Multiwalled Carbon Nanotube Synthesis Using Arc Discharge with Hydrocarbon as Feedstock

Figure 15

FTIR spectra of synthesized MWCNTs for arc currents 50, 70, and 90 A at pressures (a) 100 torr, (b) 300 torr, and (c) 500 torr.

(a)

(b)

(c)