapacitor electrode materials were successfully synthesized by the electropolymerization method. Thymol blue, bromothymol blue, and bromophenol blue were added to the polythiophene polymerization medium as dopants, and the energy storage properties of the thiophene-based electrode material were investigated. Polythiophene/bromothymol blue (PTh/BTB) gave the polythiophene an interesting zigzag morphology, which is unique in the literature (specific surface area of PTh/BTB and PTh: 32.629 m2 g−1 and 13.812 m2 g−1). The electrode performance of PTh/BTB shows a maximum specific capacitance of 443.5 F g−1 at 5 mV s−1. The symmetrical supercapacitor achieved a maximum energy density of 9.7 Wh kg−1 and a maximum power density of 5000 W kg−1. The capacitance retention value exhibited a steady state of 79.2% up to 10,000 cycles. Graphical abstract: (Figure presented.)