Electrochemical Behavior of Monolayer and Bilayer Graphene

被引：131

作者：

Valota, Anna T. ^{[1
]}

Kinloch, Ian A. ^{[2
]}

Novoselov, Kostya S. ^{[3
]}

Casiraghi, Cinzia ^{[1
]}

Eckmann, Axel ^{[1
]}

Hill, Ernie W. ^{[4
]}

Dryfe, Robert A. W. ^{[1
]}

机构：

[1] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Sch Mat, Manchester M13 9PL, Lancs, England

[3] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[4] Univ Manchester, Sch Comp Sci, Manchester M13 9PL, Lancs, England

来源：

ACS NANO | 2011年 / 5卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

graphene; electrochemistry; Raman spectroscopy; electron transfer; ELECTRON-TRANSFER; GRAPHITE-ELECTRODES; ORDERED GRAPHITE; REDOX SYSTEM; CAPACITANCE; KINETICS; OXIDE;

D O I：

10.1021/nn202878f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 degrees, was estimated to be higher for monolayer graphene flakes.

引用

页码：8809 / 8815

页数：7

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