Effect of electrolyte concentration on the electrochemical performance of RGO-Na2SO4 supercapacitor. (2022)

• Record Type: Journal Article
• Authors: Krishnan, Pinku; Biju, V.
• Is Part Of: Materials today. Volume 54:Part 3(2022)
• Page Start: 958
• Page End: 962
• Publication Date: 2022
• Subjects: Supercapacitor -- Reduced graphite oxide -- Sodium sulfate, electrolyte concentration; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.10.512
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The nature and concentration of electrolyte used play a vital role in the performance of supercapacitors. It is known that the performance of the active material will be optimum for a specific concentration of electrolyte. Herein, we report a study on the effect of electrolyte concentration on the electrochemical performance of Reduced Graphite Oxide – sodium sulfate supercapacitor. The supercapacitor achieves a maximum specific capacitance of 176 Fg −1 in 1 M Na2 SO4 with energy and power density values of 47 W h kg −1 and 700 Wkg −1 . The kinetics of charge storage reveals the combinations of the surface phenomenon and intercalation process lead to maximum specific capacitance.