IMMERSION CALORIMETRY CHARACTERISATION OF ACTIVATED CARBON FIBRES PREPARED FROM NOMEX ARAMID FIBRES

摘要

The enthalpies of immersion of Nomex-derived ACF in CCl_4 are proportional to the BET (N2, 77 K) surface areas at high BO degrees; discrepancies exist, however, at BOs in the 20-50% range. The enthalpies of immersion into polar liquids with different acid-basic properties indicate that a parallel development of surface acidity and basicity takes place with increasing extent of activation.