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High-yield Carbonization of Cellulose by Sulfuric Acid Impregnation
Authors:Dae-Young Kim  Yoshiharu Nishiyama  Masahisa Wada  Shigenori Kuga
Affiliation:(1) Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan, 113-8657
Abstract:The carbonization of cellulose with sulfuric acid impregnation was studied by thermogravimetric analysis and scanning electron microscopy. The mass yield of carbon after 800°C treatment in nitrogen increased to 2–3 times by addition of small amounts of sulfuric acid. The sulfuric acid is considered to work as dehydration catalyst, thus suppressing the release of volatile organic substances. The shrinkage of the sample during carbonization was also significantly reduced by the addition of sulfuric acid.
Keywords:cellulose  carbonization  sulfuric acid  thermogravimetry
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