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Electrochemical investigation of chemical vapour deposition monolayer and bilayer graphene on the microscale

Cited 23 time in Web of Science Cited 26 time in Scopus
Authors
Valota, Anna T.; Toth, Peter S.; Kim, Yong-J.; Hong, Byung Hee; Kinloch, Ian A.; Novoselov, Kostya S.; Hill, Ernie W.; Dryfe, Robert A. W.
Issue Date
2013-11
Citation
Electrochimica Acta, Vol.110, pp.9-15
Keywords
GrapheneVoltammetryElectron transferMonolayerBilayer
Abstract
A micromanipulator combined with a microinjection system was employed to inject micro-droplets of aqueous solutions containing redox-active species on selected areas of graphene. Chronoamperometric and voltammetric measurements were performed in order to investigate the diffusion regime established within the micro-droplets. The heterogeneous electron transfer rate for two model redox couples, Fe(CN)(6)(3-) and IrCl62- were estimated on various regions of chemical vapour deposited monolayer and turbostratic Mayer graphene on the basis of the voltammetric responses. New insights are thus obtained into the electron transfer properties of graphene, which is of primary importance for its exploitation as an electrode material. (C) 2013 The Authors, Published by Elsevier Ltd. All rights reserved.
ISSN
0013-4686
URI
https://hdl.handle.net/10371/172187
DOI
https://doi.org/10.1016/j.electacta.2013.03.187
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College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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