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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Intercalation of wood charcoal with sulfuric acid

Journal of Wood Science volume 55, pages 154–158 (2009)Cite this article

Abstract

Intercalation of wood charcoal with sulfuric acid (H2SO4) was investigated. Carbonized sugi (Japanese cedar) samples were prepared by heating at various temperatures in the range 1700°–2700°C. Electrochemical oxidization was carried out in H2SO4 and the feasibility of intercalation was determined. In potentiometric analysis, plateaus appeared for samples carbonized at temperatures above 2300°C. In their X-ray diffraction profiles, the peak at around 26° was shifted to a smaller angle of about 22.4°. These results can be considered as signs of intercalation with acid molecules. Fourier transform infrared analysis of charcoal heated at 2700°C, following washing with water and drying of the sample, showed a band at 1220 cm−1 that was assigned to a sulfonate group. This band was not observed for samples heated at 1900°C. These observations suggest the occurrence of intercalation in the former charcoal, but not in the latter. It is concluded that wood charcoal can undergo intercalation when it has ordered stacking of hexagonal carbon layers.

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Authors and Affiliations

  1. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan

    Kodai Kuwata, Yukie Saito, Satoshi Shida & Masamitsu Ohta

Authors
  1. Kodai Kuwata
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  2. Yukie Saito
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  3. Satoshi Shida
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  4. Masamitsu Ohta
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Corresponding author

Correspondence to Yukie Saito.

Additional information

Part of this article was presented at the 55th, 56th, and 57th Annual Meetings of the Japan Wood Research Society, Akita, Hiroshima, and Tsukuba, August 2006, August 2007, and March 2008, respectively, and at the International Conference on Carbon “CARBON 2008,” Nagano, July 2008

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Kuwata, K., Saito, Y., Shida, S. et al. Intercalation of wood charcoal with sulfuric acid. J Wood Sci 55, 154–158 (2009). https://doi.org/10.1007/s10086-008-0999-8

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  • DOI: https://doi.org/10.1007/s10086-008-0999-8

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