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Thermodynamics study of the noncovalent functionalization of surfactant suspended graphene nanosheets with porphyrin molecules
Author(s) -
Delport Géraud,
Vialla Fabien,
Campidelli Stéphane,
Voisin Christophe,
Lauret Jean Sébastien
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201600269
Subject(s) - surface modification , porphyrin , graphene , molecule , non covalent interactions , stacking , nanosheet , materials science , aqueous solution , gibbs free energy , chemistry , chemical engineering , photochemistry , nanotechnology , organic chemistry , thermodynamics , hydrogen bond , engineering , physics
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.