What are carbon nano tubes explain their properties and its applications briefly?

CNTs possess good electrical conductivity, an extremely high surface area (~1000 m2/g), and most importantly, their linear geometry makes their surface very accessible to the electrolyte. Research has demonstrated that CNTs have the highest reversible capacity of any carbon material for use in lithium-ion batteries [B.

What does it mean if a nanotube is semiconducting?

A nanotube is semiconducting if the energy level of the conduction band is high enough so that there is an energy gap between it and the valance band. In this case, additional energy, such as light, is needed for an electron to jump that gap to move to the conduction band.

What is the structure and properties of carbon nanotubes?

Most of the physical properties of carbon nanotubes derive from graphene. In graphene, carbon atoms are densely organized in a regular sp2-bonded atomic-scale honeycomb (hexagonal) pattern, and this pattern is a basic structure for other sp2 carbon bonded materials (allotropes) such as fullerenes and carbon nanotubes.

How are Cup stacked carbon nanotubes semiconducting?

CUP-STACKED CARBON NANOTUBES :- CSCNTs exhibit semiconducting behaviours due to the stacking microstructure of graphene layers. 11.

What kind of material trap fullerene in carbon nanotubes?

Peapod :- A carbon peapod is a novel hybrid carbon material which traps fullerene inside a Carbon nanotube. CUP-STACKED CARBON NANOTUBES :- CSCNTs exhibit semiconducting behaviours due to the stacking microstructure of graphene layers. 11.

What kind of structure is a carbon nanotube?

Carbon nanotubes also often refer to multi-wall carbon nanotubes (MWCNTs) consisting of nested single-wall carbon nanotubes weakly bound together by van der Waals interactions in a tree ring-like structure.

What makes a metallic nanotube a semiconducting material?

In a metallic nanotube, electrons can easily move to the conduction band. A nanotube is semiconducting if the energy level of the conduction band is high enough so that there is an energy gap between it and the valance band. In this case, additional energy, such as light, is needed for an electron to jump that gap to move to the conduction band.