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23 April 2024 |
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Electrochemical behaviour 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
; | | Date: |
7 Oct 2011 | | 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 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{deg}, was
estimated to be higher for mono-layer graphene flakes. | | Source: | arXiv, 1110.1573 | | Services: | Forum | Review | PDF | Favorites | |
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