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

TIT Okapalugo, P Papakonstantinou, H Murphu, JAD McLaughlin, NMD Brown

Research output: Contribution to journalArticle

115 Citations (Scopus)

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 (
LanguageEnglish
Pages2951
JournalCarbon
Volume43
Issue number14
DOIs
Publication statusPublished - Nov 2005

Fingerprint

Carbon Nanotubes
Atmospheric pressure
Plasmas
Gravimetric analysis
Neutron diffraction
Air
Discharge (fluid mechanics)
Nanotubes
Electronic structure
Raman spectroscopy
X ray photoelectron spectroscopy
X ray diffraction
Electrodes
Chemical analysis

Keywords

  • Carbon nanotubes
  • Oxidation
  • Raman spectroscopy
  • X-ray photoelectron spectroscopy
  • X-ray diffraction

Cite this

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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; Brown, NMD.

Vol. 43, No. 14, 11.2005, p. 2951.

Research output: Contribution to journalArticle

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T1 - Oxidative functionalization of carbon nanotubes in atmospheric pressure filamentary dielectric barrier discharge (APDBD)

AU - Okapalugo, TIT

AU - Papakonstantinou, P

AU - Murphu, H

AU - McLaughlin, JAD

AU - Brown, NMD

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KW - Oxidation

KW - Raman spectroscopy

KW - X-ray photoelectron spectroscopy

KW - X-ray diffraction

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