Issue 2, 2008

Crystalline-to-amorphous transformation of cellulose in hot and compressed water and its implications for hydrothermal conversion

Abstract

The behaviour of cellulose was studied in water at high temperatures and high pressures by in situ high-resolution optical microscopy. It was found that crystalline cellulose underwent transformation to an amorphous state in hot and compressed water, which was followed by complete dissolution. The finding shows that the chemical stability of cellulose in hot and compressed water is determined by the unique properties of cellulose that arise from extensive networks of hydrogen bonds among the cellulose chains in the crystal. The implications of the observation for hydrothermal conversion of cellulose are discussed.

Graphical abstract: Crystalline-to-amorphous transformation of cellulose in hot and compressed water and its implications for hydrothermal conversion

Supplementary files

Article information

Article type
Paper
Submitted
05 Sep 2007
Accepted
28 Nov 2007
First published
14 Dec 2007

Green Chem., 2008,10, 191-196

Crystalline-to-amorphous transformation of cellulose in hot and compressed water and its implications for hydrothermal conversion

S. Deguchi, K. Tsujii and K. Horikoshi, Green Chem., 2008, 10, 191 DOI: 10.1039/B713655B

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