General synthesis of inorganic single-walled nanotubes

Bing Ni, Huiling Liu, Peng-peng Wang, Jie He and Xun Wang ()
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Bing Ni: Tsinghua University
Huiling Liu: Tsinghua University
Peng-peng Wang: Tsinghua University
Jie He: Tsinghua University
Xun Wang: Tsinghua University

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract The single-walled nanotube (SWNT) is an interesting nanostructure for fundamental research and potential applications. However, very few inorganic SWNTs are available to date due to the lack of efficient fabrication methods. Here we synthesize four types of SWNT: sulfide; hydroxide; phosphate; and polyoxometalate. Each type of SWNT possesses essentially uniform diameters. Detailed studies illustrate that the formation of SWNTs is initiated by the self-coiling of the corresponding ultrathin nanostructure embryo/building blocks on the base of weak interactions between them, which is not limited to specific compounds or crystal structures. The interactions between building blocks can be modulated by varying the solvents used, thus multi-walled tubes can also be obtained. Our results reveal that the generalized synthesis of inorganic SWNTs can be achieved by the self-coiling of ultrathin building blocks under the proper weak interactions.

Date: 2015
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DOI: 10.1038/ncomms9756

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