| Abstract
| - The dependence of the electronic conductivity of activated carbon electrodes on their potential in electrolytesolutions was examined. Kapton polymer films underwent carbonization (1000 °C), followed by a mildoxidation process (CO2 at 900 °C) for various periods of time, to obtain carbons of different pore structures.A specially designed cell was assembled in order to measure the conductivity of carbon electrodes at differentpotentials in solutions. When the carbon electrodes possessed molecular sieving properties, a remarkabledependence of their conductivity on their charging state was observed. Aqueous electrolyte solutions containingions of different sizes were used in order to demonstrate this phenomenon. As the average pore size of theactivated carbons was larger, their molecular sieving ability was lower, and the dependence of their conductivityon their charging state regained its classical form. This behavior is discussed herein.
|
