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Synthesis of polyaniline-sulfur composites with different nanostructures via an interfacial emulsification method and a micelle template method and their properties

机译：不同纳米结构通过界面乳化法和胶束模板法的合成聚苯胺 - 硫复合材料及其性质

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摘要

Herein, polyaniline (PANI)-S with a nano-microsphere structure was synthesized via an interfacial emulsification method using Triton X-100 as an emulsifier and hydrochloric acid (HCl) as a dopant and covering element sulfur. Moreover, PANI-S with a nanotubular structure was synthesized via a micelle template method using sodium dodecyl sulfonate (SDS) as a template and HCl as a dopant, followed by heating with 40 wt%, 60 wt%, and 70 wt% element sulfur. The two kinds of polyaniline-sulfur (PANI-S) composites were separately characterized by scanning electron microscopy (SEM), FTIR spectroscopy, energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), etc. Their electrochemical performances were also investigated, and the results showed that as the sulfur content increased, the electrochemical performance of the PANI-S (synthesized via the SDS/HCl template method) electrode improved due to the increase in the amount of the active substance in the electrode. Compared with nano-microsphere PANI-S, nanotube PANI-S has higher specific capacity (1102.01 mA h g(-1)), more stable cycle performance, and better rate performance, suggesting that an excellent lithium-sulfur battery can be prepared by designing an electrode material structure using nanotube PANI-S.
机译：这里，聚苯胺（PANI）-S具有纳米微球结构通过使用界面乳化法合成的Triton X-100作为乳化剂和盐酸（HCl）作为掺杂剂和覆盖元件的硫。此外，PANI-S具有纳米管状结构通过使用十二烷基磺酸钠（SDS）作为模板和HCl作为掺杂剂，然后用40重量％，60重量％加热70重量％元素硫胶束模板法，并合成。两种聚苯胺 - 硫的（PANI-S）的复合材料分别特征在于扫描电子显微镜（SEM），红外光谱，能量色散X射线光谱（EDS），热重分析（TGA），X射线光电子能谱（XPS ）等。它们的电化学性能进行了研究，并显示其结果，随着硫含量增大时，PANI-S的电化学性能（通过SDS /盐酸模板法）电极因的量的增加改善了合成活性物质在电极。具有纳米微球PANI-S相比，碳纳米管PANI-S具有较高的比容量（1102.01毫安汞柱（-1）），更稳定的循环性能，以及更好的倍率性能，这表明优异的锂硫电池可通过设计来制备一个使用碳纳米管PANI-S电极材料的结构。

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  • 来源
    《RSC Advances》 |2020年第19期|共8页
  • 作者

    Wang Jing; Zhang Shichao;

  • 作者单位

    Bei Hang Univ Sch Mat Sci &

    Engn Beijing Peoples R China;

    Bei Hang Univ Sch Mat Sci &

    Engn Beijing Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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