Effect of Different Catalyst Deposition Technique on Aligned Multiwalled Carbon Nanotubes Grown by Thermal Chemical Vapor Deposition

Figure 3

FESEM images of (a) MWCNT growth of pretreated sample (inset: presence of nanotubes), (b) MWCNT growth on Al-Fe (inset: presence of nanotubes), (c) MWCNT growth on Al₂O₃-Fe (inset: presence of nanotubes), (d) aligned array of MWCNT grown on pretreated sample, (e) aligned MWCNT growth on Al-Fe, and (f) aligned MWCNT growth on Al₂O₃-Fe.

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