Fig. 8.5. (a), (b) TEM images of the iron
nanorods encapsulated inside the carbon
nanotubes from aligned nanotube bundles.
(c) HREM image of a single-crystal iron
nanorod encapsulated inside a carbon
nanotube. The inset in (b) represents the
selected area electron diffraction (SAED)
pattern of an iron nanorod. Reproduced from
ref. [45], with permission.
8.2 Carbon Nanotubes 215