Journal
HOLZFORSCHUNG
Volume 67, Issue 5, Pages 587-594Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/hf-2012-0188
Keywords
activated carbons; alder wood; benzene desorption isotherms; birchwood; charcoal; limited evaporation technique (LET); sodium hydroxide activation; supercapacitor
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Highly developed nanoporous carbon materials have been prepared by a two-stage thermocatalytic process. In the first step, alder (Alnus rhombifolia) and birchwood (Betula pendula) were carbonized with and without a dehydration catalyst (H3PO4); in the second step, the material was activated by means of NaOH. The dependence of the porous structure of activated carbons from process parameters was characterized by the novel limited evaporation technique. Specific surface areas, pore volumes, and radii were calculated according to the Derjaguin-Broekhoff-de Boer theory. The tests of activated carbons as electrodes in supercapacitors demonstrated their high potential for this application.
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