Supramolecular structure of activated carbons prepared by heat-shock alkali activation of coals.
Authors
V. О. Sabierova
L. M. Litvinenko Institute of Physical-Organic and Coal Chemistry NAS of Ukraine
Abstract
Coals of different coal rank (СR) are easily converted to highly porous adsorbents upon alkaline (KOH) activation with heat shock – rapid introducing samples into a reactor zone preheated up to 800 °C. At a low KOH/coal ratio (1 g/g), activated carbons (ACs) are formed with a developed specific surface area S, depending on the CR (table). All ACs are microporous materials; the micropore (≤2 nm) surface fraction is dominant (≥90 %).
