Nanotechnology has created a huge change in the life of the populace around the world. Life is being made easy each day with the advent of more and more scientific research and new inventions. The nanoparticles have a huge impact on the life of every individual. The potential of these particles at their molecular forms is immense and has made a lot of positive effects on the life of individuals.
The placement of carbon nanotubes can be done in different forms, and based on the way they are arranged they are of two broad types. These are the single walled carbon nanotubes and the multiwalled carbon nanotubes. When compare both these forms of nanotube morphologies have various similarities, however they have various striking differences as well.
The single walled and the multi walled carbon nanotubes primarily differ in their internal structure. The single walled nanotubes are made of sp2 hybridized carbons and give them the shape similar to that of fullerenes. On the other hand the multiwalled carbon nanotubes are formed of concentric cylinders.
The number of these concentric cylinders varies in number and approximately 25 of them are present. These properties of the carbon nanotubes have made it possible for their usage in various forms of the technological improvements and applications.
Method of preparation of multiwalled carbon nanotubes
The efficiency of any process of manufacturing is based on its rate and amount of production. The scientists of Japan have devised a high yielding technique to produce multi walled carbon nanotubes. They have determined that these manufactured nanotubes have various beneficial physical properties which are capable of out doing the single walled carbon nanotubes.
The former thus have high reached applications in the manufacturing processes of sensors of gas, devices with dielectric nature, Nano electronic based devices and nanocomposites and various other forms. The method used for making these carbon Nano tubes is named the chemical vapor deposition method.
The uses of multiwalled carbon Nanotubes
The method is full proof and helps in the production of good quality and huge yield of carbon nanotubes. However there are various challenges that have to be faced for the commercialization of the uses of multiwalled carbon Nanotubes. These are
- Dispersion:
They are highly dispersible in the polymers and solutions when compared to the single walled carbon nanotubes.
- Purity:
The production processes of these multi walled forms results in the deposition of residues of metallic catalysts which is harmful for the performance.
- Defects:
Total number of defects in a sample uses of multiwalled carbon Nanotubestube is dependent on the total number of layers which are present.
Properties of multiwalled carbon nanotubes
Multi walled carbon nanotubes have various properties which helps it become quite an acceptable compound in the commercial world. Among the various properties that are found noteworthy on the basis of uses of multi walled carbon Nano tubes are:
- Electrical:
These are highly conductive, especially the outer most wall of the Nano tubes.
- Morphology:
These have a high aspect ratio with their lengths way higher than their diameters.
- Thermal:
These have high thermal stability and can withstand huge temperatures.
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