Amorphous carbon nanorods as a precursor for carbon nanotubes
The transformation of amorphous carbon nanorods into multi-wall nanotubes is studied using molecular dynamics. The effect of the density, width and shape of the initial nanorod is investigated. High-temperature annealing simulations show that the transformation is a robust process which occurs at al...
| Main Authors: | , |
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| Format: | Journal Article |
| Published: |
Pergamon
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/34437 |
| _version_ | 1848754222249541632 |
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| author | Suarez-Martinez, Irene Marks, Nigel |
| author_facet | Suarez-Martinez, Irene Marks, Nigel |
| author_sort | Suarez-Martinez, Irene |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The transformation of amorphous carbon nanorods into multi-wall nanotubes is studied using molecular dynamics. The effect of the density, width and shape of the initial nanorod is investigated. High-temperature annealing simulations show that the transformation is a robust process which occurs at all densities, regardless of the nanorod shape. The least defective nanotubes arise from tetrahedral amorphous carbon precursors with an initial density of 3 g/cc. By excising selected regions of the nanorod, we show that the perimeter in cross-section determines the tube diameter, with the number of walls being primarily controlled by the density of the rod. This transformation suggests an alternative approach for generating carbon nanotube networks in the laboratory using ion-beam deposition in combination with lithography. |
| first_indexed | 2025-11-14T08:36:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-34437 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:36:59Z |
| publishDate | 2012 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-344372017-09-13T15:55:52Z Amorphous carbon nanorods as a precursor for carbon nanotubes Suarez-Martinez, Irene Marks, Nigel The transformation of amorphous carbon nanorods into multi-wall nanotubes is studied using molecular dynamics. The effect of the density, width and shape of the initial nanorod is investigated. High-temperature annealing simulations show that the transformation is a robust process which occurs at all densities, regardless of the nanorod shape. The least defective nanotubes arise from tetrahedral amorphous carbon precursors with an initial density of 3 g/cc. By excising selected regions of the nanorod, we show that the perimeter in cross-section determines the tube diameter, with the number of walls being primarily controlled by the density of the rod. This transformation suggests an alternative approach for generating carbon nanotube networks in the laboratory using ion-beam deposition in combination with lithography. 2012 Journal Article http://hdl.handle.net/20.500.11937/34437 10.1016/j.carbon.2012.07.030 Pergamon restricted |
| spellingShingle | Suarez-Martinez, Irene Marks, Nigel Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title | Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title_full | Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title_fullStr | Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title_full_unstemmed | Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title_short | Amorphous carbon nanorods as a precursor for carbon nanotubes |
| title_sort | amorphous carbon nanorods as a precursor for carbon nanotubes |
| url | http://hdl.handle.net/20.500.11937/34437 |