文献类型：期刊文献

英文题名：High-strength carbon nanotube fibre-like ribbon with high ductility and high electrical conductivity

作者：Wang, J. N.[1];Luo, X. G.[2];Wu, T.[2];Chen, Y.[2]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety MOE, Nano X Res Ctr, Shanghai 200237, Peoples R China;[2]Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

年份：2014

卷号：5

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000338830600001)】；

基金：Financial supports from National Natural Science Foundation of China (Project No.: 51271077, U1362104) and Shanghai Nanoscience and Nanotechnology Promotion Center (Project No.: 12nm0503300) are greatly acknowledged. Thanks also go to L. F. Su, J. Ma, and Z. P. Wu for their early work on CNTs in our laboratory.

语种：英文

摘要：Macroscopic fibres made up of carbon nanotubes exhibit properties far below theoretical predictions and even much lower than those for conventional carbon fibres. Here we report improvements of mechanical and electrical properties by more than one order of magnitude by pressurized rolling. Our carbon nanotubes self-assemble to a hollow macroscopic cylinder in a tube reactor operated at high temperature and then condense in water or ethanol to form a fibre, which is continually spooled in an open-air environment. This initial fibre is densified by rolling under pressure, leading to a combination of high tensile strength (3.76-5.53 GPa), high tensile ductility (8-13%) and high electrical conductivity ((1.82-2.24) x 10(4) S cm(-1)). Our study therefore demonstrates strategies for future performance maximization and the very considerable potential of carbon nanotube assemblies for high-end uses.