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http://dx.doi.org/10.7316/khnes.2011.22.5.721

Electrochemical Oxidation of Carbon Felt for Redox Flow Battery  

Jung, Young-Guan (Dep. Mechanical Engineering, Kumoh National Institute of Technology)
Hwang, Gab-Jin (Graduate School, Dep. Green Energy, Hoseo University)
Kim, Jae-Chul (Graduate School, Dep. Green Energy, Hoseo University)
Ryu, Cheol-Hwi (Graduate School, Dep. Green Energy, Hoseo University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.22, no.5, 2011 , pp. 721-727 More about this Journal
Abstract
All vanadium redox-flow battery (VRFB) has been studied actively as one of the most promising electrochemical energy storage systems for a wide rage of applications such as electric vehicles, photovoltaic arrays, and excess power generated by electric power plants at night time. In this study, carbon felt electrodes were treated by electrochemical oxidation with KOH, and the cyclic voltammetry were studied in order to investigate redox reactivity of vanadium ion species with carbon felt electrodes. Besides the effect of electrochemical oxidation on the surface chemistry of carbon felt electrodes were investigated using the X-ray photoelectron spectroscopy (XPS). After electrochemical oxidation, XPS analysis of PAN based GF20-3 carbon felt electrode revealed on increase in the overall surface oxygen content of the carbon felts after electrochemical oxidation. Redox reaction characteristics using cyclic voltammetry (CV) were ascertained that the electrochemical treated electrode were more reversible than the untreated electrode.
Keywords
All vanadium redox flow battery; Carbon felt; Electrochemical oxidation; Electrode;
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Times Cited By KSCI : 1  (Citation Analysis)
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