碳包覆锡锑合金纳米纤维的制备及应用  

Preparation and application of carbon-coated tin antimony alloy nanofibers

作　　者：牛潇[1] 唐新军[1] 夏鑫[1] 单小红[1] 

机构地区：[1]新疆大学纺织与服装学院,新疆乌鲁木齐830046

出　　处：《纺织学报》2015年第3期1-5,共5页Journal of Textile Research

基　　金：国家自然科学基金资助项目(51163014)

摘　　要：以氧化锡锑纳米颗粒(Sn0.92Sb0.08O2.04)为前驱体,葡萄糖为碳源,用水热合成法制备碳包覆锡锑合金,然后采用静电纺丝技术制备碳包覆Sn Sb/C纳米纤维。应用透射电子显微镜、扫描电子显微镜对碳包覆锡锑合金纳米颗粒及纤维的形貌进行表征,利用X射线衍射仪分析了碳包覆锡锑合金混合纳米纤维的晶型结构。研究了碳包覆Sn Sb/C纳米纤维作为一种高容量锂离子电池负极材料的电化学性能。结果表明,成功制备了碳包覆锡锑合金纳米纤维;随着纳米纤维中碳包覆锡锑合金含量的增加,制备的负极材料具有较高的可逆容量及较好的循环性能。Carbon-coated tin antimony alloy particles were prepared by hydrothermal method using antimony tin oxide nanoparticles（ Sn0. 92Sb0. 08O2. 04） as the precursor and glucose as the carbon source,then the electrostatic spinning technique was used to prepare carbon-coated Sn Sb / C nanofibers.Transmission electron microscopy and scanning electron microscopy were used to characterize the morphology of carbon-coated tin antimony nanoparticles and nanofibers,and an X-ray diffractometer was used to assess the structure of nanofibers. The electrochemical properties of carbon-coated Sn Sb / C nanofibers were investigated as a potential high-capacity cathode material for lithium-ion batteries. The results showed that the carbon-coated tin antimony alloy nanofibers were prepared successfully. With the increase of the carbon coated tin antimony alloy content of nanofibers,negative material prepared has the high reversible capacity and good cycle performance.

关 键 词：水热合成 碳包覆锡锑合金 静电纺丝 纳米纤维 

分 类 号：TS102.5[轻工技术与工程—纺织工程] TQ342.89[轻工技术与工程—纺织科学与工程]