Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth
Abstract The asymmetrical growth of a single‐wall carbon nanotube (SWCNT) by introducing a change of a local atomic structure, is usually inevitable and supposed to have a profound effect on the chirality control and property tailor. However, the breaking of the symmetry during SWCNT growth remains...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-12-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202304905 |
| _version_ | 1797373759116541952 |
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| author | Lili Zhang Ziwei Xu Tian‐liang Feng Maoshuai He Thomas Willum Hansen Jakob Birkedal Wagner Chang Liu Hui‐Ming Cheng |
| author_facet | Lili Zhang Ziwei Xu Tian‐liang Feng Maoshuai He Thomas Willum Hansen Jakob Birkedal Wagner Chang Liu Hui‐Ming Cheng |
| author_sort | Lili Zhang |
| collection | DOAJ |
| description | Abstract The asymmetrical growth of a single‐wall carbon nanotube (SWCNT) by introducing a change of a local atomic structure, is usually inevitable and supposed to have a profound effect on the chirality control and property tailor. However, the breaking of the symmetry during SWCNT growth remains unexplored and its origins at the atomic‐scale are elusive. Here, environmental transmission electron microscopy is used to capture the process of breaking the symmetry of a growing SWCNT from a sub‐2‐nm platinum catalyst nanoparticle in real‐time, demonstrating that topological defects formed on the side of a SWCNT can serve as a buffer for stress release and inherently break its axis‐symmetrical growth. Atomic‐level details reveal the importance of the tube‐catalyst interface and how the atom rearrangement of the solid‐state platinum catalyst around the interface influences the final tubular structure. The active sites responsible for trapping carbon dimers and providing enough driving force for carbon incorporation and asymmetric growth are shown to be low‐coordination step edges, as confirmed by theoretical simulations. |
| first_indexed | 2024-03-08T18:55:05Z |
| format | Article |
| id | doaj.art-96936bd371f54cd29fd7ee12c47529d2 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-08T18:55:05Z |
| publishDate | 2023-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-96936bd371f54cd29fd7ee12c47529d22023-12-28T14:55:39ZengWileyAdvanced Science2198-38442023-12-011036n/an/a10.1002/advs.202304905Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its GrowthLili Zhang0Ziwei Xu1Tian‐liang Feng2Maoshuai He3Thomas Willum Hansen4Jakob Birkedal Wagner5Chang Liu6Hui‐Ming Cheng7Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaSchool of Materials Science and Engineering Jiangsu University Zhenjiang 212013 ChinaSchool of Materials Science and Engineering Jiangsu University Zhenjiang 212013 ChinaCollege of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 ChinaDTU Nanolab Technical University of Denmark Fysikvej Kongens Lyngby 2800 DenmarkDTU Nanolab Technical University of Denmark Fysikvej Kongens Lyngby 2800 DenmarkShenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaShenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 ChinaAbstract The asymmetrical growth of a single‐wall carbon nanotube (SWCNT) by introducing a change of a local atomic structure, is usually inevitable and supposed to have a profound effect on the chirality control and property tailor. However, the breaking of the symmetry during SWCNT growth remains unexplored and its origins at the atomic‐scale are elusive. Here, environmental transmission electron microscopy is used to capture the process of breaking the symmetry of a growing SWCNT from a sub‐2‐nm platinum catalyst nanoparticle in real‐time, demonstrating that topological defects formed on the side of a SWCNT can serve as a buffer for stress release and inherently break its axis‐symmetrical growth. Atomic‐level details reveal the importance of the tube‐catalyst interface and how the atom rearrangement of the solid‐state platinum catalyst around the interface influences the final tubular structure. The active sites responsible for trapping carbon dimers and providing enough driving force for carbon incorporation and asymmetric growth are shown to be low‐coordination step edges, as confirmed by theoretical simulations.https://doi.org/10.1002/advs.202304905carbon nanotubesenvironmental TEMgrowth mechanisminterface interactionsymmetry breaking |
| spellingShingle | Lili Zhang Ziwei Xu Tian‐liang Feng Maoshuai He Thomas Willum Hansen Jakob Birkedal Wagner Chang Liu Hui‐Ming Cheng Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth Advanced Science carbon nanotubes environmental TEM growth mechanism interface interaction symmetry breaking |
| title | Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth |
| title_full | Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth |
| title_fullStr | Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth |
| title_full_unstemmed | Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth |
| title_short | Breaking the Axis‐Symmetry of a Single‐Wall Carbon Nanotube During Its Growth |
| title_sort | breaking the axis symmetry of a single wall carbon nanotube during its growth |
| topic | carbon nanotubes environmental TEM growth mechanism interface interaction symmetry breaking |
| url | https://doi.org/10.1002/advs.202304905 |
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