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Breaking the Axis-Symmetry of a Single-Wall Carbon Nanotube During Its Growth

文献类型：期刊论文

作者Zhang, Lili3; Xu, Ziwei5; Feng, Tian-liang5; He, Maoshuai1; Hansen, Thomas Willum2; Wagner, Jakob Birkedal2; Liu, Chang3; Cheng, Hui-Ming3,4
刊名ADVANCED SCIENCE
出版日期2023-10-28
页码8
关键词carbon nanotubes environmental TEM growth mechanism interface interaction symmetry breaking
DOI10.1002/advs.202304905
通讯作者Zhang, Lili(zhangll@imr.ac.cn) ; Liu, Chang(cliu@imr.ac.cn)
英文摘要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. The asymmetrical growth of a single-wall carbon nanotube from a sub-2-nm Pt catalyst is observed at atomic scale under reactive conditions. The axis-symmetry of the SWCNT is broken due to the formation of step edges around the tube-catalyst interface, which generates topological defects around the wall and results in variations of tube chirality.image
资助项目L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province,[51802316] ; L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province,[51927803] ; L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province,[52130209] ; L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province,[51972311] ; L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province,[52188101] ; National Natural Science Foundation of China[ZR2019ZD49] ; Key Basic Research Project of Shandong Province, China[2020-MS-009] ; Natural Science Foundation of Liaoning Province, China ; Chinese Academy of Sciences ; Shenyang National Laboratory for Materials Science[604472] ; European Union
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:001088350900001
出版者WILEY
资助机构L.Z. and Z.X. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grants no. 51802316, 51927803, 52130209, 51972311, and 52188101), the Key Basic Research Project of Shandong Province, ; National Natural Science Foundation of China ; Key Basic Research Project of Shandong Province, China ; Natural Science Foundation of Liaoning Province, China ; Chinese Academy of Sciences ; Shenyang National Laboratory for Materials Science ; European Union
源URL[http://ir.imr.ac.cn/handle/321006/177876]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhang, Lili; Liu, Chang
作者单位1.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
2.Tech Univ Denmark, DTU Nanolab, DK-2800 Lyngby, Denmark
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
4.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, 1068 Xueyuan Rd, Shenzhen 518055, Peoples R China
5.Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Lili,Xu, Ziwei,Feng, Tian-liang,et al. Breaking the Axis-Symmetry of a Single-Wall Carbon Nanotube During Its Growth[J]. ADVANCED SCIENCE,2023:8.
APA Zhang, Lili.,Xu, Ziwei.,Feng, Tian-liang.,He, Maoshuai.,Hansen, Thomas Willum.,...&Cheng, Hui-Ming.(2023).Breaking the Axis-Symmetry of a Single-Wall Carbon Nanotube During Its Growth.ADVANCED SCIENCE,8.
MLA Zhang, Lili,et al."Breaking the Axis-Symmetry of a Single-Wall Carbon Nanotube During Its Growth".ADVANCED SCIENCE (2023):8.

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来源：金属研究所

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