Fullerene sensors
9 April 2007Fullerenes have polyhydral carbon cages in which carbon atom is bonded to three other neighbors. The whole arrangement is of five or six membered carbon ring. C60 is most extensively produced and studied among all the fullerenes since its discovery in 1985. It has a symmetrical structure and has numerous applications in various fields.
The structure of C60 fullerene actually has two different types of bonds one at the junction of two hexagons or 6-6 junctions and the other at the junction of pentagon and hexagon or 5-6 junctions.
Chemical reactivity of fullerene especially C60 plays an important role in its possible application. As it has been already mentioned above, fullerene has two types of bonds5-6 and 6-6 but 6-6 bond is responsible for all chemical transformations or functionalization in fullerenes. Due to the unusual physico-chemical properties, fullerene has been tried for a variety of applications.
Japanese scientists have studied the application of fullerene as gas sensors by measuring the change in electrical conductivity of the fullerenes. Actually the researchers observed that conductivity of fullerene either increases or decreases in presence of certain gases. This finding motivated the researchers to develop a suitable gas sensor having quick response and is reversible.
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Thanks for this wonderfull post…it’s really appreciable to my side…for getting such a nice concepts.
2/3 of this topic can be cited in the wiki. The most interesting question about sensoring explicated in one sentence at the end. And finally – no links to the Japanese scientists article…. I would not say thanks to the author.