Polyaniline/MnO2/porous carbon nanofiber electrodes for supercapacitors

Mahmut Dirican, Meltem Yanilmaz, Abdullah M. Asiri*, Xiangwu Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

Free-standing polyaniline@MnO2@porous carbon nanofiber (PANI@MnO2@PCNF) supercapacitor electrodes were fabricated through the electrodeposition of MnO2 nanoparticles onto electrospun PCNFs and subsequent chemical polymerization of aniline on the MnO2@PCNF composite. The introduced PANI@MnO2@PCNF electrodes combined the high pseudo capacitance of both MnO2 nanoparticles and conducting PANI polymer with the good cycling stability of PCNFs, and hence they exhibited high capacitance retention (91%) after 1000 cycles with high capacitance of 289 F/g. In order to further improve the performance, asymmetric cell configuration was employed by using PANI@MnO2@PCNF and PCNF electrodes. Electrochemical test results showed that asymmetric cell configuration led to improved energy density (119 Wh/kg) as well as power density (322 W/kg). It is, therefore, demonstrated that binder-free PANI@MnO2@PCNF composites are promising electrode candidate for high-performance supercapacitor applications.

Original languageEnglish
Article number113995
JournalJournal of Electroanalytical Chemistry
Volume861
DOIs
Publication statusPublished - 15 Mar 2020

Bibliographical note

Publisher Copyright:
© 2020

Funding

This research was supported by Research Fund of the Istanbul Technical University . Project Number: MGA2017-40754 .

FundersFunder number
Istanbul Teknik ÜniversitesiMGA2017-40754

    Keywords

    • MnO nanoparticles
    • Polyaniline
    • Porous carbon nanofiber
    • Supercapacitor

    Fingerprint

    Dive into the research topics of 'Polyaniline/MnO2/porous carbon nanofiber electrodes for supercapacitors'. Together they form a unique fingerprint.

    Cite this