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Issue 12, 2012
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Impurities in graphenes and carbon nanotubes and their influence on the redox properties

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Abstract

Carbon nanomaterials, such as carbon nanotubes and graphene-related materials are currently being heavily researched and widely proposed for numerous applications. It is often underestimated that these carbon nanomaterials are of complex nature, consisting of different components and often containing impurities. These impurities can dramatically influence, or even dominate various properties of carbon nanotubes and graphenes. Herein, we will show that impurities in such carbon nanomaterials are capable of exhibiting a striking effect on their redox properties. The impurities being discussed include metallic, nanographitic and amorphous carbon-based impurities commonly found in carbon nanotube samples; and metallic, nanographitic, and carbonaceous debris-based impurities in graphenes. We emphasize that the effects brought about by these impurities on the properties of the carbon nanomaterials can, in many cases be rather significant. As such, one needs to be cautious by clearly accounting for these effects observed for the nanomaterials before assigning any properties to the material itself.

Graphical abstract: Impurities in graphenes and carbon nanotubes and their influence on the redox properties

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Publication details

The article was received on 29 Aug 2012, accepted on 16 Sep 2012 and first published on 08 Oct 2012


Article type: Perspective
DOI: 10.1039/C2SC21374E
Chem. Sci., 2012,3, 3347-3355

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    Impurities in graphenes and carbon nanotubes and their influence on the redox properties

    M. Pumera, A. Ambrosi and E. L. K. Chng, Chem. Sci., 2012, 3, 3347
    DOI: 10.1039/C2SC21374E

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