The course of catalytic graphitization of hard carbon was studied kinetically. Carbons produced at 800ยฐC from divinyl benzene polymer, Amberlite IRC-50 and furfural-furan resins with added cupric oxide were heat treated at temperatures between 1450 and 1525ยฐC for 30-180 min. Graphitization proceeded
A study of the catalytic graphitization of carbon
โ Scribed by M.P. Whittaker; H.C. Fritz
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 112 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
Structural changes which accompany the catalytic graphitization of carbon have been investigated. Utilizing X-ray diffraction and high temperature microscopy techniques, the effectiveness of various additives in promoting the formation of graphite from a variety of carbon materials of varying degrees of graphitizability is elucidated.
- The development of mesophase microstructures during pyrolysis of selected coker feedstocks R. J. Price and J. L. White (Gulf General Atomic Company, Sand Diego, California). Polarized light microscopy was used to observe the formation of mesophase microstructures during the pyrolysis of selected coker feedstocks, including a vacuum-reduced crude, an air-blown asphalt, a thermal tar, and gilsonite. These materials developed a range of microstructural components characterized by extinction contour patterns differing widely in anisotropy and contour spacing.
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Samples of P33 carbon black, heat treated in the range 1600"-26OO"C, were studied by E.P.R. The lineintensity, localized and free spins contributions, and g-factor, are examined as a function of residence time at H.T.T. (a few minutes to several hours). The correlation between the g-factor and diama