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Explain CVD method for preparation of carbon nanotubes.
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written 7.1 years ago by
teamques10
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| Carbon Source | Temperature | Catalyst | Product |
|---|---|---|---|
| Ethylene | 5450C -9000C | Ni/Fe/Co | SWCNT and MWCNT |
| Hydrogen and Methane | 10000catalyst decoposition | Co/Ni/Fe On MgO | High yield of SWCNT |
| Acetylene | 6000C | Cobalt | SWCNT and MWCNT |
| Carbon source with oxide | >8000C | H2 /CH4 atmosphere, any metal catalyst | Composite powders containing CNT |
| CH4 | >5000C Decomposition | Metal Catalyst | CWNT (major) |
MWCNT (minor) | |Any carbon sourceEg. acetylene |>6000C |C/zeolite catalyst | Fullerene+SWCNT+ Few MWCNT|
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