滤纸为模板制备中空SnO2纳米管锂离子电池负极材料

无机材料学报, 2013, 28(11): 1213-1216. doi: 10.3724/SP.J.1077.2013.13124

滤纸为模板制备中空SnO2纳米管锂离子电池负极材料

毛瑞 ^1, , 郭洪 ^2, , 田冬雪 ^3, , 杨项军 ^4, , 王世雄 ^5, , 陈景 ^6,

1.云南大学化学科学与工程学院,昆明,650091

2.云南大学化学科学与工程学院,昆明650091;曲靖师范学院化学科学与工程学院,曲靖655000

3.云南大学化学科学与工程学院,昆明,650091

4.云南大学化学科学与工程学院,昆明,650091

5.云南大学化学科学与工程学院,昆明,650091

6.云南大学化学科学与工程学院,昆明,650091

基金项目: 国家重点基础研究发展规划(863计划) 教育部国家重点项目(210204) 国家自然科学基金(U0937601) (2011AA03A405) National Natural Science Foundation of China(U0937601) 863 Program of National High Technology Research Development Project of China(2011AA03A405) Financial support provided by Department Science Foundation of China(210204)

关键词： SnO2 , 纳米管 , 纤维素 , 锂离子电池

Hollow Nanotubular SnO2 Templated by Cellulose Fibers for Lithium Ion Batteries

Keywords： tin oxide , nanotube , natural cellulose , Li-ion batteries

以植物纤维素(滤纸)为模板,制备了中空SnO2纳米管作为锂离子电池负极材料.通过XRD、SEM、TEM和HR-TEM表征产物的组分、形貌和结构,表明合成材料是由粒度大小为5～15 nm SnO2粒子组装成的中空纳米管.同时,N2吸附/脱附测试表明此材料为疏松的介孔结构.材料在电流密度100 mA/g时,可逆容量稳定在580 mAh/g,60次循环后容量仍保持为550 mAh/g.制备的中空SnO2纳米管作为锂离子电池负极材料,具有较高的放电容量和良好的电化学循环性能.

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