Issue 30, 2012

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

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

Supplementary files

Article information

Article type
Paper
Submitted
25 Apr 2012
Accepted
31 May 2012
First published
28 Jun 2012

Soft Matter, 2012,8, 7882-7887

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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