TEMPLATE SYNTHESIS METHODS OF MESOPOROUS CARBONS WITH ZEOLITES

摘要

Mesoporous carbons have recently attracted much attention because of their applications as adsorbents for large hydrophobic molecules and biomolecules, catalyst supports, components of electrochemical double-layer capacitors, fuel cells and Lithium batteries, chromatographic packings and templates for the synthesis of inorganic nanostructures. Template synthesis is a promising technology to prepare these mesoporous carbon materials with large surface area and uniform pores. These carbons are obtained by the pyrolysis of a carbonaceous precursor in the inner of a porous template, as zeolites. In the present study, we report the details of the synthesis methods for preparing mesoporous carbons by different impregnation conditions of different zeolites with Petroleum Pitch, and discuss what synthesis conditions are the key to control the mesoporous/microporous structure of the resultant carbons. The resulting carbon structure can be controlled via the selection of the template, the impregnation method, the templating mixture and the pyrolysis conditions such as carbonization temperature, heating rate and reaction time.