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Tin-based materials supported on nitrogen-doped reduced graphene oxide towards their application in lithium-ion batteries

机译:基于锡的材料支持氮气掺杂的石墨烯氧化物,朝向其在锂离子电池中的应用

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摘要

Recently, nitrogen-doped graphene has attracted significant attention for application as an anode in lithium-ion batteries due to effective modulation of the electronic properties of graphene. Herein, we report a facile route to successfully synthesize a series of tin-based materials (including Sn, SnO2, and SnS2) supported on N-doped reduced graphene oxide (N-rGO). Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) images indicated that the Sn-based materials were uniformly and tightly dispersed on the surface of N-rGO. When used as an anode in LIBs, the electrochemical performances of the proposed electrodes were systematically investigated and compared. The results show that among these electrodes, SnS2/N-rGO with a matched layered structure delivers the best performance with not only high specific capability but also excellent cycling stability.
机译:最近,由于有效调制石墨烯的电子性质,氮气掺杂的石墨烯在锂离子电池中的阳极吸引了显着的关注。 在此,我们报告了一种容易途径以成功地合成支持在N掺杂的石墨烯氧化物(N-RGO)上的一系列基于锡的基础材料(包括Sn,SnO2和SNO 2)。 场发射扫描电子显微镜(FeSEM)和透射电子显微镜(TEM)图像表明,Sn基材料均匀地分散在N-RGO的表面上。 当用作LIB中的阳极时,系统地研究了所提出的电极的电化学性能并进行比较。 结果表明,在这些电极中,带有匹配的分层结构的SNS2 / N-RGO具有不仅具有高特定能力的最佳性能,而且提供了优异的循环稳定性。

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  • 来源
    《RSC Advances》 |2017年第84期|共9页
  • 作者单位

    Henan Normal Univ Sch Chem &

    Chem Engn Collaborat Innovat Ctr Henan Prov Green Mfg Fine Xinxiang 453007 Peoples R China;

    Henan Normal Univ Sch Chem &

    Chem Engn Collaborat Innovat Ctr Henan Prov Green Mfg Fine Xinxiang 453007 Peoples R China;

    Natl Inst Mat Sci 1-1 Namiki Tsukuba Ibaraki 3050044 Japan;

    Henan Normal Univ Sch Chem &

    Chem Engn Collaborat Innovat Ctr Henan Prov Green Mfg Fine Xinxiang 453007 Peoples R China;

    Henan Normal Univ Sch Chem &

    Chem Engn Collaborat Innovat Ctr Henan Prov Green Mfg Fine Xinxiang 453007 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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