Volume 172, 2014

Electrochemistry of well-defined graphene samples: role of contaminants


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.

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Article type
10 Apr 2014
12 May 2014
First published
12 Aug 2014
This article is Open Access
Creative Commons BY license

Faraday Discuss., 2014,172, 261-272

Author version available

Electrochemistry of well-defined graphene samples: role of contaminants

H. V. Patten, M. Velický, N. Clark, C. A. Muryn, I. A. Kinloch and R. A. W. Dryfe, Faraday Discuss., 2014, 172, 261 DOI: 10.1039/C4FD00064A

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