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Single-walled 4 Å carbon nanotube arrays

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Abstract

Here we describe the smallest carbon nanotubes possible1, prepared by the pyrolysis of tripropylamine molecules in the channels of porous zeolite AlPO4-5 (AFI) single crystals2. These uniformly sized carbon nanotubes have a diameter of 0.4 nm and are the best example of one-dimensional quantum wires.

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Figure 1: An as-grown zeolite AlPO4-5 (AFI) single crystal.
Figure 2: High-resolution transmission electron microscope image showing single-walled carbon nanotubes (indicated by T and large arrowheads) coexisting with graphite in raft-like stripes (G).

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Author notes

  1. J. S. Chen

    Present address: Department of Chemistry, Jilin University, PR China

Authors and Affiliations

  1. Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, PR China

    N. Wang, Z. K. Tang & G. D. Li

Authors
  1. N. Wang
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  2. Z. K. Tang
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  3. G. D. Li
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  4. J. S. Chen
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Correspondence to Z. K. Tang.

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Wang, N., Tang, Z., Li, G. et al. Single-walled 4 Å carbon nanotube arrays. Nature 408, 50–51 (2000). https://doi.org/10.1038/35040702

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