๐”– Bobbio Scriptorium
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Formation of carbon fibers from acetylene

โœ Scribed by P.A. Tesner; E.Y. Robinovich; I.S. Rafalkes; E.F. Arefieva

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
727 KB
Volume
8
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

The formation rate of disperse carbon fibers during the thermal decomposition of acetylene in mixtures with nitrogen and hydrogen at temperatures from 450 to 700ยฐC on metal wire surface was investigated.

Direct observations of the initial process stages were carried out in an electron microscope.

A comparison of the obtained results brings to a conclusion that the process takes place in two stages, the first one being a catalytic activation of the surface with a creation of active centres on it, and the second a growth of carbon fibers on the obtained active areas.

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The formation of filamentous carbon from
The formation of filamentous carbon from decomposition of acetylene over vanadium and molybdenum
โœ R.T.K. Baker; J.J. Chludzinski Jr.; N.S. Dudash; A.J. Simoens ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 539 KB

Controlled atmosphere electron microscopy has been used to investigate the deposition of carbon on vanadium and molybdenum surfaces during the thermal decomposition of acetylene. Both metals were found to be active catalysts for carbon filament formation, whereas the carbides, VC and MO& were found