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Mohammad, M. I.; Moosa, Ahmed A.; Potgieter, J. H.; Ismael, Mustafa K. (2013)
Publisher: Hindawi Publishing Corporation
Journal: ISRN Nanomaterials
Languages: English
Types: Article
Subjects: Article Subject
A facile method is proposed to use a computer controlled Arc discharge gap between graphite electrodes together with an yttria-nickel catalyst to synthesize carbon nanotubes under an Ar-H2 gases mixture atmosphere by applying different DC currents and pressure. This produces carbon nanotubes with decreased diameters and increased length. XRD evidence indicated a shift toward higher crystallinity nanotubes. Yields of the CNTs after purification were also enhanced.
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