• Media type: E-Article
  • Title: Highly otimized nitrogen-doped MWCNTs through in-depth parametric study using design of experiments
  • Contributor: Plunkett, Alexander [Author]; Kröning, Katharina [Author]; Fiedler, Bodo [Author]
  • Corporation: Technische Universität Hamburg ; Technische Universität Hamburg, Institut für Keramische Hochleistungswerkstoffe ; Technische Universität Hamburg, Institut für Kunststoffe und Verbundwerkstoffe
  • Published: 20 April 2019
  • Published in: Nanomaterials ; 9(2019), 4, Artikel-ID 643, Seite 1-16
  • Language: English
  • DOI: 10.3390/nano9040643; 10.15480/882.2262
  • Identifier:
  • Keywords: N-CNT ; pyridine ; CVD ; DoE ; graphitization ; Raman
  • Origination:
  • Footnote: Sonstige Körperschaft: Technische Universität Hamburg
    Sonstige Körperschaft: Technische Universität Hamburg, Institut für Keramische Hochleistungswerkstoffe
    Sonstige Körperschaft: Technische Universität Hamburg, Institut für Kunststoffe und Verbundwerkstoffe
  • Description: The in-situ nitrogen doping of multiwalled carbon nanotubes via chemical vapor deposition is investigated employing design of experiments (DoE). The establishment of empirical DoE models allowed for the prediction of product features as a function of process conditions in order to systematically synthesize tailor-made nitrogen-doped carbon nanotubes. The high informative content of this approach revealed effects of individual parameters and their interaction with each other. Hence, new valuable insights into the effect of temperature, injection rate, and carrier gas flow on the doping level were obtained which give motivation to approach further theoretical studies on the doping mechanism. Ultimately, competitive nitrogen-doped carbon nanotube features were optimized and yielded promising combinations of achieved doping level, graphitization, and aspect ratios in comparison to present literature values.
  • Access State: Open Access