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Journal Article

A Green Chemistry of Graphene: Photochemical Reduction towards Monolayer Graphene Sheets and the Role of Water Adlayers

MPS-Authors

Li,  Xin-Hao
Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Wang,  Xinchen
Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Schuster,  Manfred E.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

Antonietti,  Markus
Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Li, X.-H., Chen, J.-S., Wang, X., Schuster, M. E., Schlögl, R., & Antonietti, M. (2012). A Green Chemistry of Graphene: Photochemical Reduction towards Monolayer Graphene Sheets and the Role of Water Adlayers. ChemSusChem: chemistry & sustainability, energy & materials, 5(4), 642-646. doi:10.1002/cssc.201100467.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-545A-2
Abstract
Clean sheets: Stable aqueous dispersions of graphene sheets (GSs) are obtained by exposing graphene oxide to irradiation with light at room temperature, without using any chemical additives. The photochemical reduction method is sustainable and scalable, repairs a majority of defects in the graphene layers, and can be used to fine-tune surface functional groups. Interestingly, the aqueous GS dispersions are stable without any added surfactant. The existence of a water layer that is strongly bound to GS is evidenced.