What are Fullerences? How are they prepared?

1.	What are Fullerences? How are they prepared?
Answer» Carbon exhibits many allotropic forms: both crystallins as well as amorphous. Diamond and graphite are two well known crystalline forms of carbon, third form of carbon known as fullerences. Fullerences are made by heating of graphite in an electric are in the presence of inert gases such as helium or argon. The sooty material formed by condensation of vapourised Ca small molecular consists of-mainly C₆₀ with smaller quantity of C₇₀ and traces of fallerences consiting of even number of carbon atoms upto 350 or above.

Answer»

Carbon exhibits many allotropic forms: both crystallins as well as amorphous. Diamond and graphite are two well known crystalline forms of carbon, third form of carbon known as fullerences.

Fullerences are made by heating of graphite in an electric are in the presence of inert gases such as helium or argon. The sooty material formed by condensation of vapourised Ca small molecular consists of-mainly C₆₀ with smaller quantity of C₇₀ and traces of fallerences consiting of even number of carbon atoms upto 350 or above.

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