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Structure of single-wall carbon nanotubes purified and cut using polymer |
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| Authors: | M Zhang M Yudasaka A Koshio C Jabs T Ichihashi S Iijima |
| Institution: | (1) International Cooperative Research Project of Japan Science Technology Corporation, c/o NEC Corporation, 34 Miyukigaoka, Tsukuba 305-8501, Japan, JP;(2) NEC Fundamental Research Laboratories, 34 Miyukigaoka, Tsukuba 305-8501, Japan, JP;(3) Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan, JP |
| Abstract: | Following on from our previous report that a monochlorobenzene solution of polymethylmethacrylate is useful for purifying and cutting single-wall carbon nanotubes (SWNTs) and thinning SWNT bundles, we show in this report that polymer and residual amorphous carbon can be removed by burning in oxygen gas. The SWNTs thus obtained had many holes (giving them a worm-eaten look) and were thermally unstable. Such severe damage caused by oxidation is unusual for SWNTs; we think that they were chemically damaged during ultrasonication in the monochlorobenzene solution of polymethylmethacrylate. Received: 28 March 2001 / Accepted: 2 August 2001 / Published online: 17 October 2001 |
| Keywords: | PACS: 61 46 +W |
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