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Related Experiment Video

Updated: Jun 16, 2026

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Synthesis of phase transferable graphene sheets using ionic liquid polymers.

Taeyoung Kim1, Hyunwook Lee, Jongeun Kim

  • 1Department of Materials Science and Engineering, Korea University, 5-1 Anam-dong, Seongbuk-gu, Seoul 137-713, South Korea.

ACS Nano
|February 18, 2010
PubMed
Summary

Ionic liquid polymers (PIL) enable stable, water-dispersible graphene sheets transferable to organic solvents. This method facilitates graphene

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Graphene production and transfer remain challenging for scalable applications.
  • Solution-phase processing requires stable, well-dispersed graphene derivatives.
  • Controlling graphene's solubility between aqueous and organic phases is crucial.

Purpose of the Study:

  • To develop a practical method for producing solution-phase transferable graphene sheets.
  • To utilize ionic liquid polymers (PIL) as an effective medium for graphene transfer.
  • To demonstrate the tunable solubility of PIL-modified graphene.

Main Methods:

  • Chemically converted graphene sheets were synthesized.
  • Graphene sheets were decorated with ionic liquid polymers (PIL).

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  • Anion exchange was performed on the PIL-modified graphene to alter solubility.

    • Main Results:

    • PIL-decorated graphene sheets exhibited stability during chemical reduction.
    • Graphene sheets showed excellent dispersion in aqueous solutions without agglomeration.
    • Hydrophilic PIL-modified graphene was successfully transferred to the organic phase by anion exchange, rendering it hydrophobic.

    Conclusions:

    • Ionic liquid polymers provide a viable medium for producing stable, transferable graphene sheets.
    • The developed method allows for controlled dispersion and phase transfer of graphene.
    • This approach offers a practical route for integrating graphene into various solution-based processes.