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Issue 9, 2017
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Thermochemical functionalisation of graphenes with minimal framework damage

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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.

Graphical abstract: Thermochemical functionalisation of graphenes with minimal framework damage

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Publication details

The article was received on 21 Dec 2016, accepted on 15 Jun 2017 and first published on 16 Jun 2017


Article type: Edge Article
DOI: 10.1039/C6SC05603B
Citation: Chem. Sci., 2017,8, 6149-6154
  • Open access: Creative Commons BY-NC license
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    Thermochemical functionalisation of graphenes with minimal framework damage

    S. Hu, Z. P. L. Laker, H. S. Leese, N. Rubio, M. De Marco, H. Au, M. S. Skilbeck, N. R. Wilson and M. S. P. Shaffer, Chem. Sci., 2017, 8, 6149
    DOI: 10.1039/C6SC05603B

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