Volume 19, Issue 6 2205540
Research Article

En Route to High-Density Chiral Single-walled Carbon Nanotube Arrays using Solid Trojan Catalysts

Dayan Liu

Dayan Liu

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Kai Xiang

Kai Xiang

Beijing Key Laboratory of Research and Application for Aerospace Green Propellants, Beijing Institute of Aerospace Testing Technology, Beijing, 100074 P. R. China

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Shuchen Zhang

Corresponding Author

Shuchen Zhang

Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Ying Wang

Ying Wang

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Hongjie Zhang

Hongjie Zhang

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Taibin Wang

Taibin Wang

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Feng Yang

Feng Yang

Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055 P. R. China

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Ran Du

Ran Du

School of Materials Science & Engineering, Key Laboratory of High Energy Density Materials of the Ministry of Education, Center for Intelligent Health Materials & Devices, Beijing Institute of Technology, Beijing, 100081 P. R. China

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Jinjie Qian

Jinjie Qian

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Zhi Yang

Zhi Yang

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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Yue Hu

Corresponding Author

Yue Hu

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Shaoming Huang

Corresponding Author

Shaoming Huang

Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000 P. R. China

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

E-mail: [email protected]; [email protected]; [email protected]

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First published: 03 December 2022
Citations: 1

Abstract

Solid catalyst is widely recognized as an effective strategy to control the chirality of single-walled carbon nanotubes (SWNTs). However, it is still not compatible with high density in horizontal arrays. “Trojan” catalysts strategy is one of the most effective methods to realize SWNTs with high density and has great potential in chirality control. Here, the co-realization of high density and chirality controlling for SWNTs in a low-temperature growth process is reported based on the developed solid “Trojan” catalyst. High temperature “Trojan” catalyst formation process provides sufficient catalyst number to acquire high density. These liquid “Trojan” catalysts are cooled to solid state by adopting low growth temperature (540 °C), which can be good template to realize the chirality controlling of SWNTs with exposing six-fold symmetry face, (111). Finally, (9, 6) and (13, 1) SWNTs enriched horizontal array with the purity of ≈90% and density of 4 tubes µm−1 is realized. The comparison between the distribution of initial catalysts and the density of as-grown tubes indicates no sacrificing on catalysts number to improve chirality selectivity. This work opens a new avenue on the catalyst's design and chirality controlling in SWNTs growth.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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