Synthesis of Nickel-Encapsulated Carbon Nanocapsules and Cup-Stacked-Type Carbon Nanotubes via Nickel-Doped Fullerene Nanowhiskers
Figure 5
(a) Bright-field images of Ni-encapsulated carbon nanocapsules prepared by heating Ni-doped C60 nanowhiskers (specimen B) at 1173 K. The nanocapsules form chain structures. (b) High-resolution image of the chain of Ni-encapsulated carbon nanocapsules.