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Controlling the Decoration of the Reduced Graphene Oxide Surface with Pyrene‐Functionalized Gold Nanoparticles
Author(s) -
Gabrielli Luca,
Altoè Giulia,
Glaeske Mareen,
Juergensen Sabrina,
Reich Stephanie,
Setaro Antonio,
Menna Enzo,
Mancin Fabrizio,
Gatti Teresa
Publication year - 2017
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.201700281
Subject(s) - graphene , pyrene , oxide , conjugated system , monolayer , stacking , nanomaterials , nanostructure , covalent bond , colloidal gold , nanoparticle , materials science , carbon fibers , chemical engineering , nanotechnology , chemistry , organic chemistry , composite number , polymer , composite material , engineering
We exploited a non‐covalent approach based on π‐stacking interactions to address the formation of hybrids between pyrene‐functionalized gold nanoparticles (PyAuNPs) and reduced graphene oxide (RGO), in which the former are distributed homogeneously on the surface of the latter with a high degree of coverage. We used water soluble PyAuNPs of two different average dimensions, namely 2 and 8 nm, in which the pendant pyrene moieties were introduced within a mixed monolayer with a choline derivative. The combination with RGO originates highly insoluble materials, in which microscopy evidences a complete adhesion of the PyAuNPs onto the carbon nanomaterial layers in a highly homogeneous fashion, with no traces of free particles, confirming the high affinity between pyrene‐functionalized species and conjugated carbon nanostructure surfaces.