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- Title
Galvanostatically electroplated MnO nanoplate-type electrode for potential electrochemical pseudocapacitor application.
- Authors
Ingole, S.; Navale, S.; Navale, Y.; Dhole, I.; Mane, R.; Stadler, F.; Patil, V.
- Abstract
A manganese oxide (MnO) nanoplate-type electrode has been prepared using galvanostatic electrodeposition method with an aqueous manganese sulfate solution and characterized for its structural, morphological, compositional, and surface wettability studies and afterward envisaged in pseudocapacitor applications. The MnO, evidenced through Raman and X-ray photoelectron spectroscopy analysis, electrode composed of nanoplate-type surface morphology is hydrophilic and amorphous in nature. The electrochemical properties of MnO are examined using cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy measurements in NaSO, NaOH, and KOH electrolytes, which demonstrate the pseudocapacitive signature with higher performance in NaSO electrolyte than the others. A maximum specific capacitance of 804 F g at a scan rate of 5 mV s within −0.3-1.0 V potential range, with 84% retention after 1000 cycles, in 1 M NaSO is evidenced.
- Subjects
ELECTROPLATING; MANGANESE oxides; ELECTROLYTIC capacitors; GALVANOSTAT; ELECTROCHEMICAL electrodes
- Publication
Journal of Solid State Electrochemistry, 2017, Vol 21, Issue 6, p1817
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-017-3557-8