Abstract

The effect of addition of the iron graphite intercalation compound (GIC-FeCl 3) to coal tar pitch, used as a carbon precursor, on the porosity development in the resulting steam activated chars, was studied. Different conditions of chars preparation have been considered. Benzene (298 K), nitrogen (77 K), carbon dioxide (298 K) and water (298 K) sorption measurements were taken as basis for the porosity evaluation. The changes in the development of pores of different categories, caused by added amounts of GIC-FeCl 3 to coal tar pitch, temperature of carbonization and activation, and the degree of activation, are discussed.

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