Question

Why does pyrolysis activate carbon?

Answer 1

The slowgasification kinetics of carbons in steam or carbon dioxide allows gas molecules diffusing into the carbon micropores to create or enlarge micropores.

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Answer 2

Activated carbon, a widely used adsorbent, is mainly composed of carbonaceous material with high surface area and porous structures. ... Chemical activation, on the other hand, consists of impregnation of chemicals into the raw materials followed bypyrolysis (Budinova et al., 2006).