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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kurashima, K.
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Topics
Publications (6/6 displayed)
- 2006In situ electrical probing and bias-mediated manipulation of dielectric nanotubes in a high-resolution transmission electron microscopecitations
- 2002Nanocompositescitations
- 2001Synthesis, HRTEM and electron diffraction studies of B/N-doped, C and BN nanotubescitations
- 2000Large-scale synthesis and HRTEM analysis of single-walled B- and N-doped carbon nanotube bundlescitations
- 2000Ropes of BN multi-walled nanotubescitations
- 2000MoO3 -promoted synthesis of multi-walled BN nanotubes from C nanotube templatescitations
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article
Synthesis, HRTEM and electron diffraction studies of B/N-doped, C and BN nanotubes
Abstract
<p>Large-scale synthesis of multi-walled BN and single-walled B/N-doped C nanotubes (NT) from C nanotube templates was carried out. The NTs were produced through heating of C templates with B<sub>2</sub>O<sub>3</sub> in a flowing N<sub>2</sub> atmosphere at 1503-1773 K. The NTs were analyzed by means of a JEM-3000F high-resolution field emission transmission electron microscope operated at 300 kV and equipped with a parallel detection electron energy loss spectrometer. Particular attention was given to the effects of C template morphology, synthesis temperature and metal oxide promoters on the yield and chemical composition of NTs. Ropes consisting of tens of multi-walled BN NTs were synthesized at 1773 K using MoO<sub>3</sub> and PbO promoters. Ropes of single-walled B/N-doped C NTs were produced at high yields by synthesis at 1553 K. Packing of NTs in the ropes and nanotube helicities were studied by electron diffraction. B/N-doped C and BN NT morphologies, formation mechanism and atomic structures are discussed in this paper.</p>