Microporous carbons prepared from cationic surfactant-resorcinol/formaldehyde composites

Microporous carbons have been synthesized by the carbonization of cationic surfactant-resorcinol/formaldehyde (RF) composites, which were themselves formed by electrostatic organic-organic interaction. The porous structure produced by the decomposition of the surfactant plays an important role for the gasification of the RF polymer at higher temperatures. The pore size of the carbon prepared from tetrapropylammonium bromide (TPAB)-RF, detyltrimethylammonium bromide (C(16)TAB)-RF and decyltrimethylammoniurn bromide (C(10)TAB)-RF mixtures can be estimated as 0.53nm from the Horvath-Kawazoe method using N-2 adsorption isotherms. Their pore size distributions were very narrow, showing that the microporous carbons derived from surfactant-RF mixture may have promise as adsorbents and membrane materials. (C) 2004 Elsevier Ltd. All rights reserved.