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

LISCIO, Andrea, KOUROUPIS-AGALOU, Konstantinos, KOVTUN, Alessandro, GEBREMEDHN, Elias, EL GARAH, Mohamed, REKAB, Wassima, ORGIU, Emanuele, GIORGINI, Loris, SAMORÌ, Paolo, BELJONNE, David et PALERMO, Vincenzo, 2016. Exfoliation of Few-Layer Graphene in Volatile Solvents Using Aromatic Perylene Diimide Derivatives as Surfactants. ChemPlusChem [en ligne]. 18 novembre 2016. [Consultésans date]. DOI 10.1002/cplu.201600503. Consulté de : https://doi.org/10.1002/cplu.201600503Commercial, 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.1. .
Accès libre Peer reviewed
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
URL éditeur https://doi.org/10.1002/cplu.201600503
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.
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DOI 10.1002/cplu.201600503
Éditeur

Wiley-VCH Verlag
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
exfoliation
graphene
graphene-based composites
surfactants
Unité de recherche extérieure au site

ISOF, CNR, via Gobetti 101, 40129 Bologna (Italy)
University of Mons, Place du Parc 20, 7000 Mons (Belgium)
Dipartimento di Chimica Industriale “Toso Montanari” Universit/ di Bologna, viale Risorgimento 4, 40100 Bologna (Italy)
Fonction

crp
aut
Audience

International
À envoyer vers HAL (Fonctionnalité à venir)

3