| タイトル | Analysis of Effluent Gases During the CCVD Growth of Multi Wall Carbon Nanotubes from Acetylene |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120003760 |
| 著者（英） | Miller, D. W.; Schmitt, T. C.; Biris, A. S.; Lupu, D.; Biris, A. R.; Rahman, Z. U.; Trigwell, S. |
| 著者所属（英） | NASA Kennedy Space Center |
| 発行日 | 2005-01-01 |
| 言語 | eng |
| 内容記述 | Catalytic chemical vapor deposition was used to grow multi-walled carbon nanotubes on a Fe:Co:CaCO3 catalyst from acetylene. The influent and effluent gases were analyzed by gas chromatography and mass spectrometry at different time intervals during the nanotubes growth process in order to better understand and optimize the overall reaction. A large number of byproducts were identified and it was found that the number and the level for some of the carbon byproducts significantly increased over time. The CaCO3 catalytic support thermally decomposed into CaO and CO2 resulting in a mixture of two catalysts for growing the nanotubes, which were found to have outer diameters belonging to two main groups 8 to 35 nm and 40 to 60 nm, respectively. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | KSC-2005-172 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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