Mn3O4–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 Mn3O4 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.
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24 June 2015
SOLID STATE PHYSICS: Proceedings of the 59th DAE Solid State Physics Symposium 2014
16–20 December 2014
Tamilnadu, India
Research Article|
June 24 2015
Nanofiber of Mn3O4: Fabrication and application as supercapacitor electrode
Jai Bhagwan;
Jai Bhagwan
1Energy storage laboratory, Department of Applied Science & Engineering,
IIT Roorkee Saharanpur Campus
Saharanpur-247001, India
2Centre of Nanotechnology,
IIT Roorkee
, Roorkee-247667, India
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K. L. Yadav;
K. L. Yadav
2Centre of Nanotechnology,
IIT Roorkee
, Roorkee-247667, India
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Yogesh Sharma
Yogesh Sharma
*
1Energy storage laboratory, Department of Applied Science & Engineering,
IIT Roorkee Saharanpur Campus
Saharanpur-247001, India
2Centre of Nanotechnology,
IIT Roorkee
, Roorkee-247667, India
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*
E-mail:[email protected]
AIP Conf. Proc. 1665, 050188 (2015)
Citation
Jai Bhagwan, K. L. Yadav, Yogesh Sharma; Nanofiber of Mn3O4: Fabrication and application as supercapacitor electrode. AIP Conf. Proc. 24 June 2015; 1665 (1): 050188. https://doi.org/10.1063/1.4917829
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