Coin cell constructed symmetric supercapacitor based on binder-free antimony trioxide (Sb2O3) in heteroatom doped carbon nanofibers

ŞAHİNTÜRK U., Üstün B., Aydın H., Koç S. N., KURTAN Ü.

Journal of Power Sources, cilt.613, 2024 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 613
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.jpowsour.2024.234882
  • Dergi Adı: Journal of Power Sources
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Anahtar Kelimeler: Antimony trioxide (Sb2O3), Carbon nanofiber, Symmetric supercapacitor
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

Antimony trioxide nanoparticles are synthesized in binder-free, self-standing, and nitrogen and sulfur as heteroatoms doped carbon nanofibers (Sb2O3-NSCFs). Two-step method including electrospinning and heat treatment is utilized to convert antimony species to nano-sized antimony nanoparticles. Structural, morphological, chemical composition, and surface area/pore size analysis of the materials are investigated using a series of analysis. The electrochemical performance of the materials is evaluated using both three- and two-electrode systems in basic electrolyte. The Sb2O3-NSCFs electrode shows a specific capacitance of 354.4 F/g at 1 A/g and the charge storage mechanism is investigated. The constructed coin-cell symmetric supercapacitor (Sb2O3-NSCF//Sb2O3-NSCF) exhibits a specific energy of 9.2 Wh/kg at 300 W/kg and also retains its capacitance of 94.4 % over 10 000 cycles.