✦ LIBER ✦

Formation of vapor-grown carbon fibers in CO-CO2-H2 mixtures, II. Influence of catalyst

✍ Scribed by Munehiro Ishioka; Toshihiko Okada; Kenji Matsubara; Morinobu Endo

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 524 KB
Volume: 30
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(92)90008-k

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✦ Synopsis

In order to enhance the growth rate of vapor-grown carbon fibers in a mixture of 77% CO, 19% CO2 and 4% Hz, the decomposition behavior of ferrocene and the effect of additives, metal acetylacetonates, on the growth rate of fibers were investigated. The decomposition behavior of ferrocene in the CO--CO*--HI mixture was similar to that inpure hydrogen. The addition of acetylacetonates of Fe, Co, and Mn to ferrocene was found to reduce the size of particles and consequently to accelerate the growth rate along with the yield. In particular, the growth rate and the yield of fibers as high as 40 pm/s and 70 wt%, respectively, were obtained in the case of using 80 wt% ferrocene and 20 wt% cobalt acetylacetonate.

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