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Thermodynamics study of the noncovalent functionalization of surfactant suspended graphene nanosheets with porphyrin molecules

Géraud Delport 1 Fabien Vialla 2 Stéphane Campidelli 3 Christophe Voisin 2 Jean Sebastien Lauret 1
1 Laboratoire Aimé Cotton, CNRS, ENS Cachan
2 LPA - Laboratoire Pierre Aigrain
3 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : We report on the noncovalent functionalization of graphene with hydrophobic tetraphenyl porphyrin (TPP) molecules in micellar aqueous suspensions. We study the thermodynamical parameters of the reaction using optical spectroscopy, and measure its Gibbs energy. We show that a total reaction can be achieved, leading to a high functionalization yield, despite the π-stacking noncovalent binding. Side view of a graphene nanosheet covered with porphyrins.
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https://hal-cea.archives-ouvertes.fr/cea-01414729
Contributor : Serge Palacin <>
Submitted on : Monday, December 12, 2016 - 3:09:54 PM
Last modification on : Tuesday, December 15, 2020 - 4:03:20 AM

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CEA | CNRS | UNIV-PARIS7 | UPMC | DSM-IRAMIS | PUBNIMBE | IRAMIS-NIMBE | CEA-UPSAY | USPC | ENS-CACHAN | INC-CNRS | CEA-DRF | SORBONNE-UNIVERSITE | UNIV-PARIS | LUMIN | PSL

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Géraud Delport, Fabien Vialla, Stéphane Campidelli, Christophe Voisin, Jean Sebastien Lauret. Thermodynamics study of the noncovalent functionalization of surfactant suspended graphene nanosheets with porphyrin molecules. physica status solidi (b), Wiley, 2016, 253, pp.2373-2376. ⟨10.1002/pssb.201600269⟩. ⟨cea-01414729⟩

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