Preparation of Microporous Carbon Adsorbents from the Birch Bark
N. M. MIKOVA1, N. V. CHESNOKOV1,2, V. A. DROZDOV3, B. N. KUZNETSOV1
1Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
2Krasnoyarsk Scientific Centre, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russia
3Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, Russia
Keywords: береста коры березы, щелочная активация, термообработка, углеродный материал, удельная поверхность, микропористость, birch bark, alkaline activation, thermal treatment, carbon material, specific surface, microporosity
Abstract
A preparation technique of microporous carbon materials from the initial and preliminarily modified under conditions of pyrolysis of the birch bark by the method of alkaline activation with potassium hydroxide was proposed. It was demonstrated that the preliminary thermal treatment of the birch bark in a range of 280-400 °C contributing to the formation of carbon materials with a developed specific surface S BET = 1300-2100 м2/g and micropore volume of 0.87 cm3/g exerts the greatest influence on the formation of the porous structure of the resulting samples.
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