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Enhanced electrochemical performance of manganese oxide nanocomposites for supercapacitor application

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Title Enhanced electrochemical performance of manganese oxide nanocomposites for supercapacitor application
 
Creator Kiruthika, K
Renuga, V
 
Subject Chemical co-precipitation
Manganese oxide
MWCNT
PEDOT:PSS
Supercapacitor
Energy storage
 
Description 634-642
Manganese oxide (MO) has been synthesised by chemical co-precipitation method and it was characterised for its functional group, phase structure, particle size and morphology by using FTIR, XRD, SEM and TEM. Additionally, its electrochemical properties like cyclic voltammetry (CV), galvanostatic charge/ discharge and electrochemical impedance spectroscopy (EIS) are recorded. The specific capacitance of the prepared manganese oxide is found to be 116 F/g at current density of 1 A/g. To augment its capacitance value, it was doped with multi-walled carbon nanotube (MWCNT) and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and their electrochemical performance are recorded. By doping MWCNT and PEDOT:PSS over MO, a high specific capacitance of 537 F/g at a current density of 1 A/g with 97% capacitance retention and coulombic efficiency of 98% over 10,000 cycles at a current density of 5 A/g is obtained. All these results demonstrates that MO/MWCNT/PEDOT:PSS is a promising electrode material for supercapacitor application.
 
Date 2023-09-06T11:43:47Z
2023-09-06T11:43:47Z
2023-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/62504
https://doi.org/10.56042/ijct.v30i5.5206
 
Language en
 
Source IJCT Vol.30(5) [September 2023]