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Boron nitride nanotubes with 100–150nm in diameter were synthesized by annealing a mixture of iron oxide and boron powders at 1373K in nitrogen atmosphere. By adding carbon powders to the mixture, boron nitride nanotubes grew into distinctive structures, which are cup-stacked and bamboo-like structure. Carbon nanotubes and nanowires with 100nm and 200–300nm in diameter were also synthesized by annealing...
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