Exfoliation of Few-Layer Graphene in Volatile Solvents Using Aromatic Perylene Diimide Derivatives as Surfactants

Accès libre Peer reviewed | |
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Version acceptée pour publication (post-print auteur) | |
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC] | |
Auteurs |
Andrea Liscio Konstantinos Kouroupis-Agalou Alessandro Kovtun Elias Gebremedhn Mohamed El Garah Wassima Rekab Emanuele Orgiu Loris Giorgini Paolo Samorì David Beljonne Vincenzo Palermo |
Unité de recherche du site |
Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006 |
Langue |
en |
Volume |
82 |
Numéro |
3 |
Page de début |
358 |
Page de fin |
367 |
Date de première publication |
2016-11-18 |
Date de parution |
2017-03-01 |
ISSN |
2192-6506 |
Titre de la source (revue, livre…) |
ChemPlusChem |
Résumé |
Commercial, aromatic perylene diimide (PDI) dyes were used to exfoliate few-layer graphene nanosheets in low-boiling organic solvents such as chloroform and tetrahydrofuran. Importantly, in such solvents, graphene cannot be exfoliated in the absence Show moreCommercial, aromatic perylene diimide (PDI) dyes were used to exfoliate few-layer graphene nanosheets in low-boiling organic solvents such as chloroform and tetrahydrofuran. Importantly, in such solvents, graphene cannot be exfoliated in the absence of the aromatic perylene diimide (PDI) dyes. The PDIs are physisorbed onto the basal plane of the nanosheet surface, which stabilized them in solution; the aromatic core lies flat on graphene and the PDI side groups influenced the physisorption strength and molecular packing. Upon varying just a single atom in the chemical structure of the side groups, significantly different exfoliation efficiencies were observed. The graphene–PDI interaction was studied at the nanoscale by scanning tunneling microscopy and molecular dynamics, at the microscale by atomic force and electron microscopy, and at the macroscale by optical spectroscopy. Thanks to the high volatility of the chosen solvent, the nanosheets can be embedded in standard polymer composites through a simple solvent-induced swelling procedure. Show less |
DOI | 10.1002/cplu.201600503 |
Éditeur |
Wiley-VCH Verlag |
URL éditeur |
https://doi.org/10.1002/cplu.201600503 |
Type de publication |
ACL |
Projet(s) de recherche ANR |
ANR through the LabEx CSC (ANR-10-LABX-0026 CSC) |
Projet(s) de recherche européen(s) |
European Commission through the EC Marie-Curie ITN-GENIUS (PITN-GA-2010–264694), the Flagship GrapheneCore1 (GA-696656) |
Domaine |
Chimie/Polymères |
Mots-clés |
adsorption |
Unité de recherche extérieure au site |
ISOF, CNR, via Gobetti 101, 40129 Bologna (Italy) |
Fonction |
crp |
Identifiant idREF |
19105190X |
Audience |
International |
Envoyer vers HAL |
5 |
URL | https://univoak.eu/islandora/object/islandora:61419 |