| 中空Fe203/G-NS纳米复合材料的制备和储锂性能 |
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| 引用本文： | 邹琼,宰建陶,刘萍,钱雪峰.中空Fe203/G-NS纳米复合材料的制备和储锂性能[J].高等学校化学学报,2011,32(3):630-634. |
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| 作者姓名： | 邹琼 宰建陶 刘萍 钱雪峰 |
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| 作者单位： | 上海交通大学化学化工学院,金属基复合材料国家重点实验室,上海,200240 |
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| 基金项目： | 国家"九七三"计划项目，国家自然科学基金，高性能陶瓷和超微结构国家重点实验室开放课题基金 |
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| 摘 要： | 以三氯化铁和氧化石墨烯(Graphite oxide,GO)为原料,采用水热法一步合成了中空Fe2O3/石墨烯(Graphene nanoslheet,GNS)纳米复合材料.研究结果表明,Fe2O3/GNS纳米复合材料的形成是由于Fe3+催化氧化GO中的羧基等官能团释放出CO2,并以原位形成的CO2气泡为模板形成了中空...
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| 关 键 词： | Fe2O3/GNS纳米复合材料 锂离子电池 石墨烯 中空材料 |
| 收稿时间： | 2010-10-15 |
Synthesis and Lithium Storage Properties of Hollow Fe2O3/Graphene Nanocomposites |
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| ZOU Qiong,ZAI Jian-Tao,LIU Ping,QIAN Xue-Feng.Synthesis and Lithium Storage Properties of Hollow Fe2O3/Graphene Nanocomposites[J].Chemical Research In Chinese Universities,2011,32(3):630-634. |
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| Authors: | ZOU Qiong ZAI Jian-Tao LIU Ping QIAN Xue-Feng |
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| Institution: | National Key Laboratory of Metallic Matrix Composite Material, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Hollow Fe2O3/Graphene nanocomposites were synthesized by a hydrothermal method, and they were characterized by XRD and SEM. A plausible formation mechanism of the composite could be based on the catalytic oxidation of carboxyl et. al. groups of GO in the presence of Fe3+ ions to form GNS, and the released CO2 provided templates for the formation of hollow Fe2O3, and then hollow Fe2O3/Graphene nanocomposites were formed in-situ. The obtained nanocomposites show excellent Li storage performances. After 50 cycles, a capacity of 520 mAh g-1 (437 mAh g-1) was kept at a high current density of 200 mA g-1 (400 mA g-1). |
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| Keywords: | Fe2O3/GNS nanocomposite Lithium-ion battery Hydrothermal Hollow materials |
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