Study of High Porous Carbons Prepared by the Alkaline Activation of Anthracites

Abstract

The influence of alkaline activation on the development of anthracite porous structure under the variation of different factors: anthracite and metal hydroxide origin, their mass ratio in a mixture, activation temperature and duration has been studied. The highest development of anthracite surface area was reached with mass ratio of anthracite/alkali 1:5-7 and the final heating temperature of 800 °С. Under these conditions the maximum value of surface area of carbon material was 2900 m2/g in case of КОН activated Siberian anthracite and 2550 m2/g for NaOH activated Ilovaisky anthracite.