Controllable selective exfoliation of high-quality graphene nanosheets and nanodots by ionic liquid assisted grinding

Nai Gui Shang, Pagona Papakonstantinou, Surbhi Sharma, Gennady Lubarsky, Meixian Li, David W. McNeill, Aidan J. Quinn, Wuzong Zhou, Ross Blackley

Research output: Contribution to journalArticlepeer-review

130 Citations (Scopus)

Abstract

Bulk quantities of graphene nanosheets and nanodots have been selectively fabricated by mechanical grinding exfoliation of natural graphite in a small quantity of ionic liquids. The resulting graphene sheets and dots are solvent free with low levels of naturally absorbed oxygen, inherited from the starting graphite. The sheets are only two to five layers thick. The graphene nanodots have diameters in the range of 9-29 nm and heights in the range of 1-16 nm, which can be controlled by changing the processing time.

Original languageEnglish
Pages (from-to)1877-1879
Number of pages3
JournalChemical Communications
Volume48
Issue number13
DOIs
Publication statusPublished - 2012

Keywords

  • FUNCTIONALIZED GRAPHENE
  • QUANTUM DOTS
  • GRAPHITE
  • SHEETS
  • OXIDE

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