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Fullerene Advanced - Buckyball - Nanotube
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Overview         (For age - group : Above 16 )

This educational chemistry animation with audio explains synthesis or preparation of fullerene - carbon nanotube and buckyball by electric arc discharge, chemical vapor deposition and laser ablation.

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Size (KB) 1094 US$    2.00 Rs. 132.00
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Time (hr:min:sec) 0:16:0
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This animation has audio.This animation contains sound
Category : Chemistry
Type : Animation with sound
Animation Type : Advanced

Total animation length
: 16 minutes

The animated chemistry presentation covers :
Synthesis of fullerene by
- Electric Arc Discharge
- Laser Ablation
- Chemical vapor deposition
     - Base growth mechanism

 

Snapshots         

synthesis of fullerene with chemical vapor deposition method

Chemical vapor deposition process of producing nanotubes uses a target substrate containing catalysts in a quartz tube; a hydrocarbon gas breaks apart and deposits carbon on the substrate. Through this method carbon nanotubes are produced using base growth mechanism.
Fullerene synthesis - electric arc discharge method for buckyball and nanotube
The carbon arc discharge is used for synthesis of C60 fullerenes, and for production of carbon nanotubes. Two carbon rods placed facing each other with about 1 mm gap, in an enclosure that is filled with either helium or argon gas. The arc-vaporization of carbon creates nanotubes.
Laser ablation, electric arc discharge, chemical vapor deposition
Smalley's group at Rice University used Laser ablation or vaporization method for lab synthesis of buckyballs, single walled and multi walled (SWNT and MWNT) nanotubes. It is now being used in the industry. The type of fullerene molecule produced depends on the presence of catalyst.
Details of the animation/ movie /software

This animation "Fullerene Synthesis - Production of Buckyball and Nanotube " gives details about the three common processes of producing fullerene molecules.

In the previous 15 years, artificial preparation of fullerenes has come up in a big way; three methods are primarily used for synthesis - laser ablation, chemical vapor deposition, and electric arc discharge. Each has its pros and cons.

Electric arc discharge can easily produce SWNT, MWNT and is not too expensive but tubes are short and have random sizes. Chemical vapor deposition produces good quality carbon nanotubes with long length but mainly produces multi-walled carbon nanotubes (MWNT). Laser Ablation produces Single walled carbon nanotubes (SWNT) with low defects however it is a costly process.

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Q & A
Q1: what is the role of catalysts in the growth of carbon nanotubes ??? Azam 24/9/2013
Ans:
   
Q2: ALI.. ALI 23/8/2013
Ans:
   
Q3: what is the hydro carbon gas used in the first method sai krishna 13/7/2007
Ans: Methane, Ethylene, Acetylene, and though not a hydrocarbon but Carbon Monoxide is also used
   


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