磺酸基修饰石墨烯复合材料的储钠性能研究

Qianxin Wu, Lei Liu, Jinmeng Sun, Yifan Li, Yuhang Liu, Hongfang Du, Wei Ai, Zhuzhu Du, Ke Wang

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

The functionalized graphene, with prominent capability over expansion of interlayer spacing and enhancement of sodium ion diffusivity, has gained paramount interests in fabricating anode of sodium ion batteries(SIBs).Here, a poly(sodium 4-vinylbenzenesulfonate)graphene composite(PSS-rGO) was synthesized via an in situ insertion process. The insertion structure is based on the π-π interaction between the electron of graphene and the electron of PSS, which expands the interlayer spacing of rGO and, more importantly, stabilizes the structure of the composites, restrains the stack of graphene. Beyond that, the introduced sodium sulfonate groups are capable of increasing the diffusion rate of sodium ions for fast sodium ion adsorption, ensuring superior cycling performance. The performances of the simples were characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction(XRD), Raman spectrometer(Raman), X-ray photoelectron spectrometer(XPS), electrochemical workstation and battery detection system.The results show the PSS-rGO remains a reversible capacity of 256 mAh•g-1 at 5 A•g-1 after 6000 cycles, with an ultralow decay rate of 0.003%.This work provides a feasible avenue for exploring advanced organic-inorganic hybrid materials with high capacity, fast sodium storage and ultralong lifespan for SIBs.

投稿的翻译标题Sodium ions storage performance of PSS-rGO composites
源语言繁体中文
页(从-至)36-43
页数8
期刊Cailiao Gongcheng/Journal of Materials Engineering
50
4
DOI
出版状态已出版 - 20 4月 2022

关键词

  • Anode material
  • Graphene
  • In situ interaction
  • Sodium ions battery
  • Sodium sulfonate group

指纹

探究 '磺酸基修饰石墨烯复合材料的储钠性能研究' 的科研主题。它们共同构成独一无二的指纹。

引用此