Method of producing bromine-treated graphite fibers

Details Method of producing bromine-treated graphite fibers Method of producing bromine-treated graphite fibers

1990-09-12

1992-09-29

Kunemund, Robert

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423449, 423453, 423460, 252502, C01B 3104

Patent

active

051512610

ABSTRACT:
The method of producing bromine-processed graphite fibers comprises preparing gas phase grown carbon fibers by bringing a substrate carrying thereon ultrafine particles of metal catalyst into contact with hydrocarbon compound under a high temperature, graphitizing the thus obtained fibers to obtain graphite fibers having such a crystal structure as carbon hexagonal network face is substantially in parallel with the axis of fibers and is oriented coaxially, and then bringing the thus obtained graphite fibers and bromine at a temperature lower than 60.degree. C. and for a time at least for 10 min.. In this case, the specific value for the length of the repeat distance along the c axis direction in the crystals is within a range from 10 to 40 .ANG..

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