TY - JOUR
T1 - Nanocomposites
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 Maldonado, Mauricio
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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U2 - 10.1016/S0009-2614(02)00783-2
DO - 10.1016/S0009-2614(02)00783-2
M3 - Article
AN - SCOPUS:0037014723
VL - 360
SP - 1
EP - 7
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-2
ER -