High performance supercapacitors based on thermally reduced graphene oxide

Abstract

In the present paper, graphene has been addressed as active material for supercapacitor electrodes. In particular we describe an environmental-friendly two stages procedure for the preparation of graphene-based electrodes for supercapacitors. In the first step, graphene oxide was synthesized by means of the modified Hummers method and deposited onto a metallic substrate (titanium, stainless steel and nickel wire meshes) by electrophoretic deposition. The second step consisted in a thermal treatment carried out to remove the functional groups from graphene oxide. The electrodes were finally characterized by cyclic voltammetry in order to measure their electrochemical performances in aqueous electrolytes (0.5 M K₂SO₄, 1M Na ₂SO₄ and 6M KOH).

Original language	English
Title of host publication	Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Pages	664-667
Number of pages	4
Volume	2
Publication status	Published - 2013
Externally published	Yes
Event	Nanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 - Washington, DC, United States Duration: 12 May 2013 → 16 May 2013

Conference

Conference	Nanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Country	United States
City	Washington, DC
Period	12.5.13 → 16.5.13

Keywords

Energy storage
Graphene
Graphene oxide
Supercapacitors
Thermal reduction

ASJC Scopus subject areas

Biotechnology

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Cite this

Perego, D, Franz, S, Bestetti, M & Borioli, C 2013, High performance supercapacitors based on thermally reduced graphene oxide. in Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013. vol. 2, pp. 664-667, Nanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013, Washington, DC, United States, 12.5.13.

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AU - Franz, S.

AU - Bestetti, M.

AU - Borioli, C.

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N2 - In the present paper, graphene has been addressed as active material for supercapacitor electrodes. In particular we describe an environmental-friendly two stages procedure for the preparation of graphene-based electrodes for supercapacitors. In the first step, graphene oxide was synthesized by means of the modified Hummers method and deposited onto a metallic substrate (titanium, stainless steel and nickel wire meshes) by electrophoretic deposition. The second step consisted in a thermal treatment carried out to remove the functional groups from graphene oxide. The electrodes were finally characterized by cyclic voltammetry in order to measure their electrochemical performances in aqueous electrolytes (0.5 M K2SO4, 1M Na 2SO4 and 6M KOH).

AB - In the present paper, graphene has been addressed as active material for supercapacitor electrodes. In particular we describe an environmental-friendly two stages procedure for the preparation of graphene-based electrodes for supercapacitors. In the first step, graphene oxide was synthesized by means of the modified Hummers method and deposited onto a metallic substrate (titanium, stainless steel and nickel wire meshes) by electrophoretic deposition. The second step consisted in a thermal treatment carried out to remove the functional groups from graphene oxide. The electrodes were finally characterized by cyclic voltammetry in order to measure their electrochemical performances in aqueous electrolytes (0.5 M K2SO4, 1M Na 2SO4 and 6M KOH).

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KW - Graphene

KW - Graphene oxide

KW - Supercapacitors

KW - Thermal reduction

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