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Assessing the temporal stability of surface functional groups introduced by plasma treatments on the outer shells of carbon nanotubes

Merenda, Andrea, des Ligneris, Elise, Sears, Kallista, Chaffraix, Thomas, Magniez, Kevin, Cornu, David, Schütz, Jürg A. and Dumée, Ludovic F. 2016, Assessing the temporal stability of surface functional groups introduced by plasma treatments on the outer shells of carbon nanotubes, Scientific reports, vol. 6, pp. 1-12, doi: 10.1038/srep31565.

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Title Assessing the temporal stability of surface functional groups introduced by plasma treatments on the outer shells of carbon nanotubes
Author(s) Merenda, Andrea
des Ligneris, Elise
Sears, Kallista
Chaffraix, Thomas
Magniez, Kevin
Cornu, David
Schütz, Jürg A.
Dumée, Ludovic F.ORCID iD for Dumée, Ludovic F. orcid.org/0000-0002-0264-4024
Journal name Scientific reports
Volume number 6
Article ID 31565
Start page 1
End page 12
Total pages 12
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2016
ISSN 2045-2322
Keyword(s) Carbon nanotubes and fullerenes
Surface chemistry
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
GRAPHENE OXIDE-FILMS
PRESSURE PLASMA
MECHANICAL-PROPERTIES
STRUCTURAL DEFECTS
RAMAN-SPECTROSCOPY
POLYMER SURFACES
FIELD-EMISSION
COMPOSITES
OXIDATION
WATER
Summary Plasma treatments are emerging as superior efficiency treatment for high surface to volume ratio materials to tune functional group densities and alter crystallinity due to their ability to interact with matter at the nanoscale. The purpose of this study is to assess for the first time the long term stability of surface functional groups introduced across the surface of carbon nanotube materials for a series of oxidative, reductive and neutral plasma treatment conditions. Both plasma duration dose matrix based exposures and time decay experiments, whereby the surface energy of the materials was evaluated periodically over a one-month period, were carried out. Although only few morphological changes across the graphitic planes of the carbon nanotubes were found under the uniform plasma treatment conditions, the time dependence of pertinent work functions, supported by Raman analysis, suggested that the density of polar groups decreased non-linearly over time prior to reaching saturation from 7 days post treatment. This work provides critical considerations on the understanding of the stability of functional groups introduced across high specific surface area nano-materials used for the design of nano-composites, adsorptive or separation systems, or sensing materials and where interfacial interactions are key to the final materials performance.
Language eng
DOI 10.1038/srep31565
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 0 Not Applicable
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30087867

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.