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Zhang X, Wang X, Zhu L, Yu Y, Yang H, Zhang S, Hu Y, Huang S. Evolution of catalyst design for controlled synthesis of chiral single-walled carbon nanotubes. Chem Commun (Camb) 2024; 60:6222-6238. [PMID: 38829610 DOI: 10.1039/d4cc01227e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Single-walled carbon nanotubes (SWCNTs) possess superb properties originating from their unique chiral structures. However, accurately controlling the structure of SWCNTs remains challenging due to the structural similarities of their chiral structures, which hinders their widespread application in various fields, particularly in electronics. In recent years, much effort has been devoted to preparing single chiral SWCNTs by adopting three constructive strategies, including growth condition control for structurally unstable liquid catalysts, employing stable solid catalyst design, and pre-synthesis of carbon seeds with a well-defined shape. This review comprehensively discusses the state-of-the-art developments in these approaches as well as their advantages and disadvantages. Moreover, insights into the key challenges and future directions are provided for acquiring chirally pure SWCNTs.
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Affiliation(s)
- Xinyu Zhang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, P. R. China.
| | - Xiuxia Wang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, P. R. China.
| | - Linxi Zhu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, P. R. China.
| | - Yi Yu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, P. R. China.
| | - Hongfeng Yang
- Beijing Auxin Chemical Technology Limited, Beijing 100040, P. R. China
| | - Shuchen Zhang
- Department of Materials Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230022, China.
| | - Yue Hu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325000, P. R. China.
| | - Shaoming Huang
- School of Materials and Energy, Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Guangdong University of Technology, Guangzhou 510006, P. R. China.
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Chen X, Duan H, Cao B. Evolution Mechanism of Solid-Phase Catalysts During Catalytic Growth of Single-Walled Carbon Nanotubes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310543. [PMID: 38185805 DOI: 10.1002/smll.202310543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/25/2023] [Indexed: 01/09/2024]
Abstract
Using solid nanoparticles (NPs) as catalysts is the most effective method to achieve catalytic growth of single-walled carbon nanotubes (SWCNTs) with ultrapure chirality. Until now, SWCNTs with a suitable chirality purity have not been prepared in experiments. That is, the evolution of solid NPs during the catalytic growth of SWCNTs is in contradiction with the original concept of a changeless structure. Hence, in this work, the evolution mechanism of solid cobalt NPs during the nucleation process of SWCNTs is analyzed through molecular dynamics. Similar to the experimental observations, the results show that a drastic structural fluctuation of the NPs occurs during the nucleation of SWCNTs. This structural fluctuation is caused by the fact that the elastic strain energy and surface energy of the NPs can be tuned when a carbon gradient exists between the subsurface and interior of the NP. Furthermore, such a carbon gradient can be reduced by changing the carbon feeding rate. This work not only reveals the evolution mechanism of solid catalysts during the nucleation of SWCNTs but also provides prospects for realizing solid catalysts with a changeless structure by tuning the experimental parameters.
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Affiliation(s)
- Xuan Chen
- School of Physical Science and Technology, Xinjiang University, Urumqi, 830046, P. R. China
| | - Haiming Duan
- School of Physical Science and Technology, Xinjiang University, Urumqi, 830046, P. R. China
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi, 830046, P. R. China
| | - Biaobing Cao
- School of Physical Science and Technology, Xinjiang University, Urumqi, 830046, P. R. China
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