Structural changes in carbon aerogels with high temperature treatment |
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Authors: | Yohko Hanzawa Hiroaki Hatori Noriko YoshizawaYoshio Yamada |
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Affiliation: | a Japan Science and Technology Corporation, Kawaguchi Center Building 12 F, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan b National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan |
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Abstract: | The structural change of carbon aerogels at high temperatures up to 2800°C has been investigated. Change in microtexture of fine particles, which constitute carbon aerogels derived from phenolic resin, was of a typical non-graphitized carbon. The microporosity decreased with an increase of heat-treatment temperature, and disappeared at 2000°C. The mesoporosity still remained even after heat-treatment up to 2800°C, though 50% of mesopore volume was lost because of the fusion of the particles with the change of carbon microtexture. |
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Keywords: | A Carbon aerogel B Heat treatment C Adsorption D Porosity Textures |
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