Nanocomposites: Synthesis and elemental mapping of aligned B-C-N nanotubes

D. Golberg, Y. Bando, M. Mitome, K. Kurashima, N. Grobert, M. Reyes-Reyes, H. Terrones, Mauricio Terrones Maldonado

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28 Scopus citations

Abstract

We report on the synthesis and elemental mapping of ropes composed of aligned multi-walled B-C-N nanotubes using energy-filtered (Omega filter) high-resolution transmission electron microscopy. The nanotube ropes were synthesized by reacting aligned CNx (x ≤ 0.1) nanotubes with B2O3 in a N2 atmosphere at 1985-2113 K. It was found that the overall B-N content within the ropes increases with temperature. Furthermore, BN-rich tubular ropes obtained at higher synthesis temperatures exhibit complex shell assembly: BN-rich, C-rich and B-C-N layers were found to exist. The latter nanostructure represents a unique 'nanocable' with either conducting or semiconducting shells shielded with insulating BN-rich layers. We envisage that the novel nanocables will also exhibit high-oxidation resistance at elevated temperatures.

Original languageEnglish (US)
Pages (from-to)1-7
Number of pages7
JournalChemical Physics Letters
Volume360
Issue number1-2
DOIs
StatePublished - Jul 3 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Golberg, D., Bando, Y., Mitome, M., Kurashima, K., Grobert, N., Reyes-Reyes, M., Terrones, H., & Terrones Maldonado, M. (2002). Nanocomposites: Synthesis and elemental mapping of aligned B-C-N nanotubes. Chemical Physics Letters, 360(1-2), 1-7. https://doi.org/10.1016/S0009-2614(02)00783-2