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http://dx.doi.org/10.5695/JKISE.2019.52.3.180

Improvement of Cathode Reaction of Vanadium Redox Flow Battery by Reforming Graphite Felt Electrode Using Cobalt Oxide  

Park, Jeongmok (Department of Metallurgical Engineering, Pukyong National University)
Ko, Minseong (Department of Metallurgical Engineering, Pukyong National University)
Publication Information
Journal of the Korean institute of surface engineering / v.52, no.3, 2019 , pp. 180-185 More about this Journal
Abstract
The demands to improve the performance of the vanadium redox flow battery have attracted an intense research on modifying the carbon-based electrode. In this study, the surface of graphite felt was reformed, using cobalt oxide. The cobalt oxide was implanted into graphite felt during hydrothermal and two step heat treatments. The cobalt was deposited by hydrothermal method and the two step heat treatments made lots of holes on the graphite felt surface which is called as porous surface. The porous surface acts as an electrochemically active site for the cathodic reaction of vanadium redox flow battery. The reformed electrode shows the electrochemically improved performance compared with the pristine electrode.
Keywords
Vanadium redox flow battery; Graphite felt; Porous surface; Active site;
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