Facile synthesis of bimetallic CuFe2O4 based ternary hybrid composites for supercapacitor electrodes and optimization of weight ratio of the individuals on the basis of their electrochemical performances. (10th November 2022)

• Record Type: Journal Article
• Authors: Das, Tapas; Verma, Bhawna
• Is Part Of: Materials technology. Volume 37:Number 13(2022)
• Page Start: 2552
• Page End: 2566
• Publication Date: 2022-11-10
• Subjects: Copper ferrite -- electrochemical impedance spectroscopy -- coulombic efficiency -- specific energy -- capacitance retention; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2022.2046928
• Languages: English
• ISSNs: 1066-7857

Abstract

ABSTRACT: Electrochemical characterisations like cyclic voltammetry, charge-discharge, electrochemical impedance spectroscopy are performed to find out the best ratio of aniline, acetylene black, and copper ferrite. Polyaniline-acetylene black-CuFe2 O4 (PACF1) based two-electrode cell having the weight ratio of 4:1:2 had the highest specific capacitance of 279.48 F/g at 1 mA. It exhibits the highest coulombic efficiency value of 99.5%. PACF1 offers the maximum specific energy and specific power values of 38.81 Wh/kg and 125 W/kg, respectively, at a current of 1 mA. So, PACF1 holds the best weight ratio of aniline, acetylene black, and copper ferrite, i.e. 4:1:2. It exhibits a reasonably low charge transfer resistance of 1.7 Ω. It also has quite good capacitance retention of 85% after 6000 cycles. Graphical Abstract: uf0001