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http://dx.doi.org/10.4191/KCERS.2008.45.8.493

CoMn Oxide/Carbon-nanofiber Composite Electrodes for Supercapacitors  

Kim, Yong-Il (Department of Applied Chemistry and Biotechnology, Hanbat National University)
Yoon, Yu-Il (Department of Applied Chemistry and Biotechnology, Hanbat National University)
Ko, Jang-Myoun (Department of Applied Chemistry and Biotechnology, Hanbat National University)
Publication Information
Journal of the Korean Ceramic Society / v.45, no.8, 2008 , pp. 493-496 More about this Journal
Abstract
Composite electrodes consisting of $CoMnO_2$ and carbon nanofibers(vapor grown carbon nanofiber, VGCF) with high electrical conducivity($CoMnO_2$/VGCF) were prepared on a porous nickel foam substrate as a current collector and their supercapacitive properties were investigated using cyclic voltammetry in 1 M KOH aqueous solution. The $CoMnO_2$/VGCF electrode exhibited high specific capacitance value of 630 F/g at 5 mV/s and excellent capacitance retention of 95% after $10^4$ cycles, indicating that the used VGCF played the important roles in reducing the interfacial resistance in the composite electrode to improve supercapacitive performance.
Keywords
Supercapacitor; $CoMnO_2$; Nickel foam; Capacitance;
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