Investigation of Low-Pressure Bimetallic Cobalt-Iron Catalyst-Grown Multiwalled Carbon Nanotubes and Their Electrical Properties

Figure 4

SEM images of MWCNTs grown on 10 nm thick catalysts of (a) Co₂₀Fe₈₀ and (b) Co₅₀Fe₅₀. The close-up views are taken from the top of the CNTs.

(a)

(b)