Renewal of sp 2 bonds in graphene oxides via dehydrobromination

Chun Kiang Chua, Martin Pumera

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Graphene-based materials are emerging to become one of the most exciting candidates for various applications. There has been a keen interest in developing methods that will not only result in their bulk production, but could also generate graphene-based materials that possess good electrical and physical properties. The most convenient method towards bulk production of graphene-based materials is often via the reduction of graphene oxide. In this context, numerous reduction techniques have been previously applied based on standard organic chemistry reagents. Although most standard reducing agents work well in the removal of oxygen-containing groups from the graphene oxide surfaces, they do not theoretically result in the important restoration of the defective sp 2 carbon network. Particularly in this work, we focused on the restoration of the defective sp 2 carbon network of graphene oxide via a dehydrohalogenation method. This was achieved through a prior substitution of hydroxyl to bromine groups, followed by a dehydrobromination step. This strategy offers a great potential for the production of chemically reduced graphene of high conductivity.

Original languageEnglish
Pages (from-to)23227-23231
Number of pages5
JournalJournal of Materials Chemistry
Volume22
Issue number43
DOIs
Publication statusPublished - 2012 Nov 21

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Graphite
Oxides
Graphene
Restoration
Carbon
Bromine
Reducing Agents
Reducing agents
Hydroxyl Radical
Electric properties
Substitution reactions
Physical properties
Oxygen

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

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Renewal of sp 2 bonds in graphene oxides via dehydrobromination. / Chua, Chun Kiang; Pumera, Martin.

In: Journal of Materials Chemistry, Vol. 22, No. 43, 21.11.2012, p. 23227-23231.

Research output: Contribution to journalArticle

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