Electrochemistry of well-defined graphene samples: role of contaminants

被引：14

作者：

Patten, Hollie V. ^{[1
]}

Velicky, Matej ^{[1
]}

Clark, Nick ^{[2
,3
]}

Muryn, Christopher A. ^{[1
,4
]}

Kinloch, Ian A. ^{[2
]}

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

机构：

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

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

[3] Univ Manchester, Ctr Mesosci & Nanotechnol, Manchester M13 9PL, England

[4] Univ Manchester, Photon Sci Inst, Manchester M13 9PL, England

来源：

FARADAY DISCUSSIONS | 2014年 / 172卷

基金：

英国工程与自然科学研究理事会;

关键词：

ELECTRON-TRANSFER KINETICS; EXFOLIATED GRAPHENE; CYCLIC VOLTAMMETRY; ORDERED GRAPHITE; MONOLAYER; BEHAVIOR; FILMS; WETTABILITY; CAPACITANCE; MICROSCOPY;

D O I：

10.1039/c4fd00064a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the electrochemical characterisation of well-defined graphene samples, prepared by mechanical exfoliation. Mechanical exfoliation is the method of choice for high purity graphene samples, despite the inherent complexity of the approach and the small scale of the resultant flakes. However, one important, yet presently unclear area, is the role of adsorbates such as processing residue, on the properties of the graphene layer. We report high resolution microscopic and electrochemical characterisation of a variety of poly(methyl methacrylate) (PMMA) transferred graphene samples, with the explicit aim of investigating the relationship between electrochemical activity and sample purity.

引用

页码：261 / 272

页数：12

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