Growth of carbon octopus-like structures from carbon black in a fluidized bed

Carbon octopi like structures have been grown by catalytic conversion of carbon black in a fluidized bed with the help of ferrocene and acetylene. A growth mechanism has been proposed based on small-angle neutron scattering, scanning electron microscope and transmission electron microscope observati...

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Bibliographic Details
Published in:Materials express 2013-03, Vol.3 (1), p.51-60
Main Authors: Dasgupta, Kinshuk, Joshi, Jyeshtharaj B., Paul, Bhaskar, Sen, Debasis, Banerjee, Srikumar
Format: Article
Language:English
Subjects:
Acetylene
Carbon
Carbon black
Carbon Octopus
Catalysis
Chemical Vapor Deposition
Conversion
Electron Microscopy
Fluidized beds
Iron
Neutron scattering
Scanning electron microscopy
Small Angle Neutron Scattering
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Summary:Carbon octopi like structures have been grown by catalytic conversion of carbon black in a fluidized bed with the help of ferrocene and acetylene. A growth mechanism has been proposed based on small-angle neutron scattering, scanning electron microscope and transmission electron microscope observations. Addition of carbon black primary particles into multiple nuclei of carbon cap on iron particles led the growth of these structures. It was concluded that the pentagon and heptagon defects in the carbon black have important roles in converting the spherical structure into a cylindrical structure.
ISSN:2158-5849
2158-5857
DOI:10.1166/mex.2013.1093