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

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.

* Corresponding authors: [email protected]; [email protected]

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• Chaotic Dirac billiard in graphene quantum dots
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• Graphene-Based Liquid Crystal Device
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Cited by in corpus (2)

• Electrocatalytic Hydrogen Evolution Reaction on Edges of a Few Layer Molybdenum Disulfide Nanodots
• Tuning the catalytic activity of graphene nanosheets for oxygen reduction reaction via size and thickness reduction