Effect of Redox Additive Electrolyte on the Electrochemical Performance of MnO2 Nanorods for Supercapacitor Application
S. Arunpandiyan1, C. Selvameenakshi2, S. Ezhil Arasi3, P. Devendran4, A. Arivarasan5
1S. Arunpandiyan, Department of Physics, Kalasalingam Academy of Research and Higher Education, Krishnankoil (Tamil Nadu), India.
2C. Selvameenakshi, Department of Physics, Kalasalingam Academy of Research and Higher Education, Krishnankoil (Tamil Nadu), India.
3S. Ezhil Arasi, Department of Physics, Kalasalingam Academy of Research and Higher Education, Krishnankoil (Tamil Nadu), India.
4P. Devendran, Department of Physics, Kalasalingam Academy of Research and Higher Education, Krishnankoil (Tamil Nadu), India.
5A. Arivarasan, Department of Physics, Kalasalingam Academy of Research and Higher Education, Krishnankoil (Tamil Nadu), India.
Manuscript received on 03 December 2019 | Revised Manuscript received on 15 December 2019 | Manuscript Published on 30 December 2019 | PP: 286-290 | Volume-9 Issue-2S2 December 2019 | Retrieval Number: B12021292S219/2019©BEIESP | DOI: 10.35940/ijitee.B1202.1292S219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Pure MnO2 nanorods were synthesized by hydrothermal method and characterized by different techniques to analyze their crystalline nature, surface morphology, functional groups, and optical properties. XRD analysis confirms that the prepared nanorods possess a tetragonal crystalline structure. The occurrence of nanorods was confirmed by SEM analysis and its elemental composition was studied by elemental mapping. MnO2 nanorods modified working electrode was fabricated by the deposition of prepared nanorods on nickel foil. Electrochemical performance of the MnO2 nanorods modified working electrode was studied using redox additive based electrolyte containing 0.1M K4 [Fe(CN)6 ] in 1M KOH solution. The maximum specific capacitance of the prepared nanorods in 1M KOH electrolyte was 89 Fg-1 and it is greatly enhanced by the addition of 0.1M K4 [Fe(CN)6 ] redox additives (634 Fg-1 ).
Keywords: MnO2 Nanorods, Supercapacitor, Redox-Additive Electrolyte.
Scope of the Article: Bio-Science and Bio-Technology