Synthesis and acid catalysis of cellulose-derived carbon-based solid acid

Satoshi Suganuma, Kiyotaka Nakajima, Masaaki Kitano, Daizo Yamaguchi, Hideki Kato, Shigenobu Hayashi, Michikazu Hara

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)

Abstract

SO3H-bearing amorphous carbon, prepared by partial carbonization ofcellulose followed by sulfonation in fuming H2SO4, was applied as a solid catalyst for the acid-catalyzed hydrolysis of β-1,4 glucan, including cellobiose and crystalline cellulose. Structural analyses revealed that the resulting carbon material consists of graphene sheets with 1.5 mmol g-1 of SO3H groups, 0.4 mmol g-1 of COOH, and 5.6 mmol g-1 of phenolic OH groups. The carbon catalyst showed high catalytic activity for the hydrolysis of β-1,4 glycosidic bonds in both cellobiose and crystalline cellulose. Pure crystalline cellulose was not hydrolyzed by conventional strong solid Brønsted acid catalysts such as niobic acid, Nafion® NR-50, and Amberlyst-15, whereas the carbon catalyst efficiently hydrolyzes cellulose into water-soluble saccha-rides. The catalytic performance of the carbon catalyst is due to the large adsorption capacity for hydrophilic reactants and the adsorption ability of β-1,4 glucan, which is not adsorbed to other solid acids.

Original languageEnglish
Pages (from-to)1029-1034
Number of pages6
JournalSolid State Sciences
Volume12
Issue number6
DOIs
Publication statusPublished - 2010 Jun
Externally publishedYes

Keywords

  • Amorphous carbon
  • Brønsted acid
  • Hydrolysisof β-1,4glucan
  • Solid acidcatalyst

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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