CPC C01B 32/225 (2017.08) [C09K 11/65 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); C01B 2204/32 (2013.01); C01P 2004/04 (2013.01)] | 7 Claims |
1. A method of preparing graphene quantum dots, comprising:
a process of introducing a carbon-based layered structure into a reactor containing a solvent;
a process of forming an intercalation composite by inserting an intercalant between layers of the carbon-based layered structure;
a process of placing and heat-treating the intercalation composite on a substrate to weaken the interlayer attractive force of the intercalation composite; and
a process of exfoliating the intercalation composite by applying a voltage to the substrate to obtain graphene quantum dots.
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