| 石墨烯包覆碳纳米管-硫(CNT-S)复合材料及锂硫电池性能 |
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| 引用本文： | 郑加飞,郑明波,李念武,吕洪岭,邱兰,曹洁明,姬广斌.石墨烯包覆碳纳米管-硫(CNT-S)复合材料及锂硫电池性能[J].无机化学学报,2013,29(7):1355-1360. |
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| 作者姓名： | 郑加飞 郑明波 李念武 吕洪岭 邱兰 曹洁明 姬广斌 |
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| 作者单位： | 南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016;南京大学, 微结构国家实验室, 电子科学与工程学院, 南京 210093;南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016;南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016;南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016;南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016;南京航空航天大学, 材料科学与技术学院, 纳米材料研究所, 南京 210016 |
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| 基金项目： | 国家自然科学基金(No.51202106,No.51172109)及江苏省自然科学基金(No.BK2010497)资助项目。 |
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| 摘 要： | 针对锂硫电池研究与实际应用中遇到的主要问题,本文通过一种简单有效的水热法还原氧化石墨烯对商用碳纳米管-硫(CNT-S)纳米复合材料进行包覆,形成一种可有效抑制多硫聚合物扩散的石墨烯包覆结构。X射线衍射(XRD),扫描电子显微镜(SEM)表征结果表明硫均匀地负载在碳纳米管上,并且在CNT-S复合材料外表面包覆有一层石墨烯。电化学测试结果表明,这种包覆结构能显著提高CNT-S复合材料的锂硫电池性能。
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| 关 键 词： | 石墨烯 锂硫电池 碳纳米管 硫 |
| 收稿时间： | 2013/1/10 0:00:00 |
| 修稿时间： | 2013/3/15 0:00:00 |
Preparation of Graphene Coated Carbon Nanotube-Sulfur Composite and Its Performance for Lithium-Sulfur Battery |
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| ZHENG Jia-Fei,ZHENG Ming-Bo,LI Nian-Wu,LU Hong-Ling,QIU Lan,CAO Jie-Ming and JI Guang-Bin.Preparation of Graphene Coated Carbon Nanotube-Sulfur Composite and Its Performance for Lithium-Sulfur Battery[J].Chinese Journal of Inorganic Chemistry,2013,29(7):1355-1360. |
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| Authors: | ZHENG Jia-Fei ZHENG Ming-Bo LI Nian-Wu LU Hong-Ling QIU Lan CAO Jie-Ming and JI Guang-Bin |
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| Institution: | Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Nanjing National Laboratory of Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | To solve the main problems encountered in the lithium-sulfur battery research and practical application, a simple and effective hydrothermal reduction of graphene oxide was employed to encapsulate commercial carbon nanotube-sulfur (CNT-S) nanocomposite in this study, then an effective type of graphene coated CNT-S nanostructure was formed. The polysulphide anions diffusion phenomenon was effectively restrained by the graphene coating structure. The nanocomposites were characterized by X-ray diffraction and scanning electron microscope. The results indicated that elemental sulfur was uniformly distributed across the CNT, and a layer of graphene coated on the surface of CNT-S nanocomposite. The electrochemical test results showed that the graphene coating nanostructure obviously improved the lithium-sulfur battery performance of the CNT-S nanocomposite. |
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| Keywords: | graphene lithium-sulfur battery carbon nanotube sulfur |
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