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; M. Terrones

doi:10.1016/S0009-2614(02)00783-2

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, M. Terrones

Research output: Contribution to journal › Article › peer-review

29 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 CN_x (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 language	English (US)
Pages (from-to)	1-7
Number of pages	7
Journal	Chemical Physics Letters
Volume	360
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(02)00783-2
State	Published - Jul 3 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(02)00783-2

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title = "Nanocomposites: Synthesis and elemental mapping of aligned B-C-N nanotubes",

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.",

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T2 - Synthesis and elemental mapping of aligned B-C-N nanotubes

AU - Golberg, D.

AU - Bando, Y.

AU - Mitome, M.

AU - Kurashima, K.

AU - Grobert, N.

AU - Reyes-Reyes, M.

AU - Terrones, H.

AU - Terrones, M.

PY - 2002/7/3

Y1 - 2002/7/3

N2 - 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.

AB - 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.

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

Abstract

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