Pseudocapacitive sodium-ion storage in one-dimensionally structured anatase TiO2 nanofiber anode for high performance sodium-ion batteries

Eroglu O., Kızıl H.

Journal of Physics and Chemistry of Solids, vol.178, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 178
  • Publication Date: 2023
  • Doi Number: 10.1016/j.jpcs.2023.111352
  • Journal Name: Journal of Physics and Chemistry of Solids
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, INSPEC, Metadex
  • Keywords: Anode titania nanofiber, Nanofiber electrode, Pseudocapacitive, Sodium-ion battery, TiO2 anode
  • Istanbul Technical University Affiliated: Yes


Nanofibers provide high surface area to volume ratio, vectoral conduction, fast ionic diffusion, and short pathways for sodium ions. Titania nanofibers exhibit excellent electrochemical performance when used for sodium-ion storage. One-dimensional titania nanofiber was synthesized by an electrospinning process as an anode material for high capacity sodium-ion batteries. The electrochemical kinetics of titania nanofiber for sodium-ion storage were examined. Titania nanofiber exhibited pseudocapacitive capacitive properties with high rate performance, giving capacity of 97 mA h g−1 after 1000 cycles with a current density of 1000 mA g−1. Even when current rate returned to the initial current density of 50 mA g−1, titania nanofiber electrode capacity climbed to 206 mA h g−1 again without capacity fading, which indicated good rate performance, superior sodium insertion/extraction reaction, and high reversible capacity.