Synthesis of uniform polycrystalline tin dioxide nanofibers and electrochemical application in lithium-ion batteries

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• 作者：Zunxian Yang ; Guodong Du ; Chuanqi Feng ; Sean Li ; Zhixin Chen ; Peng Zhang ; Zaiping Guo ; Xuebin Yu ; Guonan Chen ; Shizhen Huang ; Huakun Liu
• 关键词：Tin dioxide ; Nanofibers ; Polycrystalline ; Electrospinning ; Electrochemical
• 刊名：Electrochimica Acta
• 出版年：2010
• 出版时间：30 July 2010
• 年：2010
• 卷：55
• 期：19
• 页码：5485-5491
• 全文大小：1739 K

文摘

Under optimized synthesis conditions, very large area uniform SnO₂ nanofibers consisting of orderly bonded nanoparticles have been obtained for the first time by thermal pyrolysis and oxidization of electrospun tin(II)2-ethylhexanoate/polyacrylonitrile (PAN) polymer nanofibers in air. The structure and morphology were elaborated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The SnO₂ nanofibers delivered a reversible capacity of 446 mAh g⁻¹ after 50 cycles at the 100 mA g⁻¹ rate and excellent rate capability of 477.7 mAh g⁻¹ at 10.0 C. Owing to the improved electrochemical performance, this electrospun SnO₂ nanofiber could be one of the most promising candidate anode materials for the lithium-ion battery.