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Materials 2014, 7(1), 265-274; doi:10.3390/ma7010265
Article

Electrodeposition of Manganese-Nickel Oxide Films on a Graphite Sheet for Electrochemical Capacitor Applications

1
, 2
 and 1,*
Received: 15 November 2013; in revised form: 26 December 2013 / Accepted: 30 December 2013 / Published: 9 January 2014
(This article belongs to the Section Materials for Energy Applications)
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Abstract: Manganese-nickel (Mn-Ni) oxide films were electrodeposited on a graphite sheet in a bath consisting of manganese acetate and nickel chloride, and the structural, morphological, and electrochemical properties of these films were investigated. The electrodeposited Mn-Ni oxide films had porous structures covered with nanofibers. The X-ray diffractometer pattern revealed the presence of separate manganese oxide (g-MnO2) and nickel oxide (NiO) in the films. The electrodeposited Mn-Ni oxide electrode exhibited a specific capacitance of 424 F/g in Na2SO4 electrolyte. This electrode maintained 86% of its initial specific capacitance over 2000 cycles of the charge-discharge operation, showing good cycling stability.
Keywords: Mn-Ni oxide films; electrodeposition; supercapacitor; specific capacitance; cycling stability Mn-Ni oxide films; electrodeposition; supercapacitor; specific capacitance; cycling stability
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MDPI and ACS Style

Lee, H.-M.; Lee, K.; Kim, C.-K. Electrodeposition of Manganese-Nickel Oxide Films on a Graphite Sheet for Electrochemical Capacitor Applications. Materials 2014, 7, 265-274.

AMA Style

Lee H-M, Lee K, Kim C-K. Electrodeposition of Manganese-Nickel Oxide Films on a Graphite Sheet for Electrochemical Capacitor Applications. Materials. 2014; 7(1):265-274.

Chicago/Turabian Style

Lee, Hae-Min; Lee, Kangtaek; Kim, Chang-Koo. 2014. "Electrodeposition of Manganese-Nickel Oxide Films on a Graphite Sheet for Electrochemical Capacitor Applications." Materials 7, no. 1: 265-274.


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