Abstract
A novel carbon fiber pretreatment was proposed. Polyacrylonitrile (PAN)-based carbon fibers were first anodized in H3PO4 electrolyte to achieve an active surface, and then coated with Mo-B catalysts by immersed the carbon fibers in a uniformly dispersed Mo-B sol. The as-treated carbon fibers were then graphitized at 2 400 °C for 2 h. The structural changes were characterized by X-ray diffractometry (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and high-resolution transmission electronic microscopy (HRTEM). The results show that much better graphitization can be achieved in the presence of Mo-B, with an interlayer spacing (d 002) of 0.335 8 nm and a crystalline size (L c) of 28 nm.
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Foundation item: Project(2006CB600903) supported by the National Basic Research Program of China
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Xu, Sh., Zhang, Fy., Liu, Sh. et al. Catalytic graphitization of Mo-B-doped polyacrylonitrile (PAN)-based carbon fibers. J. Cent. South Univ. Technol. 17, 703–707 (2010). https://doi.org/10.1007/s11771-010-0543-z
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DOI: https://doi.org/10.1007/s11771-010-0543-z