高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (7): 1134.doi: 10.7503/cjcu20160808

• 研究论文: 无机化学 • 上一篇    下一篇

MoS2多级纳米结构的合成及锂离子电池性能

冯慧杰, 郑文君()   

  1. 南开大学化学学院, 先进能源材料化学教育部重点实验室, 天津化学化工协同创新中心, 天津 300071
  • 收稿日期:2016-11-21 出版日期:2017-07-10 发布日期:2017-06-20
  • 作者简介:联系人简介: 郑文君, 男, 博士, 教授, 主要从事无机合成与材料化学研究. E-mail: zhwj@nankai.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21371101, 51672135, 21421001)和高等学校学科创新引智计划项目(批准号: B12015)资助

Synthesis of MoS2 Hierarchical Nanostructure and Its Performance for Lithium-ion Battery

FENG Huijie, ZHENG Wenjun*()   

  1. College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education,Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Nankai University,Tianjin 300071, China
  • Received:2016-11-21 Online:2017-07-10 Published:2017-06-20
  • Contact: ZHENG Wenjun E-mail:zhwj@nankai.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21371101, 51672135, 21421001) and the Programme of Introducing Talents of Discipline to Universities, China(No;B12015)

摘要:

采用水热法, 在200 ℃, S/Mo摩尔比为4.3∶1的条件下, 水热反应24 h, 合成出由MoS2纳米片堆积而成的花墙状多级纳米结构. 利用X射线粉末衍射仪(XRD)、 场发射扫描电子显微镜(FESEM)、 透射电子显微镜(TEM)和X射线光电子能谱仪(XPS)等对产物物相和形貌进行了表征. 结果表明, MoS2纳米片厚度约为10 nm, 花墙状多级纳米结构可达十至数十微米, 具有较好的均匀性. MoS2多级纳米结构作为锂离子电池负极材料, 在高电流密度下表现出良好的循环稳定性.

关键词: 二硫化钼, 多级纳米结构, 水热合成, 锂离子电池

Abstract:

MoS2 hierarchical nanostructure was synthesized by hydrothermal method under the molar ratio of S/Mo=4.3∶1 at 200 ℃ for 24 h. The synthesized product was characterized by X-ray powder diffractometer(XRD), field emission scanning electron microscope(SEM), transmission electron microscope(TEM) and X-ray photoelectron spectrometer(XPS). The results show that the product presents uniform tracery-wall-like hierarchical nanostructure, which is assembled by some nanoplates with the thickness of ca. 10 nm, and its width can reach several micrometers to tens of micrometers. As lithium-ion battery anode material, the MoS2 hierarchical nanostructure exhibit superior excellent cycling stability at high current density.

Key words: Molybdenum disulfide, Hierarchical nanostructure, Hydrothermal synthesis, Lithium-ion battery

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