In situ synthesis of ultra-fine, porous, tin oxide-carbon nanocomposites via a molten salt method for lithium-ion batteries
Ultra-fine, porous, tin oxide–carbon (SnO 2/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 SnO 2. The structure and morphology are confirmed by X-ray diffraction...
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Veröffentlicht in: | Journal of power sources 2010-08, Vol.195 (16), p.5382-5386 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Ultra-fine, porous, tin oxide–carbon (SnO
2/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 SnO
2. 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 SnO
2 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. |
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ISSN: | 0378-7753 1873-2755 |
DOI: | 10.1016/j.jpowsour.2010.02.084 |