Thermochemical functionalisation of graphenes with minimal framework damage
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Graphene and graphene nanoplatelets can be functionalised via a gas-phase thermochemical method; the approach is versatile, readily scalable, and avoids the introduction of additional defects by exploiting existing sites. Direct TEM imaging confirmed covalent modification of single layer graphene, without damaging the connectivity of the lattice, as supported by Raman spectrometry and AFM nano-indentation measurements of mechanical stiffness. The grafting methodology can also be applied to commercially-available bulk graphene nanoplatelets, as illustrated by the preparation of anionic, cationic, and non-ionic derivatives. Successful bulk functionalisation is evidenced by TGA, Raman, and XPS, as well as in dramatic changes in aqueous dispersability. Thermochemical functionalisation thus provides a facile approach to modify both graphene monolayers, and a wide range of graphene-related nanocarbons, using variants of simple CVD equipment.
Date Issued
2017-06-16
Date Acceptance
2017-06-15
Citation
Chemical Science, 2017, 8 (9), pp.6149-6154
ISSN
2041-6520
Publisher
Royal Society of Chemistry
Start Page
6149
End Page
6154
Journal / Book Title
Chemical Science
Volume
8
Issue
9
Copyright Statement
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
License URL
Subjects
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
CHEMICALLY DERIVED GRAPHENE
THERMAL REDUCTION
MULTISLICE METHOD
CARBON NANOTUBES
OXIDE
SCATTERING
OXYGEN
SPECTROSCOPY
NANOSHEETS
Publication Status
Published