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Double Wall Carbon Nanotubes with an Inner Diameter of 0.4 nm

✍ Scribed by L. Ci; Z. Zhou; D. Tang; X. Yan; Y. Liang; D. Liu; H. Yuan; W. Zhou; G. Wang; S. Xie


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
189 KB
Volume
9
Category
Article
ISSN
0948-1907

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✦ Synopsis


Selective preparation of double wall carbon nanotubes (DWCNTs) is achieved by a floating iron catalyst CVD method with sufur promotion. SEM shows that the product consists of entangled nanotubes. HRTEM and Raman scattering have revealed that the smallest inner diameter of as‐grown carbon nanotubes is 0.4 nm (see Figure). The smallest diameter is found to be produced at the low carbon partial pressure with low sulfur content.


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