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- Title
Growth of Single‐Walled Carbon Nanotubes with Controlled Structure: Floating Carbide Solid Catalysts.
- Authors
Qian, Liu; Xie, Ying; Yu, Yue; Wang, Shanshan; Zhang, Shuchen; Zhang, Jin
- Abstract
Single‐walled carbon nanotube (SWNT) horizontal arrays with specific chirality can be enriched using solid carbide catalysts on substrates. However, scale‐up production by continuous loading of the solid catalysts onto the substrates is challenging. Described here is the preparation of a floating carbide solid catalyst (FSC) for the controlled growth of SWNTs. The FSC, titanium carbide (TiC) nanoparticle, was directly obtained in the carrier gas phase by decomposition and carbonization of the titanocene dichloride precursor at high temperature. By using the TiC nanoparticle FSC, both SWNT horizontal arrays and randomly distributed networks can be obtained. The chirality of the as‐grown SWNTs were thermodynamically controlled to have fourfold symmetry. Further optimization of growth condition resulted in an abundance of (16,8) tubes with about a 74 % content. This FSC chemical vapor deposition (FSCCVD) method has potential for realizing mass growth of SWNTs with controlled structures.
- Subjects
SINGLE walled carbon nanotubes; CARBON nanotubes; CHEMICAL vapor deposition; TITANIUM carbide; CARRIER gas; CATALYSTS
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 27, p10976
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202002651