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首页> 外文期刊>Advanced energy materials >3D Porous-Fe2O3@C Nanocomposite as High-Performance Anode Material of Na-Ion Batteries
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3D Porous-Fe2O3@C Nanocomposite as High-Performance Anode Material of Na-Ion Batteries

机译：3D多孔Fe2O3 @ C​​纳米复合材料作为钠离子电池的高性能负极材料

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摘要

A simple and template-free method for preparing three-dimensional (3D) porous -Fe2O3@C nanocomposite is reported using an aerosol spray pyrolysis technology. The nanocomposite contains inner-connected nanochannels and -Fe2O3 nanoparticles (5 nm) uniformly embedded in a porous carbon matrix. The size of -Fe2O3 nanograins and carbon content can be controlled by the concentration of the precursor solution. The unique structure of the 3D porous -Fe2O3@C nanocomposite offers a synergistic effect to alleviate stress, accommodate large volume change, prevent nanoparticles aggregation, and facilitate the transfer of electrons and electrolyte during prolonged cycling. Consequently, the nanocomposite shows high-rate capability and long-term cyclability when applied as an anode material for Na-ion batteries (SIBs). Due to the simple one-pot synthesis technique and high electrochemical performance, 3D porous -Fe2O3@C nanocomposites have a great potential as anode materials for rechargeable SIBs.
机译：使用气溶胶喷雾热解技术报道了一种简单且无模板的制备三维（3D）多孔-Fe2O3 @ C​​纳米复合材料的方法。纳米复合材料包含内部连接的纳米通道和均匀嵌入多孔碳基质中的-Fe2O3纳米颗粒（5 nm）。 -Fe 2 O 3纳米颗粒的大小和碳含量可以通过前体溶液的浓度来控制。 3D多孔-Fe2O3 @ C​​纳米复合材料的独特结构具有协同效应，可缓解应力，适应较大的体积变化，防止纳米粒子聚集并在延长的循环过程中促进电子和电解质的转移。因此，当用作Na-离子电池（SIB）的负极材料时，纳米复合材料显示出高速率能力和长期可循环性。由于简单的一锅法合成技术和高电化学性能，3D多孔-Fe2O3 @ C​​纳米复合材料作为可再充电SIB的阳极材料具有巨大的潜力。

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  • 来源
    《Advanced energy materials》 |2015年第5期|1-7|共7页
  • 作者

    Ning Zhang; Xiaopeng Han; Yongchang Liu; Xiaofei Hu; Qing Zhao; Jun Chen;

  • 作者单位

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

    Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering College of Chemistry Nankai University Tianjin China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    3D porous composites; anodes; iron oxides; sodium-ion batteries; spray pyrolysis;

    机译：3D多孔复合材料;阳极;氧化铁;钠离子电池;喷雾热解;

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