Issue 30, 2012
From the journal:

Soft Matter

Solutions of fully exfoliated individual graphene flakes in low boiling point solvents†

Amélie Catheline,ab   Luca Ortolani,c   Vittorio Morandi,c   Manuel Melle-Franco,d   Carlos Drummond,ab   Cécile Zakriab  and  Alain Pénicaud*ab  

* Corresponding authors

a CNRS, Centre de Recherche Paul Pascal (CRPP), UPR 8641, F-33600 Pessac, France
E-mail: penicaud@crpp-bordeaux.cnrs.fr

b Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France

c CNR IMM-Bologna, Via Gobetti 101, 40129 Bologna, Italy

d CCTC, Dep. Informatics, University of Minho, Braga, Portugal

Abstract

Graphenide solutions (solutions of negatively charged graphene flakes) have been prepared in low boiling point solvents such as tetrahydrofuran (THF) by dissolution of the graphite intercalation compound (GIC) KC8. The presence of two-dimensional objects in solution, with an average lateral size of over one micron, is evidenced by light scattering analysis. High resolution transmission electron microscopy analysis shows that the solubilized graphene flakes are exclusively single and double layers with no evidence for thicker species. Molecular dynamics simulations support the graphene folding, observed in TEM, and suggest it is triggered by solvent nanodrops.

Graphical abstract: Solutions of fully exfoliated individual graphene flakes in low boiling point solvents

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Article information

DOI
https://doi.org/10.1039/C2SM25960E
Article type
Paper
Submitted
25 4 2012
Accepted
31 5 2012
First published
28 6 2012

Soft Matter, 2012,8, 7882-7887

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Solutions of fully exfoliated individual graphene flakes in low boiling point solvents

A. Catheline, L. Ortolani, V. Morandi, M. Melle-Franco, C. Drummond, C. Zakri and A. Pénicaud, Soft Matter, 2012, 8, 7882 DOI: 10.1039/C2SM25960E

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