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Graphene in Supercapacitors challenged by used cigarette butts!

It seems that Korean scientists having taken the thorny problem of the huge quantity of cigarette butts that are discarded annually across the globe and addressed it by finding a role for them coating electrodes in supercapacitors.

They have pyrolysed the cellulose acetate fibres to produce a carbon that can perform better than graphene and carbon nanotubes in terms of storing and releasing energy. The fibres are only found in the filter but produce a very high surface area carbon with pores in a wide variety of sizes allowing for a high power density and so fast charging and discharging.

 

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