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Oxidative functionalization of carbon nanotubes in atmospheric pressure filamentary dielectric barrier discharge (APDBD)

Okapalugo, TIT, Papakonstantinou, P, Murphu, H, McLaughlin, JAD and Brown, NMD (2005) Oxidative functionalization of carbon nanotubes in atmospheric pressure filamentary dielectric barrier discharge (APDBD). Carbon, 43 (14). p. 2951. [Journal article]

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URL: http://dx.doi.org/10.1016/j.carbon.2005.06.033

DOI: doi:10.1016/j.carbon.2005.06.033

Abstract

The surface compositional and any structural changes that occur on carbon nanotubes using air–atmospheric pressure dielectric barrier discharge (APDBD) for functionalization are investigated employing Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), X-ray diffraction (XRD), and neutron diffraction techniques. Atmospheric pressure plasmas (APP) are suggested to be particularly suitable for functionalization of aligned nanotubes, where wet chemical manipulation could damage or even destroy the highly desirable vertical alignment. In this work a detailed experimental study elucidating the effects of APDBD plasma treatment parameters (e.g. power density, discharge composition, inter-electrode gap and treatment time) on the electronic structure, physical, and chemical behaviour of carbon nanotubes has been conducted. In an atmospheric air we find an optimal oxidative functionalization of CNTs in our DBD system within few seconds (<5 s) at a discharge power of 0.5 kW. This investigation may find useful application as functionalization technique for CNT engineered devices and sensors.Elsevier 2005

Item Type:Journal article
Keywords:Carbon nanotubes; Oxidation; Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:412
Deposited By: Mrs Ann Blair
Deposited On:03 Nov 2009 13:08
Last Modified:09 Dec 2015 09:56

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