Electrochemistry of well-defined graphene samples: Role of contaminants

Hollie V. Patten, Matěj Velický, Nick Clark, Christopher A. Muryn, Ian A. Kinloch, Robert A W Dryfe*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)
213 Downloads (Pure)


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.

Original languageEnglish
Pages (from-to)261-272
Number of pages12
JournalFaraday Discussions
Publication statusPublished - 17 Dec 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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