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Full Record for Micrograph 562

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Micrograph no
562
Brief description
Multi-walled carbon nanotube
Keywords
carbon, carbon nanotube, nanotube Link to MATTER Glossary entry for nanotube, polymer Link to MATTER Glossary entry for polymer
Categories
Polymer
System
Carbon nanotube
Composition
Not specified
Standard codes
Reaction
Processing
This multi-walled nanotube was formed by catalytic cracking of a hydrocarbon gas
Applications
Carbon nanotubes may be considered a high performance mechanical polymer or an electrically conducting polymer but their greatest potential is in gas storage or as a filler in polymeric materials
Sample preparation
A dry, untreated aggregate of tubes has been used
Technique
Transmission electron microscopy (TEM)
Length bar
3.2 nm
Further information
A variety of techniques may be used for the synthesis of carbon nanotubes. These include electrolysis of molten salts with a graphite cathode, chemical vapour deposition, and striking graphite with an electric arc. This multi-walled tube was produced by the catalytic cracking of a hydrocarbon gas. The graphitic planes are clearly visible and a thin layer of amorphous carbon can be seen on the outer surface of the tube.
Contributor
Prof A H Windle
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Date
03/10/02
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales