Porous carbons with high surface area were successfully prepared from thermoplastic precursors, such as poly (vinyl alcohol) (PVA), hydroxyl propyl cellulose (HPC) and poly (ethylene terephthalate) (PET), mixing with MgO by the carbonization at 900°C in inert atmosphere. MgO in the carbonization products was dissolved out by using a diluted sulfuric or acetic acid. The pore structure of the carbons obtained was characterized by different analysis methods of adsorption/desorption isotherms of nitrogen at 77K.
The carbons prepared from PVA had relatively high micropore volume and large microporous surface area, but those of HPC and PET were rich in mesopores. BET surface area of the carbons obtained could reach to a high value, 800-1000m
2/g, even though any activation process was not applied.
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