T. Adinaveen, J. Judith Vijaya, R. Sivakumar and L. John Kennedy
the total pore volume.
Electrical conductivity studies
The DC electrical conductivity (σ) was measured at room temperature by a two-probe method. 1 g of porous carbon dried at 110 °C over night was compressed in a hollow Pyrex glass cylinder with an inner diameter of 10 mm between two metal plungers at compression pressure ranging from 75.9 kPa to 742 kPa. The top and the bottom of the plungers were made of copper. They were connected to a Keithly 614 electrometer to measure the electrical conductivity of the samples. The compression pressure