Chemically shortened multi-walled carbon nanotubes used as anode materials for lithium-ion batteries |
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| Affiliation: | 1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, Fujian 350002, P.R. China;2. Graduate University of Chinese Academy of Sciences, Beijing, P.R. China;1. Institute of Bionanotechnology and Tissue Engineering, College of Life Sciences, Hunan University, Changsha 410082, China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;3. Department of Orthodontics, Xiangya Stomatological Hospital, Central South University, Changsha 410008, China;4. Changsha DMY Medical Technology Co., Ltd, Changsha 410005, China;5. Shenzhen Research Institute of Hunan University, Nanshan Hi-new Technology and Industry Park, Shenzhen 518057, China;1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian, 350002, PR China;2. University of Chinese Academy of Sciences, Beijing, 100049, PR China;1. Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924, Lodz, Poland;2. Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland;3. Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland;1. Taurida National V.I. Vernadsky University, Simferopol 295007;2. N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia;3. Institute for Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163, A-1060 Vienna, Austria |
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| Abstract: | 
An easy chemically cutting process, modified Hummers' method, was proposed to treat multi-walled carbon nanotubes, successfully cutting pristine long, entangled carbon nanotubes into hydrosoluble pieces, mostly less than 200 nm. This short, chemically oxidized carbon nanotube was then applied as an anode material for lithium-ion batteries. The as-prepared material possessed higher reversible capacity and coulombic efficiency. The intrinsic factors were explored by X-ray photoelectron spectroscopy and cyclic voltammetry. |
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| Keywords: | Carbon nanotubes Lithium-ion batteries Hummers' method |
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