871208.fig.004a
(a)
871208.fig.004b
(b)
871208.fig.004c
(c)
Figure 4: (a) High-resolution image, (b) selected-area electron diffraction pattern of Co2C-encapsulated carbon nanocapsule in the specimen heated at 1273 K, (c) High-resolution image of the interface between the encapsulated Co2C cluster and the graphitic layers in Co2C-encapsulated carbon nanocapsule depicted in (a).