| abstract |
The invention relates to a method for manufacturing activated carbon from tobacco leaves by simultaneouscarbonization andself-activation in an inert gas environment. The activated carbon produced by this new method has a specific surface area from 600 to 2000 m 2 g -1 , preferably 1700 m 2 g -1 , and has an extensiveamount of ultramicropores and mesopores, wherein the ratio of the micropore volume to the mesopore volume is at minimum of 3:1, up to 10:1, preferably 4:1.The average pore size (L 0 ) is in the range of 0.55-1.3nm, preferably 0.8–1.2nm, with a total pore volume of 0.2 to 1.25cm 3 g -1 . The invention also refers to an electrode comprising the activated carbon having the above properties as well as the electrochemical capacitor with such an electrode. |