Journal of Siberian Federal University. Chemistry / Influence of Modified Agents on Carbonization Birchwood Sawdust and Coal-tar Pitch Mixtures

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Issue
Journal of Siberian Federal University. Chemistry: 2008, Vol. 1, Issue 4
Authors
Tsyganova, Svetlana I.; Shvezov, Alexandr N.; Korol’kova, Irina V.; Chesnokov, Nikolai V.; Kuznetzov, Boris N.
Contact information
Светлана И. Цыганова, Александр Н. Швецов, Ирина В. Королькова, Борис Н. Кузнецов: Институт химии и химической технологии СО РАН, ул. К.Маркса, 42, Красноярск, 660049 Россия, e-mail: ; Николай В. Чесноков: Институт химии и химической технологии СО РАН, ул. К.Маркса, 42, Красноярск, 660049 Россия, Сибирский федеральный университет, пр. Свободный, 79, Красноярск, 660041 Россия;
Keywords
porous carbon materials; birchwood; coal-tar pitch; carbonization; activation; properties
Abstract

Structural changes during preparing and carbonization of carbonic materials from birch sawdust and coal-tar pitch mixtures have been presented. It has been shown that adding of coal-tar pitch in birch sawdust increase a yield of carbonic material during carbonization. It has been established that maximum of specific surface area (more than 1500 m2∙g-1) have washed away by water the carbonic materials obtained for carbonization of composites modified with KOH and KOH-ZnCl2.at 800°C. Modification of composite with phosphoric acid reduces to production more strong shaped carbonic material with specific surface area up to 500 m2∙g-1. It has been established that high-temperature air processing of all samples promotes developing of a void structure of carbonic products.

Pages
389-398
Paper at repository of SibFU
http://elib.sfu-kras.ru/handle/2311/911