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바나듐 레독스 흐름전지 양극 반응 향상을 위한 코발트 산화물 전극 개질법 연구
박정목(Jeongmok Park),고민성(Minseong Ko) 한국표면공학회 2019 한국표면공학회지 Vol.52 No.3
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.