| 초록 |
For elucidation of the pore structure of super-activated carbon(SAC) based on the micro-domain structure model, a new experiment of inverse approach was designed by ball-mill treatment. Two SACs with an ultra-high specific surface area(~3000m2g-1) used Maxsorb-III as a non-graphitizable (derived from petroleum coke), carbon and M-30 as a graphitizable carbon (derived from MCMB). SACs consisting of micro-domains, are destroyed during ball milling. The formation mechanisms of their intra- and inter-particular pores are successfully explained by the N2 adsorption/desorption isotherms, FE-SEM, HR-TEM, STEM, and electrochemical techniques. In addition, their capacitance behaviors using different electrolytes as a probe are clearly matched with the change of micro- and mesopores through the ball-mill treatment. This novel micro-domain structure model for porous carbon materials successfully accounts for critical limitations of the conventional hierarchical pore structure model. |
