Fabrication of activated carbons with well-defined macropores derived from sulfonated poly(divinylbenzene) networks

Joji Hasegawa, Kazuyoshi Kanamori, Kazuki Nakanishi, Teiichi Hanada

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Poly(divinylbenzene) (PDVB) monoliths with well-defined macropores that have been sulfonated and carbonized to obtain macroporous carbon monoliths. The original macroporous PDVB networks have been synthesized by living radical polymerization accompanied by spinodal decomposition. Sulfonation prevents polymer networks from large shrinkage and weight loss during carbonization by heat-treatment in an inert atmosphere. In the case of PDVB gels sulfonated at 120 °C using conc. H2SO4, mesopores in the original skeletons as well as macropores are retained after carbonization. The obtained carbon monoliths are subsequently activated by CO2, which resulted in activated carbons. The specific surface area of the obtained activated carbons reaches up to 2360 m2 g-1.

Original languageEnglish
Pages (from-to)1757-1766
Number of pages10
JournalCarbon
Volume48
Issue number6
DOIs
Publication statusPublished - May 1 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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