Pengaruh Penambahan Zat Pendehidrasi terhadap Struktur Mikropori Material Karbon yang Dibuat dari Pirolisis Resin Phenol-tert. buthyl phenol-formaldehyde

Abstract

Due to its specific internal surface area, porous carbons are widely used in various application such as adsorbent, catalyst and catalyst support. This material can be made from natural materials such as wood, coconut shell, and coal, or synthetic polymers such as phenolic resin, polyacrylonitrile, etc. The disadvantage of natural materials as a precursor of porous carbon is that the properties of the material is affected by the age and environment where the material is originated. In this research, porous carbons were prepared by pyrolysis of resin that produced through polymerization of phenol, tert.buthyl phenol and formaldehyde at temperature 90oC and pH 8. The porous carbon obtained from this pyrolysis is expected to have high surface area and homogenous pore size distribution. The objected of this research was to study the effect of various dehydrating agent to microstructure of the porous carbon. Porous carbon preparation was initiated by preparation of resin polymer as a carbon precursor. The polymer was then carbonized in the reactor at 400-800oC for 1 hour in the nitrogen atmosphere. The carbon produced was soaked in dehydrating agent solution for 24 hour prior to further heating treatment at 400oC for 1 hour. The treated carbons were characterized for their surface area, bilangan iodin and pore size distribution. The results show that porous carbon soaked in ZnCl2 solution prior to the pyrolysis processes posses highest surface area. Key word: porous carbon, phenol-tertiarybuthylphenol-formaldehyde resin, pyrolysi