Abstract
THE existence of fibrous or whisker carbon has been reported in both synthetic studies of graphite1,2 and in naturally occurring graphite3. The synthetic studies involved decomposition of hydrocarbons over metals1 and decomposition of carbon monoxide over iron2 and, particularly in the second of these studies, the occurrence of metal catalyst within the fibre was observed. Furthermore, it has been established1 that the average orientation of the carbon crystallites is with their (0002) orientation parallel to the axis of the fibre. In this communication we describe the use of high resolution electron microscopy to establish the precise relationship between the orientation of the graphite planes and the catalyst particle within the fibre.
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References
Robertson, S. D., Carbon, 8, 365 (1970).
Ruston, W. R., Warzee, M., Hennaut, J., and Waty, J., Carbon, 7, 47 (1969).
Patel, A. R., and Deshapande, S. B., Carbon, 8, 242 (1970).
Presland, A. E. B., Roscoe, C., and Walker, P. L., jun., Third Conference OK Industrial Carbons and Graphite, London, 1970.
Blau, G., and Presland, A. E. B., Third Conference on Industrial Carbons and Graphite, London, 1970.
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BAIRD, T., FRYER, J. & GRANT, B. Structure of Fibrous Carbon. Nature 233, 329–330 (1971). https://doi.org/10.1038/233329b0
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DOI: https://doi.org/10.1038/233329b0
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