Sequential catalytic growth of carbon nanotubes
Nanofilaments made of repeated units of multiwall carbon nanotubes (MWCNT) with a metal particle encapsulated at one end were synthesized by thermal chemical vapor deposition (CVD) of methane on Ni–Fe catalysts. The nanofilaments were characterized using scanning electron microscopy (SEM), low- and...
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| Veröffentlicht in: | Chemical physics letters 2002-09, Vol.364 (1), p.27-33 |
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| container_end_page | 33 |
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| container_issue | 1 |
| container_start_page | 27 |
| container_title | Chemical physics letters |
| container_volume | 364 |
| creator | Jourdain, Vincent Kanzow, Henning Castignolles, Marie Loiseau, Annick Bernier, Patrick |
| description | Nanofilaments made of repeated units of multiwall carbon nanotubes (MWCNT) with a metal particle encapsulated at one end were synthesized by thermal chemical vapor deposition (CVD) of methane on Ni–Fe catalysts. The nanofilaments were characterized using scanning electron microscopy (SEM), low- and high-resolution transmission electron microscopy (TEM). A mechanism based on a sequential growth is here proposed to explain the structure. Using the structural information from the TEM micrographs, we demonstrate the existence of two different growth regimes depending on the size of the catalyst particle and estimate the critical carbon concentration in the catalyst particle to initiate the growth. |
| doi_str_mv | 10.1016/S0009-2614(02)01309-X |
| format | Article |
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The nanofilaments were characterized using scanning electron microscopy (SEM), low- and high-resolution transmission electron microscopy (TEM). A mechanism based on a sequential growth is here proposed to explain the structure. 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| ispartof | Chemical physics letters, 2002-09, Vol.364 (1), p.27-33 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Condensed Matter Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials Science Nanoscale materials and structures: fabrication and characterization Physics |
| title | Sequential catalytic growth of carbon nanotubes |
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