Nanofiber of Mn 3 O 4: Fabrication and application as supercapacitor electrode

Jai Bhagwan, K. L. Yadav, Yogesh Sharma

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Mn 3 O 4 -nanofiber with high aspect ratio is prepared by a simple electrospinning process. The thermal, structural and morphological characterizations are carried out by TGA, XRD and FESEM, respectively. To assess the property of nanofiber for the use in supercapacitors, cyclic voltammetry (CV) and galvanostatic charging-discharging (GCD) are performed in 2M KOH electrolyte with the potential window ranging from +0.42V to -0.45V. Effect of polymer concentration and electric field intensity on the diameter of as-spun nanofiber was studied. Further, appropriate heating rate was used for sintering to obtain aligned nanofiber. High specific capacitance of 150(±5) F g -1 is obtained by Mn 3 O 4 nanofibers. The rate performance is also found to be good. This improved performance in terms of high specific capacitance and rate capability is ascribed to the nanofabric morphology which provides more active sites and easy access path for ions/electrons.

Original languageEnglish
Title of host publicationSolid State Physics
Subtitle of host publicationProceedings of the 59th DAE Solid State Physics Symposium 2014
EditorsR. Chitra, N. K. Sahoo, Dibyendu Bhattacharyya
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413108
DOIs
StatePublished - 24 Jun 2015
Event59th DAE Solid State Physics Symposium, SSPS 2014 - Vellore, Tamilnadu, India
Duration: 16 Dec 201420 Dec 2014

Publication series

NameAIP Conference Proceedings
Volume1665
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference59th DAE Solid State Physics Symposium, SSPS 2014
Country/TerritoryIndia
CityVellore, Tamilnadu
Period16/12/1420/12/14

Keywords

  • Electrospinning
  • Nanofiber
  • Specific capacitance
  • Supercapacitor

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