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Constructing aligned γ-Fe2O3 nanorods with internal void space anchored on reduced graphene oxide nanosheets for excellent lithium storage

机译:用内部空隙空间构建对齐的γ-Fe2O3纳米棒,锚固在石墨烯氧化物纳米片上的优良锂储存

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摘要

Unique 1D aligned γ-Fe2O3 nanorods anchored on 2D reduced graphene oxide nanosheets were successfully synthesized by a facile seed-assisted solution reaction and subsequent thermal decomposition method. The structural and compositional analyses by employing X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) show that each γ-Fe2O3 nanorod possesses internal void spaces. The special structural nature of the γ-Fe2O3 nanorods together with the hierarchical nanoarchitectures is responsible for a large specific surface area of ~193.6 m~2 g~(-1) . When evaluated as an anode material for LIBs, the as-prepared composite electrodes delivered superior capacity, better cycling stability and rate capability. The excellent lithium storage properties are attributed to the advantageous structural features.
机译:通过容易的种子辅助溶液反应和随后的热分解方法成功地合成锚定在2D的石墨烯氧化物纳米片上锚定的独特的1D对准γ-Fe2O3纳米棒。 通过采用X射线衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM)和X射线光电子谱(X射线光电子光谱(XPS)来结构和成分分析表明每个γ-Fe2O3纳米棒具有内部空隙空间。 γ-Fe2O3纳米棒与等级纳米建筑一起的特殊结构性质负责〜193.6m〜2g〜(-1)的大比表面积。 当评估为LIBS的阳极材料时,AS制备的复合电极输送了优异的容量,更好的循环稳定性和速率能力。 优异的锂储存性能归因于有利的结构特征。

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  • 来源
    《RSC Advances》 |2015年第111期|共7页
  • 作者单位

    Institute of Electrostatic &

    Electromagnetic Protection Mechanical Engineering College Shijiazhuang 050003 China;

    Beijing National Center for Electron Microscopy School of Materials Science and Engineering The State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials (MOE) Tsinghua University Beijing 100084 China.;

    Beijing National Center for Electron Microscopy School of Materials Science and Engineering The State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials (MOE) Tsinghua University Beijing 100084 China.;

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