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It contains information about Carbon nanotubes which are extensively used in nanotechnology for various puposes. It discusses various types of CNTs along with the three main ways to synthesize them. The three main ways are Arc Discharge, Laser Ablation and Chemical Vapour Deposition. It also discusses various applications os CNTs and their properties.
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It contains information about Carbon nanotubes which are extensively used in nanotechnology for various puposes. It discusses various types of CNTs along with the three main ways to synthesize them. The three main ways are Arc Discharge, Laser Ablation and Chemical Vapour Deposition. It also discusses various applications os CNTs and their properties.
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Synthesis of CNTs
1.
Carbon Nanotubes Introduction
& Synthesis
2.
3.
Unique material
properties
4.
Nearly one-dimensional
structures
5.
6.
Zigzag structure
7.
Chiral structureDefects result
in bends and transitions
8.
9.
High axial
mechanical strength
10.
Special electrical
properties: Metallic Semi conducting
11.
Synthesis: growth mechanism
Metal Catalyst Tip Growth / Extrusion Growth
12.
13.
Arc-Discharge
14.
15.
Catalyst used
16.
Yield
17.
18.
Large scale
possible
19.
Relatively cheap
20.
SWNTs /
MWNTs
21.
Aligned nanotubes
22.
23.
MWNTs /
SWNTs
24.
Yield <70%
25.
Use of
very strong laser
26.
Expensive (energy
costs)
27.
28.
Many side-products
29.
MWNTs and
SWNTs
30.
31.
Carbon clusters
32.
33.
34.
Thermal oxidation
35.
36.
37.
Selective functionalization
of nanotubes
38.
Annealing