Show simple item record

dc.contributor.authorKandasamy, Senthil Kumar
dc.contributor.authorRavindaran, Ramyea
dc.contributor.authorMichalska, Monika
dc.contributor.authorMuthusamy, Suresh
dc.contributor.authorAlmutairi, Tahani Mazyad
dc.contributor.authorPanchal, Hitesh
dc.contributor.authorGorji, M. R.
dc.contributor.authorAlrubai, Ali Jawad
dc.contributor.authorMohamed, Mohamed A.
dc.contributor.authorJaber, Mustafa Musa
dc.identifier.citationPolymer Bulletin. 2022.cs
dc.description.abstractRecently, the supercapacitor has gained more consideration due to its speedy charging and discharging, high power density, and stability compared to the existing batteries. Activated carbon-based electrodes for the supercapacitor provide higher specific capacitance. In this research, activated carbon was obtained from Prunus dulcis (almond fruit) shell by carbonization using a muffle furnace. Carbonized Prunus dulcis fruit shells were chemically activated by potassium hydroxide (KOH). X-ray diffraction (XRD) patterns of KOH-activated carbon derived from Prunus dulcis shell evident that the activated carbon samples are amorphous. The scanning electron microscope (SEM) images of activated carbon derived from Prunus dulcis exhibited a 2D sheet-like morphology and a smooth surface. Energy-dispersive X-ray spectroscopy (EDX) detected oxygen, chloride, and potassium peaks with 85.2% carbon. The addition of KOH helped to increase the porosity of the fruit shells and enhanced the absorption of the electrolyte. The supercapacitor electrode was prepared by coating activated carbon on a graphite pencil lead. The performance of the electrode was evaluated using a 6 M KOH electrolyte at various current densities and scan rates. The prepared sample was electrochemically characterized by cyclic voltammetry, galvanostatic charge and discharge measurements, and electrochemical impedance spectroscopy. From the analysis, the suitability of the material as an electrode can be understood. The specific capacitance of the samples was measured as 434, 237, 105.9, and 50.5 F g(-1) at 1, 2, 4, and 10 A g(-1), respectively. The higher specific capacitance is ascribed to the high specific surface area, electrolyte, and pore volume. And also, at an energy density of 0.28 Wh g(-1), the power density of 100 kW g(-1) is obtained. The electrode has a series resistance of 10.51 omega and a charge transfer resistance of 1.12 ohm.cs
dc.publisherSpringer Naturecs
dc.relation.ispartofseriesPolymer Bulletincs
dc.rightsCopyright © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Naturecs
dc.subjectactivated carboncs
dc.subjectalmond fruit shellscs
dc.subjectscanning electron microscopecs
dc.subjectPrunus dulciscs
dc.titleHighly carbonized Prunus dulcis shell-derived activated carbon for high-performance supercapacitor applicationscs
dc.description.sourceWeb of Sciencecs

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record