Electrochemical performance of polyaniline/ZnO composite and bilayer electrodes for high-power supercapacitors

BULGURCUOĞLU A. E.

International Journal of Global Warming, cilt.38, sa.3, ss.288-301, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 3
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1504/ijgw.2026.152342
  • Dergi Adı: International Journal of Global Warming
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
  • Sayfa Sayıları: ss.288-301
  • Anahtar Kelimeler: bilayer, PANI, polyaniline, supercapacitor, zinc oxide, ZnO
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This study investigates the electrochemical performance of polyaniline (PANI), zinc oxide (ZnO), and their bilayer and composite electrodes for supercapacitors. Cyclic voltammetry, galvanostatic charge-discharge, and Ragone plot analyses were used to evaluate energy and power characteristics. PANI exhibits high energy density but limited stability, while ZnO maintains performance at high power densities. The PANI/ZnO bilayer shows moderate improvement; however, the PANI/ZnO composite achieves the highest energy density of 6.39 Wh kg-1 at 0.27 W kg-1 and retains nearly 100% capacitance after 1,500 cycles, demonstrating superior stability and efficiency.