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Direct Synthesis of Long Single-Walled Carbon Nanotube Strands

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Science  03 May 2002:
Vol. 296, Issue 5569, pp. 884-886
DOI: 10.1126/science.1066996

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Abstract

In the processes that are used to produce single-walled nanotubes (electric arc, laser ablation, and chemical vapor deposition), the typical lengths of tangled nanotube bundles reach several tens of micrometers. We report that long nanotube strands, up to several centimeters in length, consisting of aligned single-walled nanotubes can be synthesized by the catalytic pyrolysis of n-hexane with an enhanced vertical floating technique. The long strands of nanotubes assemble continuously from arrays of nanotubes, which are intrinsically long.

  • * To whom correspondence should be addressed. E-mail: wdh-dme{at}tsinghua.edu.cn, ajayan{at}rpi.edu

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