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Preparation and characterization studies of La doped CuS nanospheres by microwave irradiation for high performance supercapacitors

Jeyabanu, K and Devendran, P and Manikandan, A and Packiaraj, R and Ramesh, K and Nallamuthu, N (2019) Preparation and characterization studies of La doped CuS nanospheres by microwave irradiation for high performance supercapacitors. In: PHYSICA B-CONDENSED MATTER, 573 . pp. 92-101.

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Official URL: https://dx.doi.org/10.1016/j.physb.2019.08.028

Abstract

Lanthanum (Rare earth metal) doped CuS (La@CuS) at different compositions (0%, 1%, 3% and 5% of La) are synthesized by encapsulation of sodium alginate biopolymer using microwave irradiation method. The prepared various compositions of La@CuS are examined by structural characterizations, particle size and identifications of elements from XRD, TEM and EDX spectrum. The surface morphological studies are conformed by SEM and TEM images. Optical properties and characteristics peak are confirmed with UV, FTIR and Raman spectroscopic tools. In addition to that the electrochemical performances are studied using Cyclic Voltammetry (CV), Galvanostatic charge and discharge (GCD) and electrochemical impedance spectroscopy (EIS) investigations. The specific capacitance is found to be 1329 F/g for 5% of La doped CuS nano spheres.

Item Type: Journal Article
Additional Information: copyright for this article belongs to ELSEVIER
Keywords: La@CuS nanospheres; Bio-polymer; TEM; Microwave irradiation; Electrochemical studies; Supercapacitor
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 04 Nov 2019 08:11
Last Modified: 04 Nov 2019 08:11
URI: http://eprints.iisc.ac.in/id/eprint/63665

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