Hydrothermal synthesis of polypyrrole/dye-functionalized carbon cloth electrode for wide potential window supercapacitor

ARVAS M. B.

Synthetic Metals, cilt.293, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 293
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.synthmet.2022.117275
  • Dergi Adı: Synthetic Metals
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Carbon cloth, Energy density, Energy storage, Polypyrrole, Supercapacitor
  • İstanbul Üniversitesi Adresli: Hayır

Özet

© 2023 Elsevier B.V.Supercapacitors are a new generation of energy storage systems, but their low energy densities need to be improved depending on their capacitance and operating voltage range. In this study, the effect of dyes such as hydroxy naphthol blue (HNB), methyl orange (MO) and thymol blue (TB) on the electrochemical performance of polypyrrole coated on carbon cloth as electrode material in supercapacitors was analysed. The results of this study reveal that dye-functionalized polypyrrole shows higher specific capacitance than forms of polypyrrole. Among all the three electrode materials PPy/HNB electrode showed highest capacity of 108.0 F g−1 at the current density of 0.4 A g−1. Additionally, a maximum energy density of 135.6 Wh kg−1 and a maximum power density of 40.0 kW kg−1 were attained by the PPy/HNB symmetric supercapacitor. The device exhibits stability for 5000 cycles and a 91.06% capacitance retention.