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Why are nanotubes used in electronics?
CNTs are considered a viable replacement for ITO transparent conductors in some applications. Fabricated as transparent conductive films (TCF), carbon nanotubes can potentially be used as a highly conductive, transparent and cost efficient alternative in flexible displays and touch screens, for instance.
What are nanotubes used for and why?
As of 2013, carbon nanotube production exceeded several thousand tons per year, used for applications in energy storage, device modelling, automotive parts, boat hulls, sporting goods, water filters, thin-film electronics, coatings, actuators and electromagnetic shields.
What are the advantages of using nanotubes?
CNTs have proven to be an excellent additive to impart electrical conductivity in plastics. Their high aspect ratio (about 1000:1) imparts electrical conductivity at lower loadings, compared to conventional additive materials such as carbon black, chopped carbon fiber, or stainless steel fiber.
Why carbon nanotubes are used?
The properties of carbon nanotubes make them ideal for enhancing different kinds of structures – for example, sports equipment, body armour, vehicles, etc., where they are being widely used. The nanotubes create networks within the composite material for instance to increase stiffness and material damping.
How do nanotubes work?
Nanotubes act as catalysts when an electric current is passed through them. This enables them to donate electrons to molecules that come in contact with the reaction sites. The reaction is similar to what happens in fuel cells, Chen said, so further research may help in making better fuel cells.
How might nanotubes be someday be used in computers?
These tubes are smaller than a nanometer wide, which means they could be packed very densely on chips. And because they have low electrical resistance, computers based on them could perform better and require less energy.
What are nanotubes used for BBC Bitesize?
Nanotubes have high tensile strength , so they are strong in tension and resist being stretched. Like graphene, nanotubes are strong and conduct electricity because they have delocalised electrons. Nanotubes can be added to other materials, for example in sports equipment, to make them stronger.
What are nanotubes used for GCSE?
Graphene is an allotrope of carbon. Its structure resembles a single layer of graphite . Graphene has a very high melting point . It is very strong because of its large regular arrangement of carbon atoms joined by covalent bonds .
What can nanotubes be used for in the future?
Because carbon nanotubes are highly electrically conductive, they have the ability to be a cost-effective replacement for metal wires. In the future, CNTs will likely compete with carbon fiber for high-end uses, particularly in weight-sensitive applications such as Kevlar. …
Why do nanotubes have high tensile strength?
Carbon nanotubes are the strongest and stiffest materials yet discovered in terms of tensile strength and elastic modulus respectively. This strength results from the covalent sp2 bonds formed between the individual carbon atoms.
Why are nanotubes a good catalyst?
The exceptional physical properties of carbon nanotubes (CNTs) such as large specific surface areas, excellent electron conductivity incorporated with the good chemical inertness, and relatively high oxidation stability makes it a promising support material for heterogeneous catalysis.