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

Figure 1

(a) SEM images of the formation of particles for Co₂₀Fe₈₀ and Co₅₀Fe₅₀ as a function of initial catalyst thickness after plasma pretreatment in H₂ atmosphere for 10 min. (b) Initial catalyst thickness dependence of average particle size and particle density.

(a)

(b)