Nanofibrillar carbon from native cellulose

Shigenori Kuga, Dae Young Kim, Yoshiharu Nishiyama, R. Malcolm Brown

Research output: Contribution to journalConference articlepeer-review

21 Scopus citations

Abstract

Native cellulose samples with high crystallinity were pyrolyzed up to above 2000 C and the resulting carbon structures were examined. The drying method for water-swollen or water-suspended cellulose prior to pryrolysis was found to significantly affect preservation of the large surface areas of the original cellulose; i.e., solvent exchange drying (water-ethanol-t-butyl alcohol) of hydrogels and rapid-freeze drying of water suspended particles by spraying onto a cooled copper plate gave surface area of cellulose of 60-120 m2/g, about twice of those by ordinary freeze dyring. The carbons derived from these materials had nearly the same surface area as the starting cellulose and maintained the nanofibrillar morphology.

Original languageEnglish
Pages (from-to)[237]/13-[243]/19
JournalMolecular Crystals and Liquid Crystals
Volume387
Issue numberPART 2
DOIs
StatePublished - 2002
EventProceedings of the First International Symposium on Nanocarbons - Nagano, Japan
Duration: 14 Nov 200116 Nov 2001

Keywords

  • Cellulose
  • Nanofibrillar carbon
  • Surface area

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