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Zambaga Otgonbayar,Kamrun Nahar Fatema,Md Nazmodduha Rafat,Jihyeon Ryu,양선혜,Ick-Jun Kim,Won Chun Oh 한국세라믹학회 2020 한국세라믹학회지 Vol.57 No.5
The goal of this study was to analyse the impact of a combination of a sub-active material (KMnO 4 ) with surface modifi cation to the activated carbon surface for enhanced cathode performance. Activated carbon with ultra-specifi c surface area (USAC, TCK-PBM, 2560.4 m 2 /g) was used for the preparation of our composite with potassium permanganate (KMnO 4 ). The physical characteristics of this As-treated USAC sample were analysed through XRD, SEM and EDX analysis. The XRD analysis was used to examine structural properties; surface analysis undertaken by SEM; EDX analysis was used to measure the metal content of the sample as well as the content after treatment with KMnO 4 . It was shown USAC treated with KMnO 4 had more than a 10.5 μg acidic group by the Boehm titration method. The electrochemical properties of KMnO 4 -USAC were investigated for varying electrolyte concentration (0.1, 0.5, 1.2 and 6 M) at ambient temperature (25 °C) and the electrode showed great electrochemical performance after ten cycles.