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Continuous Hydrothermal Flow Synthesis of Graphene Quantum Dots

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Heil,  Tobias
Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Kellici, S., Acord, J., Power, N., Morgan, D. J., Heil, T., Coppo, P., et al. (2018). Continuous Hydrothermal Flow Synthesis of Graphene Quantum Dots. Reaction Chemistry & Engineering. doi:10.1039/C8RE00158H.


Cite as: http://hdl.handle.net/21.11116/0000-0002-55B7-0
Abstract
Green fluorescent graphene quantum dots (GQD) have been synthesized via hydrothermal fragmentation using a Continuous Hydrothermal Flow Synthesis (CHFS) process as a single, rapid and environmentally benign method. This is in the presence of p-phosphonic acid calix[4]arene which enhances the optical properties of the graphene quantum dots through surface functionalization, with photoluminescence quantum yields of up to 4.5%. Potential environmental impact of a lab-scale supercritical CHFS process compared with that of conventional batch processing of GQDs has been assessed using the method of the International Reference Life Cycle Data System.