Symmetric supercapacitor based on partially exfoliated and reduced graphite oxide in neutral aqueous electrolyte

Shivakumara, S and Kishore, Brij and Penki, Tirupathi Rao and Munichandraiah, N (2014) Symmetric supercapacitor based on partially exfoliated and reduced graphite oxide in neutral aqueous electrolyte. In: SOLID STATE COMMUNICATIONS, 199 . pp. 26-32.

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Abstract

The partially exfoliated and reduced graphite oxide (PE-RGO) is prepared by low temperature thermal exfoliation of graphite oxide under air atmosphere. A symmetric carbon/carbon supercapacitor is studied in a Na2SO4 aqueous electrolyte. The discharge capacitance is 92 F g(-1), when symmetric cell is cycled between the potential ranges from 0 to 1.6 V. This system demonstrates a stable charge/discharge cycle behavior up to 3000 cycles when the cell is operated at a voltage window of 1.6 V. The utilization ratio of potential window is 90% for this system is attributed to the more negative value of electrodes potential when the cell voltage is set to 0 V. The low-temperature exfoliation approach is convenient for mass production of graphenes at low cost and it can be used as electrode material for energy storage applications. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	SOLID STATE COMMUNICATIONS
Additional Information:	Copyrights for this articles belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	14 Dec 2014 07:28
Last Modified:	14 Dec 2014 07:28
URI:	http://eprints.iisc.ac.in/id/eprint/50417

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