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| Effect of Nitrogen Element in the Graphitization of Carbon Fibre |
| GAO Aijun; JIN Yuwei; XU Lianghua |
| Key Laboratory of Carbon Fibre and Functional Polymer; Ministry of Education; School of Materials science and technology; Beijing University of Chemical Technology; Beijing 100029 |
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Cite this article:
GAO Aijun JIN Yuwei XU Lianghua. Effect of Nitrogen Element in the Graphitization of Carbon Fibre. Chin J Mater Res, 2010, 24(2): 149-153.
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Abstract Graphite fibers of Different nitrogen content was prepared. The element composition and crystallite structure of resulted fibers were investigated by means of element analysis, X-ray diffraction and Raman spectroscopy. The correlation between crystallite structure and nitrogen content of these fibers was investigated. The results show that, with decrease of nitrogen content, the graphite crystallite grow, crystallite orientation degree and graphitization degree increase. Crystallite size, crystallite orientation degree and graphitization degree increase slowly because of the distortion of the graphite layer with nitrogen atom when the fibers contain more than 0.08% nitrogen element. As nitrogen content is below 0.08%, the crystallite size, crystallite orientation degree and graphitization degree increase rapidly. Denitrogenation is control step of the growth of graphite crystallite containing nitrogen atom, but can't lead to the growth of graphite crystallite directly.
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Received: 24 December 2009
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| Fund: 国家重点基础研究发展计划2006CB605302资助项目。 |
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