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

被引：29

作者：

Valota, Anna T. ^{[1
]}

Toth, Peter S. ^{[1
]}

Kim, Yong-J. ^{[2
,3
]}

Hong, Byung H. ^{[3
]}

Kinloch, Ian A. ^{[4
]}

Novoselov, Kostya S. ^{[2
]}

Hill, Ernie W. ^{[5
]}

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

机构：

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

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

[3] Seoul Natl Univ, Coll Nat Sci, Dept Chem, Seoul 151747, South Korea

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

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

来源：

ELECTROCHIMICA ACTA | 2013年 / 110卷

基金：

英国工程与自然科学研究理事会;

关键词：

Graphene; Voltammetry; Electron transfer; Monolayer; Bilayer; HETEROGENEOUS ELECTRON-TRANSFER; FERRICYANIDE FERROCYANIDE SYSTEM; TRANSFER KINETICS; ORDERED GRAPHITE; REDOX SYSTEM; PLATINUM; GOLD; CATIONS; SINGLE; FILMS;

D O I：

10.1016/j.electacta.2013.03.187

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：9 / 15

页数：7

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