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Facile synthesis of perovskite CeMnO3 nanofibers as an anode material for high performance lithium-ion batteries

机译:钙钛矿CEMNO3纳米纤维作为高性能锂离子电池的阳极材料

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摘要

A facile synthesis of perovskite-type CeMnO3 nanofibers as a high performance anode material for lithium-ion batteries was demonstrated. The nanofibers were prepared by the electrospinning technique. The characterization of CeMnO3 nanofibers was carried out by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy. SEM images manifested nanofibers with a diameter of 470 nm having a rough surface with a porous structure. TEM images were consistent with the observations from the SEM images. The electrochemical properties of CeMnO3 perovskite in lithium-ion batteries were investigated. The CeMnO3 anode exhibited a discharge capacity of 2159 mA h g(-1) with a coulombic efficiency of 93.79%. In addition, a high cycle stability and a capacity of 276 mA h g(-1) at the current density of 1000 mA g(-1) can be effectively maintained due to the high Li+ conductivity in the CeMnO3 anode. This study could provide an efficient and potential application of perovskite-type CeMnO3 nanofibers in lithium-ion batteries.
机译:证明了作为锂离子电池的高性能阳极材料的Perovskite型Cemno3纳米纤维的容易合成。通过静电纺丝技术制备纳米纤维。 CEMNO3纳米纤维的表征通过X射线衍射,傅里叶变换红外光谱,扫描电子显微镜(SEM),透射电子显微镜(TEM)和X射线光电子谱进行。 SEM图像表现出直径为470nm的纳米纤维,具有多孔结构的粗糙表面。 TEM图像与来自SEM图像的观察结果一致。 CeMnO3钙钛矿的在锂离子电池的电化学特性进行了研究。 CEMNO3阳极表现出2159 mA H G(-1)的放电容量,水库效率为93.79%。另外,由于CEMNO3阳极中的高LI +电导率,可以有效地保持在电流密度的高循环稳定性和276mA H(-1)的容量,并且可以有效地保持1000mA G(-1)的电流密度。该研究可以提供锂离子电池中Perovskite型Cemno3纳米纤维的有效和潜在应用。

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    《RSC Advances》 |2019年第65期|共9页
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  • 正文语种 eng
  • 中图分类 化学;
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