Synthesis of Long Aligned Carbon Nanotubes
Author Information
Author(s): Mahanandia Pitamber, Schneider Jörg J, Engel Martin, Stühn Bernd, Subramanyam Somanahalli V, Nanda Karuna
Primary Institution: Leibniz Institut für Polymerforschung e.V.
Hypothesis
Can we synthesize long, aligned multiwalled carbon nanotubes using a one-step chemical vapor deposition technique?
Conclusion
The study successfully demonstrates the growth of millimeter-long carbon nanotubes using a direct CVD method without the need for additional carrier gases or oxidants.
Supporting Evidence
- The length of the grown CNTs increased with temperature, reaching up to millimeter lengths at 1100 °C.
- The diameter of the CNTs remained almost constant at around 80 nm regardless of the synthesis temperature.
- SAXS studies confirmed the parallel arrangement of the CNTs.
Takeaway
The researchers figured out how to make really long carbon tubes that stand up straight, which could be useful for making better electronic devices.
Methodology
The synthesis was performed using a one-step chemical vapor deposition technique with benzene and ferrocene as precursors at temperatures ranging from 650 to 1100 °C.
Limitations
The exact role of growth promoters and oxidizers in the synthesis process remains unclear.
Digital Object Identifier (DOI)
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