SnO$_{\boldsymbol{x}}$S$_{\boldsymbol{y}}$@PANI@rGO 复合材料的制备及其电化学性能
收稿日期: 2018-10-12
网络出版日期: 2021-02-28
基金资助
国家自然科学基金资助项目(21671128);国家自然科学基金资助项目(21671130);国家自然科学基金资助项目(41807304);国家自然科学基金资助项目(21805181);中国博士后科学基金资助项目(2107M611529)
Synthesis of tin-oxygen sulfide compound @poly-aniline@reduced graphene composites with superior electrochemical performance
Received date: 2018-10-12
Online published: 2021-02-28
利用水热法合成二硫化锡六方晶片, 通过氧化聚合包裹聚苯胺, 水热还原制备锡氧硫化合物@聚苯胺@还原氧化石墨烯(SnO$_{x}$S$_{y}$@PANI@rGO)复合材料. 分别利用 X 射线衍射(X-ray diffraction, XRD)、傅里叶变换红外(Fourier transform infrared, FT-IR)光谱、扫描电子显微镜(scanning electron microscope, SEM)和透射电子显微镜(transmission electron microscope, TEM)对材料进行形貌和物相分析, 结果表明: 制备的六方形 SnO$_{x}$S$_{y}$被 PANI 和 rGO 双层包覆. 将复合材料作为锂离子电池的负极进行电化学性能研究, 结果显示: 由于多元复合材料中的聚苯胺和还原石墨烯增加了其导电性, 缓冲了 SnO$_{x}$S$_{y}$ 在充放电过程的体积膨胀, 保持了结构稳定性, 展现了优越的电性能.
朱影, 周荻雯, 唐燕, 王浩, 赵攀登, 浦娴娟, 焦正, 程伶俐 . SnO$_{\boldsymbol{x}}$S$_{\boldsymbol{y}}$@PANI@rGO 复合材料的制备及其电化学性能[J]. 上海大学学报(自然科学版), 2021 , 27(1) : 78 -85 . DOI: 10.12066/j.issn.1007-2861.2104
By hydrothermal synthesis of tin disulfide hexagonal wafers, polyaniline was wrapped outside by using oxidative polymerization, and tin-oxygen sulfide compound@polyaniline@reduced graphene oxide composites were prepared by hydrothermal reduction. Characterization instruments of X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscope (SEM), and transmission electron microscope (TEM) were used to analyze the morphology and phase of the composites. The results show that the prepared hexagonal tin oxysulfide compound is double-coated by polyaniline and reduced graphene. The electrochemical properties of the composites as a negative electrode of a lithium-ion battery were investigated. The results reveal that the polyaniline and reduced graphene in the multicomponent composite increase the conductivity and buffer the volume expansion of the tin-oxygen sulfide compound during charge and discharge, maintain structural stability, and exhibit superior electrical performance.
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