Effect of aluminum compound addition on graphitization of wood charcoal by direct electric pulse heating method |
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| Authors: | Email author" target="_blank">Koei?NishimiyaEmail author Toshimitsu?Hata Hikari?Kikuchi Yuji?Imamura |
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| Institution: | (1) Research Institute for Sustainable Humanosphere, Kyoto University, Uji, 611-0011, Japan;(2) S.S. Alloy Co., Higashihiroshima, 739-0046, Japan;(3) Present address: Hokkaido Forest Products Research Institute, 1-10 Nishikagura, Asahikawa, 071-0198, Japan |
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| Abstract: | The catalytic effect of aluminum on graphitization of wood charcoal was examined. Wood charcoal impregnated with aluminum triisopropoxide to various levels was subjected to direct electric pulse heating. Electric conductivity and heat conductivity of the products showed strong, systematic dependence on the amount of aluminum added. X-ray diffractometry indicated that these effects result from a larger degree of graphitization. Because the amount of aluminum in the final product was negligible, aluminum, before being lost by vaporization, apparently catalyzed graphitization at a lower temperature than is used for conventional treatments.Part of this report was presented at the 17th Annual Meeting of the Association of Wood Processing and Technology, November 1999; the 11th MRS-J Annual Meeting, Kawasaki, December 1999; and the 50th Annual Meeting of the Japan Wood Research Association, April 2000 |
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| Keywords: | Direct electric pulse heating method Charcoal Graphitization Aluminum |
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