P-67 竹のカスケード利用によるキシロオリゴ糖の製造と電気二重層キャパシタ電極用炭素材料の開発

抄録

In order to use bamboo as the starting material for some high-value products, the production of carbon material, which is activated carbon, for the electrode of electric double layer capacitor (EDLC) was attempted from the bamboo residue after the compressed hot water treatment, which can produce xylo-oligosaccharide from bamboo. The bamboo powder after the treatment of 200 degrees C for 1 hour was used as the starting material of carbon material. The yield from the residue to activated carbon was ca. 10 % regardless of the carbonization temperature. The estimated specific surface areas by BET method for the prepared samples were ca. 2500 m2/g, except for the sample carbonized at 800 degrees C. The capacitance values of the samples were small at high current density. The reason for the small values should be large IR drop.