Ali, Gomaa A. M. and M. M., Yusoff and K. F., Chong (2015) Electrochemical Properties of Electrodeposited MnO2 Nanoparticles. Advanced Materials Research, 1113. pp. 550-553. ISSN 1022-6680 (print), 1662-8985 (online). (Published)
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Abstract
The present study shows the electrodeposition of MnO2 from KMnO solution and its electrochemical studies. XRD and FESEM analyses showed the electrodeposited MnO2 had nano-sized particle of 18 nm. The electrochemical properties had been investigated using the cyclic voltammetry, galvanostatic charge/discharge and impedance techniques in 1 M Na as electrolyte. The electrodeposited MnO showed good electrochemical behavior with high specific capacitance value of ca. 326 F g2-1. Moreover, it showed high capacitance stability of 84% over 1750 charge/discharge cycles as well as high columbic efficiency of 94 %. Impedance spectra showed low solution and charge transfer resistances, an indication of the conductive nature for the electrodeposited film.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Cyclic Voltammetry, Electrochemical, Electrodeposition, MnO2 |
| Subjects: | Q Science > QD Chemistry |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 16 Dec 2014 04:44 |
| Last Modified: | 26 Jul 2018 03:29 |
| URI: | http://umpir.ump.edu.my/id/eprint/7776 |
| Download Statistic: | View Download Statistics |
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