Electrochemical behavior of monolayer and bilayer graphene

Anna T. Valota; Ian A. Kinloch; Kostya S. Novoselov; Cinzia Casiraghi; Axel Eckmann; Ernie W. Hill; Robert A W Dryfe

doi:10.1021/nn202878f

Electrochemical behavior of monolayer and bilayer graphene

Anna T. Valota, Ian A. Kinloch, Kostya S. Novoselov, Cinzia Casiraghi, Axel Eckmann, Ernie W. Hill, Robert A W Dryfe

Research output: Contribution to journal › Article › peer-review

Abstract

Results of a study on the electrochemical properties of exfoliated single and multilayer graphene flakes are presented. Graphene flakes were deposited on silicon/silicon oxide wafers to enable fast and accurate characterization by optical microscopy and Raman spectroscopy. Conductive silver paint and silver wires were used to fabricate contacts; epoxy resin was employed as a masking coating in order to expose a stable, well-defined area of graphene. Both multilayer and monolayer graphene microelectrodes showed quasi-reversible behavior during voltammetric measurements in potassium ferricyanide. However, the standard heterogeneous charge transfer rate constant, k°, was estimated to be higher for monolayer graphene flakes. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	8809-8815
Number of pages	7
Journal	ACS Nano
Volume	5
Issue number	11
DOIs	https://doi.org/10.1021/nn202878f
Publication status	Published - 2011

Keywords

electrochemistry
electron transfer
graphene
Raman spectroscopy

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10.1021/nn202878f

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title = "Electrochemical behavior of monolayer and bilayer graphene",

abstract = "Results of a study on the electrochemical properties of exfoliated single and multilayer graphene flakes are presented. Graphene flakes were deposited on silicon/silicon oxide wafers to enable fast and accurate characterization by optical microscopy and Raman spectroscopy. Conductive silver paint and silver wires were used to fabricate contacts; epoxy resin was employed as a masking coating in order to expose a stable, well-defined area of graphene. Both multilayer and monolayer graphene microelectrodes showed quasi-reversible behavior during voltammetric measurements in potassium ferricyanide. However, the standard heterogeneous charge transfer rate constant, k°, was estimated to be higher for monolayer graphene flakes. {\textcopyright} 2011 American Chemical Society.",

keywords = "electrochemistry, electron transfer, graphene, Raman spectroscopy",

author = "Valota, {Anna T.} and Kinloch, {Ian A.} and Novoselov, {Kostya S.} and Cinzia Casiraghi and Axel Eckmann and Hill, {Ernie W.} and Dryfe, {Robert A W}",

note = "Valota, Anna T. Kinloch, Ian A. Novoselov, Kostya S. Casiraghi, Cinzia Eckmann, Axel Hill, Ernie W. Dryfe, Robert A. W.",

year = "2011",

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TY - JOUR

T1 - Electrochemical behavior of monolayer and bilayer graphene

AU - Valota, Anna T.

AU - Kinloch, Ian A.

AU - Novoselov, Kostya S.

AU - Casiraghi, Cinzia

AU - Eckmann, Axel

AU - Hill, Ernie W.

AU - Dryfe, Robert A W

N1 - Valota, Anna T. Kinloch, Ian A. Novoselov, Kostya S. Casiraghi, Cinzia Eckmann, Axel Hill, Ernie W. Dryfe, Robert A. W.

PY - 2011

Y1 - 2011

N2 - Results of a study on the electrochemical properties of exfoliated single and multilayer graphene flakes are presented. Graphene flakes were deposited on silicon/silicon oxide wafers to enable fast and accurate characterization by optical microscopy and Raman spectroscopy. Conductive silver paint and silver wires were used to fabricate contacts; epoxy resin was employed as a masking coating in order to expose a stable, well-defined area of graphene. Both multilayer and monolayer graphene microelectrodes showed quasi-reversible behavior during voltammetric measurements in potassium ferricyanide. However, the standard heterogeneous charge transfer rate constant, k°, was estimated to be higher for monolayer graphene flakes. © 2011 American Chemical Society.

AB - Results of a study on the electrochemical properties of exfoliated single and multilayer graphene flakes are presented. Graphene flakes were deposited on silicon/silicon oxide wafers to enable fast and accurate characterization by optical microscopy and Raman spectroscopy. Conductive silver paint and silver wires were used to fabricate contacts; epoxy resin was employed as a masking coating in order to expose a stable, well-defined area of graphene. Both multilayer and monolayer graphene microelectrodes showed quasi-reversible behavior during voltammetric measurements in potassium ferricyanide. However, the standard heterogeneous charge transfer rate constant, k°, was estimated to be higher for monolayer graphene flakes. © 2011 American Chemical Society.

KW - electrochemistry

KW - electron transfer

KW - graphene

KW - Raman spectroscopy

U2 - 10.1021/nn202878f

DO - 10.1021/nn202878f

M3 - Article

SN - 1936-0851

VL - 5

SP - 8809

EP - 8815

JO - ACS Nano

JF - ACS Nano

IS - 11

ER -

Electrochemical behavior of monolayer and bilayer graphene

Abstract

Keywords

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