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Influence of sulfuric acid impregnation on the carbonization of cellulose

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Abstract

That cellulose, as source of carbon materials, has a low char yield in pyrolysis can present serious difficulties. In this study, we focused on the effect of using sulfuric acid as a dehydration agent and examined the pyrolytic behavior of cellulose impregnated with sulfuric acid by using thermogravimetry and scanning electron microscopy. The mass yield of carbon after an 800 °C treatment in nitrogen was increased by 2–5 times with the addition of small amounts of sulfuric acid. Sample shrinkage during carbonization was also significantly reduced. These effects are interpreted as being the result of facilitated extraction of water from cellulose accompanied by development of extended carbon networks.

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Authors and Affiliations

  1. Department of Biological and Environmental Science, Dongguk University-Seoul, Seoul, 100-715, Korea

    Kyu-Young Kang & Dae-Young Kim

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  1. Kyu-Young Kang
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  2. Dae-Young Kim
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Correspondence to Kyu-Young Kang.

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Kang, KY., Kim, DY. Influence of sulfuric acid impregnation on the carbonization of cellulose. Journal of the Korean Physical Society 60, 1818–1822 (2012). https://doi.org/10.3938/jkps.60.1818

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  • DOI: https://doi.org/10.3938/jkps.60.1818

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