Issue 7, 2017

Covalent functionalization of polyhedral graphitic particles synthesized by arc discharge from graphite

Abstract

Carbon materials including carbon nanoparticles, such as nanographite, graphene and graphenic materials, and carbon nanotubes are known to be highly hydrophobic. Oxidation treatments are widely used as the best methods to improve their affinity in a liquid medium or a polymer matrix so that they can be dispersed, handled and processed. Here, we have applied eight different oxidation treatments in order to graft oxygen-containing functional groups at the surface of polyhedral graphitic particles synthesized by arc discharge from graphite, also called astralenes. The used functionalization approaches include both standard chemical attack by strong oxidants and radical functionalization of the sp2 network by direct C[double bond, length as m-dash]C bond opening. Commonly efficient functionalization methods were unsuccessful to functionalize astralenes while radicals generated from arylhydrazine could lead to functionalization of the outer surface of astralenes. The occurrence of functionalization could be shown by TGA coupled with MS and XPS. The reported method represents the first example of functionalization of astralenes. The efficiency of the applied functionalization methods is discussed considering the chemical reactivity of different carbon nanomaterials including graphene and carbon nanotubes.

Graphical abstract: Covalent functionalization of polyhedral graphitic particles synthesized by arc discharge from graphite

Supplementary files

Article information

Article type
Paper
Submitted
15 Dec 2016
Accepted
20 Jan 2017
First published
26 Jan 2017

Phys. Chem. Chem. Phys., 2017,19, 5405-5410

Covalent functionalization of polyhedral graphitic particles synthesized by arc discharge from graphite

E. Voss, B. Vigolo, G. Medjahdi, C. Hérold, J.-F. Marêché, J. Ghanbaja, F. Le Normand and V. Mamane, Phys. Chem. Chem. Phys., 2017, 19, 5405 DOI: 10.1039/C6CP08568G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements