Transcript THE DISCOVERY, STRUCTURE, PROPERTIES AND APPLICATION …

THE DISCOVERY, STRUCTURE,
PROPERTIES AND APPLICATION OF
CARBON NANOTUBES
by Victoria Riabicheva
Olexandra Tupalo
English supervisor- Ekaterina Kuznetsova
Science supervisor- Oleg Uzlov
Carbon nanotubes are molecularscale tubes of graphitic carbon with
outstanding properties.
the Japanese scientist Sumio Iijima
discovered fullerene-related carbon
nanotubes in 1991
There are three distinct ways in which a
graphene sheet can be rolled into a tube
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armchair
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zig-zag
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chiral
Synthesis
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The arc-evaporation
method
The catalyst
Laser ablation
plasma (violet) improves the growth
conditions for carbon nanotubes in
this chemical vapor deposition chamber.
A heating element (red) provides the
necessary substrate temperature
Properties
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tensile strength 63 GPa
can withstand a pressure up to 24GPa
without deformation
moderate semiconductor
Application
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Textiles
Concrete
Polyethylene
Sports equipment
Space elevator
Synthetic muscles
Fire protection
Air pollution filter
Water filter
Defects
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High levels of such defects can
lower the tensile strength by up to
85%
Toxicity
Stone-Wales defect
Thank you for your attention