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Functional porous graphene materials by pickering emulsion templating: From emulsion stabilization to structural
Yiwen Chen1, Thomas Szkopek2, Marta Cerruti1
1Department of Mining and Materials Engineering, McGill University, Montreal, Canada.
Advances in Colloid and Interface Science
|May 7, 2025
Summary
Graphene oxide (GO) can stabilize Pickering emulsions, enabling the creation of tunable porous graphene materials (PGMs). These PGMs offer versatile applications in energy storage, sensing, and beyond.
Area of Science:
- Materials Science
- Nanotechnology
- Colloid and Surface Chemistry
Background:
- Graphene oxide (GO) is a versatile derivative of graphene with amphiphilic properties.
- GO can stabilize Pickering emulsions due to its hydrophilic and hydrophobic domains.
- These emulsions serve as templates for advanced porous graphene materials (PGMs).
Purpose of the Study:
- To review the factors influencing GO amphiphilicity and its role in Pickering emulsion stabilization.
- To explore the fabrication of PGMs with controlled architecture and composition using GO emulsion templates.
- To discuss the applications and future prospects of emulsion-templated PGMs.
Main Methods:
- Investigating the amphiphilicity of graphene oxide (GO).
- Utilizing GO to stabilize Pickering emulsions.
- Processing GO emulsions (drying, reduction) to form porous graphene materials (PGMs).
Main Results:
- GO effectively stabilizes Pickering emulsions, allowing for tunable PGM architectures.
- Emulsion templating enables control over pore size, shape, volume, and interconnectivity.
- Functional additives can be precisely incorporated into PGMs via this method.
Conclusions:
- Emulsion-templated PGMs exhibit high surface area, low density, and tunable properties.
- These PGMs are promising for applications in energy storage, biomedical engineering, sensing, and separation.
- Further research can unlock new opportunities for GO-based PGMs.
