Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Micrograph Library Full Record for Micrograph 565

Full Record for Micrograph 565

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Micrograph no
565
Brief description
Vapour-grown carbon nanotubes
Keywords
carbon, carbon nanotube, chemical vapour deposition (CVD), ferrocene, 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
These fibres grow in the heated zone during chemical vapour deposition, using a fine solution of ferrocene dissolved in toluene
Applications
Carbon nanotubes may be considered a high performance mechanical polymer or an electrically conducting polymer but have potential uses in nanodevices, sensors, hydrogen storage and fuel cells
Sample preparation
The specimen has been sputter-coated with gold to avoid charging in the SEM
Technique
Scanning electron microscopy (SEM)
Length bar
5 μm
Further information
Chemical vapour deposition (CVD) allows the synthesis of high purity nanotubes of controlled length and diameter. The nanotubes in this specimen were formed in the heated zone of the apparatus whilst using ferrocene dissolved in toluene. The fibres are of high purity and their diameters range from 400 to 500 nm.
Contributor
C Singh
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