What is functionalization of carbon nanotubes?
The non-covalent functionalization is an alternative method for tuning the interfacial properties of nanotubes. The CNTs are functionalized non-covalently by aromatic compounds, surfactants, and polymers, employing π – π stacking or hydrophobic interactions for the most part.
What are the properties of carbon nanotubes?
Carbon Nanotubes Properties
- CNTs have high thermal conductivity.
- CNTs have high electrical conductivity.
- CNTs aspect ratio.
- CNTs are very elastic ~18% elongation to failure.
- CNTs have very high tensile strength.
- CNTs are highly flexible — can be bent considerably without damage.
- CNTs have a low thermal expansion coefficient.
How do you characterize carbon nanotubes?
Nanotubes are considered as nearly one-dimensional structures according to their high length to diameter ratio. Most important structures are single walled nanotubes (SWNTs) and multi walled nanotubes (MWNTs). A SWNT is considered as a cylinder with only one wrapped graphene sheet.
What is covalent functionalization?
Covalent functionalization of carbon nanotubes (CNTs) is the attachment of chemical moieties to the CNT tubular structure via the formation of covalent bonds, which share at least one pair of electrons between the CNT and the introduced chemical moiety.
What is meant by functionalization?
Functionalization is the process of adding new functions, features, capabilities, or properties to a material by changing the surface chemistry of the material. It is a fundamental technique used throughout chemistry, materials science, biological engineering, textile engineering, and nanotechnology.
What are carbon nanotubes advantages?
Advantages of Carbon Nanotubes (CNTs) Extremely small and lightweight making excellent replacement for metallic wires. 2. Resources required to produce them are plentiful and many can be made with only a small amount. of material.
How is Nano carbon made?
The first method for producing CNTs and fullerenes in reasonable quantities – was by applying an electric current across two carbonaceous electrodes in an inert gas atmosphere. The fullerenes or carbon nanotubes appear in the soot that is formed, while the CNTs are deposited on the opposing electrode.
Why functionalization is important?
Functionalization enhances the properties and characteristics of nanoparticles through surface modification, and enables them to play a major role in the field of medicine.
What is material functionalization?