Journal
VACUUM
Volume 158, Issue -, Pages 206-214Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2018.09.057
Keywords
Mn3O4 thin film; SILAR; Optical properties; Potentiostatic charge-discharge; Electrochemical impedance spectroscopy
Funding
- TETFUND [TETF/DESS/UNN/NSUKKA/STI/VOL.I/B4.33]
- US Army Research Laboratory-Broad Agency Announcement (BAA) [W911NF-12-1-0588]
- Oilserv Group of Companies
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In this study, successive ionic layer adsorption and reactions (SILAR), a simple and cost-effective method was used to successfully synthesize Mn3O4 thin film electrodes on fluorine-doped tin oxide (PTO) and stainless steel (ss) substrates. The synthesized films were characterized using scanning electron microscopy (SEM), X-Ray diffraction (XRD) and UV-vis-NIR spectroscopy. The electrochemical energy storage behavior of the electrodes was evaluated using cyclic voltammetery (CV), potentiostatic charge-discharge (c-d) technique and electrochemical impedance spectroscopy (EIS) in 1M solution of Na2SO4 electrolyte. The highest specific capacitance of 786.2Fg(-1) was obtained at a scan rate of 5 mVs(-1) for the 80-cycle film electrode. The SILAR deposited Mn3O4 thin film electrodes is a promising material for pseudocapacitor application based on the electrochemical properties obtained.
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