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Synthesis of Graphene from a Used Battery Electrode

Kumar, Punith MK and Srivastava, Chandan (2016) Synthesis of Graphene from a Used Battery Electrode. In: JOM, 68 (1). pp. 374-383. (In Press)

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Official URL: http://dx.doi.org/10.1007/s11837-015-1657-4

Abstract

Graphene was produced by electrochemical exfoliation of a used battery electrode. Aqueous solutions of cationic (cetyltrimethylammonium bromide), anionic (sodium dodecyl sulphate), and nonionic (poly vinyl pyrrolidone) surfactants, along with NaCl and combinations of these surfactants with NaCl, were used as the electrolyte. The following observations were made: (I) up to several micrometer sized graphene sheets were produced, (II) the addition of NaCl into the electrolytes significantly enhanced the yield of the exfoliated graphene, (III) the type of surfactant affected the defect density of the exfoliated product, and (IV) electrochemical impedance spectroscopy provided insight into the reason for the changes in the defect density ratio between the graphene samples.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 29 Jan 2016 07:19
Last Modified: 29 Jan 2016 07:19
URI: http://eprints.iisc.ac.in/id/eprint/53172

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