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Table 3 Summary and comparison of three most common CNT synthesis methods

From: Carbon nanotubes: properties, synthesis, purification, and medical applications

Method Arc discharge Laser ablation CVD
Yield rate >75% >75% >75%
SWNT or MWNT Both Both Both
Advantage Simple, inexpensive, high-quality nanotubes Relatively high purity, room-temperature synthesis Simple, low temperature, high purity, large-scale production, aligned growth possible
Disadvantage High temperature, purification required, tangled nanotubes Method limited to the labscale, crude product purification required Synthesized CNTs are usually MWNTs, defects