Study of Mg Powder as Catalyst Carrier for the Carbon Nanotube Growth by CVD

Figure 5

SEM and TEM images of the products obtained by CVD at different conditions using 16%Ni4%Y/Mg catalyst (a, b, c, d) at 450^∘C, (e) at 500^∘C, and (f) at 600^∘C.

(a)

(b)

(c)

(d)

(e)

(f)