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Title: Effect of Different Aqueous Electrolytes on Electrochemical Performance of Activated Carbon Anchored by Multiwalled Carbon Nanotubes for Supercapacitor Applications
Authors: Mandal, Manoranjan
Subudhi, Subhasri
Alam, Injamul
Subramanyam, BVRS
Das, Sonali
Raiguru, Jagatpati
Mahanandia, Pitamber
Keywords: Aqueous Electrolytes
Activated Carbon
Multiwalled Carbon Nanotubes
Issue Date: Dec-2019
Citation: 64th DAE Solid State Physics Symposium, IIT Jodhpur, Rajasthan, India, 18-22 December 2019
Abstract: Activated carbon anchored by multiwalled carbon nanotubes has been prepared by a simple method and have been reported the effect of various aqueous electrolytes such as KOH and Na 2 SO 4 on electrochemical performance of activated carbon/multiwalled carbon nanotubes composite. The electrochemical performance of as prepared composite has been investigated by cyclic voltammetry (CV) and galvanostatic charge discharge (GCD) measurements in 1M KOH and 1M Na 2 SO 4 aqueous electrolytes. Maximum capacitance of prepared composite was 194 F/g at scan rate of 10 mV/s and 56 F/g at scan rate of 100 mV/s in 1M KOH solutions whereas the composite gives maximum capacitance of 21 F/g at scan rate of 40 mV/s in 1M Na 2 SO 4 analyzed by CV measurement. Also, form GCD measurement the composite gives maximum capacitance of 147 F/g at a current density of 60 A/g in 1M KOH and 18 F/g at a current density of 1 A/g in 1M Na 2 SO 4 solutions. The finding suggests that prepared activated carbon/multiwalled carbon nanotubes composite in suitable aqueous electrolytes can be a potential candidate for supercapacitor applications.
Description: Copyright belongs to proceeding publisher
Appears in Collections:Conference Papers

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