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Morphology Controlled Growth of Meso-Porous Co3O4 Nanostructures and Study of Their Electrochemical Capacitive Behavior

Jena, Anirudha and Munichandraiah, N and Shivashankar, SA (2012) Morphology Controlled Growth of Meso-Porous Co3O4 Nanostructures and Study of Their Electrochemical Capacitive Behavior. In: JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 159 (10). A1682-A1689.

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Official URL: http://dx.doi.org/10.1149/2.002210jes

Abstract

The morphology of nanocrystalline Co3O4 synthesized through microwave irradiation of a solution of a cobalt complex is found to depend reproducibly on the conditions of synthesis and, in particular, on the composition of the solvent used. Despite the rapidity of the process, oriented aggregation occurs under certain conditions, depending on solvent composition. Annealing the oriented samples leads to microstructures with significant porosity, rendering the material suitable as electrodes for electrochemical capacitors. Electrochemical analysis of the oxide samples was carried out in 0.1M Na2SO4 electrolyte vs. Ag/AgCl electrode. A stable specific capacitance of 221 F/g was measured for a meso-porous sample displaying oriented aggregation. Stability of these oxide materials were checked for longer charge-discharge cycling. (C) 2012 The Electrochemical Society. DOI: 10.1149/2.002210jes] All rights reserved.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to ELECTROCHEMICAL SOC INC, USA
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Division of Chemical Sciences > Materials Research Centre
Other Centres/Units > Centre for Nano Science and Engineering
Date Deposited: 07 Dec 2012 08:32
Last Modified: 07 Dec 2012 08:32
URI: http://eprints.iisc.ernet.in/id/eprint/45526

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