journal article·2023

Common salts directed the growth of metal-free horizontal SWNT arrays

Yi Yu, Xiaoyue Sun, Ran Du, Hongjie Zhang, Dayan Liu, Ying Wang, Xinyu Zhang, Wenyu Zhang, Shuchen Zhang, Jinjie Qian, Yue Hu, Shaoming Huang

Nanoscale· Volume 15· Issue 2
Publisher page

Abstract

Acquiring metal-free horizontal single-walled carbon nanotube (SWNT) arrays is of paramount importance for the development of stable nanodevices. However, the majority of SWNTs are prepared with transition metal-based catalysts, which will inevitably leave metallic residuals and deteriorate the device performance. Here, green and low-cost NaCl is developed as a metal-free catalyst. By employing a strategy of rapid nucleation at a higher temperature followed by steady growth at a lower temperature, the production of a well-defined NaCl catalyst capable of growing metal-free horizontal SWNT arrays with an average density of ∼100 tubes per 100 μm is realized. Besides, we prove that the as-grown metal-free SWNT arrays have a unique advantage in preparing stable devices for eliminating the potential risk of local mass catalyst residuals. Hence, the current study can offer a feasible solution to promote practical applications of SWNT-based next-generation nanodevices.
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Research context

OpenAlex topics: Anodic Oxide Films and Nanostructures · Nanowire Synthesis and Applications · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

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

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

Standardization Research Institute of China North Industries Group Corporation Limited, Beijing 100871, P. R. China

Beijing Science and Engineering Center for Nanocarbons, School of Materials Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, 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

Funding

Chinese Academy of Sciences · Natural Science Foundation of Zhejiang Province · National Natural Science Foundation of China

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