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Formation of Boron Nitride (BN) Fullerene-Like Nanoparticles and (BN)xCy Nanotubes Using Carbon Nanotubes as Templates

A method for the synthesis of boron nitride (BN) fullerene-like nanoparticles (FNPs) and (BN)xCy nanotubes in large quantities using carbon nanotubes as templates is presented. Boron oxide vapor was reacted with nitrogen gas in the presence of carbon nanotubes (CNTs) at 1573 K in a boron nitride crucible to form BN-FNPs and BN-C nanotubes. FNPs usually display a clear polyhedral morphology with an inner hollow space. The shell thickness and inner empty spaces of these FNPs typically range from 2–8 nm and 5–25 nm, respectively. The (BN)xCy nanotubes have diameters and lengths similar to the starting CNTs, but have much more ordered structures. The growth mechanism is discussed.