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Purity evaluation and influence of carbon nanotube on carbon nanotube/graphite thermal stability

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Publication Date
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Queensland University of Technology ePrints Archive
Keywords
  • 030304 Physical Chemistry Of Materials
  • 030199 Analytical Chemistry Not Elsewhere Classified
  • Graphite
  • Mixture
  • Single Walled Carbon Nanotubes
  • Thermogravimetry
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Abstract

High resolution thermogravimetry has been used to evaluate the carbonaceous content in a commercial sample of single-walled carbon nanotube (SWNT). The content of SWNTs in the sample was found to be at least 77mass% which was supported by images obtained with scanning and transmission electron microscopies (SEM and TEM). Furthermore, the influence of SWNT addition on the thermal stability of graphite in mixtures of SWNT/graphite at different proportions was investigated. The graphite stability decreased with the increased of SWNT content in the overall range of composition. This behavior could be due to the close contact between these carbonaceous species as determined by SEM analysis.

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