Structure of single-wall carbon nanotubes purified and cut using polymer

2019-07-04 14:16:11

carbon wall SWNTs nanotubes Japan

责任者: Zhang, M.;Yudasaka, M.;Koshio, A.;Jabs, C.;Ichihashi, T.;Iijima, S. 单位: International Cooperative Research Project, Japan Science Technology Corporation, C/o NEC Corporation, Tsukuba 305-8501, Japan 来源出处: Applied Physics A: Materials Science and Processing,2002,74(1):7-10 摘要: 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. © Springer-Verlag 2001. 关键词: Carbon nanotubes;Purification;Polymers;Oxygen;Solutions;Polymethyl methacrylates;Single-wall carbon nanotubes (SWNT);Amorphous carbon;Monochlorobenzene;Ultrasonication