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Olive Oil Lampblack for Supercapacitor Electrodes

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Title Olive Oil Lampblack for Supercapacitor Electrodes
 
Creator Joshi, Prakash
Lawaju, Umesh
Nakarmi, Mim Lal
Rai, Ram Chandra
Khatri, Sabina
Pradhan, Ramani
 
Subject Lampblack
Supercapacitor
Hierarchical pores
Flame-soot method
 
Description 562-569
In this study, we prepared and characterized lampblack of olive oil for application in supercapacitors. The lampblack was
prepared by the simple technique of flame-soot method. The lampblack samples characterized by using X-ray Diffraction
(XRD), Raman spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), N2 adsorption-desorption isotherms,
Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Spectroscopy (EDS) revealed that they contain mostly
amorphous nanosized carbon particles with oxygenated functional groups and the carbon content in the lampblack was
92.6%. The surface area of the lampblack carbon calculated from the Brunauer-Emmett-Teller (BET) method was found to
be about 302.7 m2g-1 with an average pore size of 1.69 nm obtained from the Density Functional Theory (DFT) analysis.
Lampblack carbon samples were used to prepare supercapacitor electrodes. Electrochemical properties of the electrodes
were investigated in 6M aqueous KOH by Cyclic Voltammetry (CV), Galvanostatic Charge Discharge (GCD), and
Electrochemical Impedance Spectroscopy (EIS) techniques. The specific capacitance of the electrode obtained from the
GCD test was 70.36 Fg-1 at the current density of 1 Ag-1 with a low Equivalent Series Resistance (ESR) value of 0.81 Ω.
 
Date 2024-08-05T09:42:20Z
2024-08-05T09:42:20Z
2024-08
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/64316
https://doi.org/10.56042/ijpap.v62i7.8435
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.62(07) [July 2024]