Growth Mechanism of a Hybrid Structure Consisting of a Graphite Layer on Top of Vertical Carbon Nanotubes
Figure 2
SEM pictures of different carbon nanostructures grown from thin nickel and cobalt films with different initial catalyst thickness in mixture of 5/495 sccm C2H2/Ar for 5 min at 4.148 Torr. (a) CNT from 1.1 nm Co, (b) CNT from 1.3 nm Ni. The inset shows a CNT with a particularly tapered tip; (c) CNT with a top porous carbon layer grown from 1.9 nm Co; (d) and (e) no growth of carbon structures from 2.2 nm and 5 nm Ni.
