Abstract
Typical D-glucose derivatives were treated with iodine and carbonized at 800 °C in order to investigate the effect on carbonization yield and porosity caused by iodine stabilization of the saccharide materials. Carbonization yield was similarly increased by iodine-assisted polymerization of the precursor polymer in every raw derivative even after a small amount of iodine treatment. There was no apparent difference among the saccharides used. On the other hand, the characteristic development of micropores in the carbons produced from precursors that had received the iodine treatment depended strongly on the raw material. Cellulose and chitosan which undergo solid-phase carbonization showed no micropore development even after extensive iodine stabilization treatment, whereas D-glucose and starch which normally undergo liquid-phase carbonization contain a significant amount of microporosity if the iodine stabilization was sufficient to result in solid-phase carbonization.
