Guell, Aleix G., Ebejer, Neil, Snowden, Michael E., Macpherson, Julie V. and Unwin, Patrick R.. (2012) Structural correlations in heterogeneous electron transfer at monolayer and multilayer graphene electrodes. Journal of the American Chemical Society, Volume 134 (Number 17). pp. 7258-7261. ISSN 0002-7863

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Abstract

As a new form of carbon, graphene is attracting intense interest as an electrode material with widespread applications. In the present study, the heterogeneous electron transfer (ET) activity of graphene is investigated using scanning electrochemical cell microscopy (SECCM), which allows electrochemical currents to be mapped at high spatial resolution across a surface for correlation with the corresponding structure and properties of the graphene surface. We establish that the rate of heterogeneous ET at graphene increases systematically with the number of graphene layers, and show that the stacking in multilayers also has a subtle influence on ET kinetics. © 2012 American Chemical Society.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH):	Charge exchange, Electrodes, Graphene, Electrochemistry
Journal or Publication Title:	Journal of the American Chemical Society
Publisher:	American Chemical Society
ISSN:	0002-7863
Date:	2 May 2012
Volume:	Volume 134
Number:	Number 17
Page Range:	pp. 7258-7261
Identification Number:	10.1021/ja3014902
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	European Research Council (ERC), Marie Curie Intra-European Fellowship (IEF), Engineering and Physical Sciences Research Council (EPSRC), National Physical Laboratory (Great Britain)
Grant number:	ERC-2009-AdG 247143-QUANTIF (ERC), 236885 (IEF), EP/H023909/1 (EPSRC)
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URI:	http://wrap.warwick.ac.uk/id/eprint/50301

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