Heterodoped nanotubes: Theory, synthesis, and characterization of phosphorus - Nitrogen doped multiwalled carbon nanotubes

Eduardo Cruz-Silva, David A. Cullen, Lin Gu, Jose Manuel Romo-Herrera, Emilio Muñoz-Sandoval, Florentino López-Urías, Bobby G. Sumpter, Vincent Meunier, Jean Christophe Charlier, David Smith, Humberto Terrones, Mauricio Terrones

Research output: Contribution to journalArticle

139 Scopus citations

Abstract

Arrays of multiwalled carbon nanotubes doped with phosphorus (P) and nitrogen (N) are synthesized using a solution of ferrocene, triphenyl-phosphine, and benzylamine in conjunction with spray pyrolysis. We demonstrate that iron phosphide (Fe3P) nanoparticles act as catalysts during nanotube growth, leading to the formation of novel PN-doped multiwalled carbon nanotubes. The samples were examined by high resolution electron microscopy and microanalysis techniques, and their chemical stability was explored by means of thermogravimetric analysis in the presence of oxgen. The PN-doped Structures reveal important morphology and chemical changes when compared to N-doped nanotubes. These types of heterodoped nanotubes are predicted to offer many new opportunities in the fabrication of fast-response chemical sensors.

Original languageEnglish (US)
Pages (from-to)441-448
Number of pages8
JournalACS nano
Volume2
Issue number3
DOIs
StatePublished - Mar 1 2008

Keywords

  • Chemical vapor deposition
  • Doping
  • Electronic structure
  • Multiwalled carbon nanotubes

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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    Cruz-Silva, E., Cullen, D. A., Gu, L., Romo-Herrera, J. M., Muñoz-Sandoval, E., López-Urías, F., Sumpter, B. G., Meunier, V., Charlier, J. C., Smith, D., Terrones, H., & Terrones, M. (2008). Heterodoped nanotubes: Theory, synthesis, and characterization of phosphorus - Nitrogen doped multiwalled carbon nanotubes. ACS nano, 2(3), 441-448. https://doi.org/10.1021/nn700330w