Recent reports on the various preparation routes of CNTs-based and their properties.

CNTs-based materials	Type of CNTs	Preparation method	Diameter (nm)	BET surface area (m2 g−1)	Length (nm)	Ref.
Bare CNTs	MWCNTs	Ultrasonic atomization and heat treatment	5–10	113.14	1000	92
CNTs/poly(etheretherketone)	MWCNTs	Coprecipitation injection molding	200	—	10 000–30 000	93
CNTs/Cu	MWCNTs	Alloying method	15–20	—	150–300	94
CNTs	—	Methane chemical vapor depositions	40–60	49.9–128.5	—	95
CNTs	SWCNTs	Electric arc method	20	—	700	96
Polymer/CNTs	MWCNTs	Mechanical mixing process	10–15	—	100–1000	97