Preparation of Binderless Activated Carbon Monolith from Pre-Carbonization Rubber Wood Sawdust by Controlling of Carbonization and Activation Condition

摘要

Binderless activated carbon monolith (ACM) was prepared from pre-carbonized rubber wood sawdust (RWSD). The effect of the carbonization temperature (400, 500, 600, 700, 800 dan 900 °C) on porosity characteristic of the ACM have been studied. The optimum carbonization temperature for obtaining ACM with high surface area of 600 °C with CO_2 activation at 800 °C for one hour. At this condition, the surface area as high as 733 m~2 g~(-1) could be successfully obtained. By improved the activation temperature at 900 °C for 2.5 h, it was found that the surface area of 860 m~2 g~(-1). For this condition, the ACM exhibit the specific capacitance of 90 F g~(-1). In addition the termogravimertic (TG)-differential termografimertic (DTG) and field emission scanning electron microscope (FESEM) measurement were also performed on the ACMs and the result has been studied. Finally, it was conclude that the high surface area of ACM from RWSD could be produced by proper selections of carbonization and activation condition.