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Pure single crystal tubes formed from C 60 molecules, with a face-centered cubic (fcc) structure were fabricated by a liquid–liquid interfacial precipitation method using C 60 powder. A bulk transition from fcc to a simple cubic structure and a surface transition from (1×1) to (2×2) have been observed around 246K (bulk transition temperature T B ) and 214K (surface transition...
The development during early growth of a multi-wall carbon nanotube film by thermal CVD with acetylene (C 2 H 2 ) and hydrogen at 750°C has been characterized in detail by cross-section transmission electron microscopy. The studies provide information on the nanotube growth mechanisms and the complex catalyst transformations that are essential for the onset of different growth stages...
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