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        Promising nature-based activated carbon derived from flowers of Borassus flabellifer for supercapacitor applications

        Iro Zaharaddeen S.,Subramani C.,Rajendran Jerome,Sundramoorthy Ashok K. 한국탄소학회 2021 Carbon Letters Vol.31 No.6

        Recently, activated carbon derived from diferent agricultural by-products or bio-waste is receiving a great deal of attention due to its low or zero cost and environmental friendliness. In this work, fowers obtained from Borassus fabellifer (BFL) is used as a carbon source and potassium hydroxide (KOH) as activation precursor to produce activated carbon with high specifc surface area and predominant micropore. The obtained carbon material was activated at 650 °C. The as-prepared sample had a specifc surface area of 930.3 m2 /g and pore size distribution of 1.96 nm. The carbon material exhibited high electrochemical performance with a specifc capacitance of 247 F/g at 0.5 A/g in 1 M H2SO4 electrolyte and an excellent cycling stability of 94% after 2500 cycles. A specifc energy of 101.1 Wh/kg and a specifc power of 4500 kW/kg were obtained. Based on the electrochemical properties exhibited by BFL, it could be used as an excellent electrode material for supercapacitor applications.

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