Abstract

Boron nitride (BN) nanotubes were prepared as mixtures of α-Fe 2O 3, B and carbon powders, followed by annealing at 1100 °C for 2 h on alumina boats in a furnace under nitrogen atmosphere. BN nanotubes with cup-stacked structures were observed by high-resolution electron microscopy, and molecular mechanics calculation showed that the nanotube structures would be stabilized by stacking of BN cup-layers.

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