What are the three types of nanotubes?
These three types of CNTs are armchair carbon nanotubes, zigzag carbon nanotubes, and chiral carbon nanotubes. The difference in these types of carbon nanotubes are created depending on how the graphite is “rolled up” during its creation process.
What are the properties of nanotubes?
A nanotube resembles a layer of graphene, rolled into a tube shape. Nanotubes have high tensile strength , so they are strong in tension and resist being stretched. Like graphene, nanotubes are strong, and they conduct electricity because they have delocalised electrons.
What are nanotubes used for?
Applications of carbon nanotubes and their uses. CNTs are well-suited for virtually any application requiring high strength, durability, electrical conductivity, thermal conductivity and lightweight properties compared to conventional materials. Currently, CNTs are mainly used as additives to synthetics.
Where are nanotubes used?
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.
How are nanotubes used?
What is single walled carbon nanotube?
Single-Walled Carbon Nanotubes (COOH) Single-Walled Carbon Nanotubes (OH) Single-wall carbon nanotubes (SWNTs) are a special class of carbon materials known as one-dimensional materials. They consist of sheets of graphene, rolled up to form hollow tubes with walls one atom thick.
What is condensed phase in chemistry?
Condensed Phase. Condensed phases are formed of corner sharing [SiO4]4- tetrahedra in order to minimize electrostatic repulsions between cations . From: Studies in Surface Science and Catalysis, 1994. Related terms: Decomposition; Monolayers; Polyimide Macromolecule; Protein; Ion; Flame Retardant [Alpha] Isotherm; Surface Pressure
Can a bulk condensed phase coexist with its vapours?
A bulk condensed phase can coexist with its vapours at a given temperature T if the vapour pressure is equal to the equilibrium (or saturation) pressure p e(T). For that reason p e is often called vapour pressure of the condensed phase.
How long did it take to get to the condensed phase?
“It’s taken the better part of 25 years to get to the point where we could put them in a condensed phase and make them highly dense and organized,” Loeb says, noting these mechanically interlocked molecules move about a nanometre some 300 times a second.
What is n type conduction in carbon nanotube?
However, some non-substitutional (intercalated or adsorbed) dopants introduced into a carbon nanotube, such as alkali metals and electron-rich metallocenes, result in n-type conduction because they donate electrons to the π-electron system of the nanotube.