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In situ synthesis of ultra-fine, porous, tin oxide-carbon nanocomposites via a molten salt method for lithium-ion batteries |
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| Authors: | Bin Liu Zai Ping Guo Guodong Du Yanna Nuli Mohd Faiz Hassan Dianzeng Jia |
| Affiliation: | a Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, PR China b Institute for Superconducting & Electronic Materials, University of Wollongong, NSW 2522, Australia c School of Mechanical, Materials & Mechatronics Engineering, University of Wollongong, NSW 2522, Australia d Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China e School of Science, Xinjiang Eduction Institute, Urumqi, Xinjiang, PR China |
| Abstract: | Ultra-fine, porous, tin oxide-carbon (SnO2/C) nanocomposites are fabricated by a molten salt method at 300 °C, and malic acid is decomposed as the carbon source. In situ synthesis is favourable for the combination of carbon and SnO2. The structure and morphology are confirmed by X-ray diffraction analysis, specific surface-area measurements, and transmission electron microscopy (TEM). Examination of TEM images reveals that the SnO2 nanoparticles are embedded in the carbon matrix, with sizes between 2 and 5 nm. The electrochemical measurements show that the nanocomposite delivers a high capacity with good capacity retention as an anode material for lithium-ion batteries, due to the combination of the ultra-fine porous structure and the carbon component. |
| Keywords: | Ultra-fine, porous, tin oxide-carbon nanocomposites Molten salt Anode Lithium-ion battery |
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