Karafan Journal

Karafan Journal

Fabrication of supercapacitor electrode using flexible carbon felt substrate and cobalt oxide

Document Type : Original Article

Author
Department of Engineering Science, Faculty of Engineering Sciences, Technical and Vocational University (TVU), Tehran, Iran.
Abstract
The energy crisis for mankind has made energy storage devices a daily issue for researchers. Supercapacitors are one of the energy storage tools, the further development of which is highly dependent on the electrode used in the positive and negative poles. Availability, cheapness and good efficiency in energy storage are the expected features of these electrodes. For this purpose, in this research, we have synthesized Co3O4/CF electrode using hydrothermal method for use in supercapacitor electrodes. . We used xrd, FESEM, mapping to prove the synthesis and to check the crystal structure and morphology of the nanoparticle. In further investigations, EIS showed CV.GCD and excellent specific capacity stability of 2719 F/g along with 84% stability after 2000 consecutive current-voltage cycles. Also, compared to similar studies, Carbon felt can be an efficient, cheap and flexible electrode. Modification of carbon felt using Co3O4 reduced the resistance caused by charge transfer and ion transfer and increased the conductivity.
Keywords
Subjects

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Volume 23, Issue 1
Technical and Engineering
Spring 2026
Pages 672-683

  • Receive Date 23 October 2024
  • Revise Date 22 November 2024
  • Accept Date 20 October 2025