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调整和提高离子电池的电荷储存容量,使用Eu_xCu_1-xFe₂O₄作为电极材料

Hafsa Yasmeen¹, Amna Bashir², Noshabah Tabassum¹

¹Department of Environmental Sciences, Fatima Jinnah Women University The Mall, Rawalpindi, 46000, Pakistan.

Scientific reports

|December 14, 2025

概括

用欧添加的铜铁 (CuFe2O4) 纳米复合材料显示出作为离子电池 (LIB) 的阳极材料的前景. 3mol%的Eu-doped材料实现了850mAhg-1的高容量,在100个循环中保持出色的稳定性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

铜铁 (CuFe2O4) 正在作为离子电池 (LIB) 的阳极材料进行探索,因为其适用于高频应用的特性.
纳米复合材料的合成和表征对于优化电化学性能至关重要.
用欧洲 (Eu) 等稀土元素进行兴奋剂可以增强材料的性能.

研究的目的:

通过热水方法合成纯和欧化CuFe2O4纳米复合材料.
描述合成材料的结构,形态和元素性质.
在LIBs中评估这些纳米复合材料作为阳极材料的电化学性能.

主要方法:

对于CuFe2O4纳米复合材料制剂的热水合成.
用于晶体结构和相纯度分析的X射线衍射 (XRD).
扫描电子显微镜 (SEM) 和能量散射X射线光谱 (EDX) 用于形态学和元素组成.
电静电充放电 (GCD) 和循环电压计 (CV) 用于电化学评估.

主要成果:

通过XRD.成功合成了四旋相CuFe2O4,没有检测到XRD.的二次相.
SEM揭示了垂直堆叠的纳米棒的珠状架构.
用3mol%Eu (CuFe2O4-3 mol%Eu) 合的CuFe2O4纳米复合材料实现了850mAhg-1.1的特异性放电容量.
观察到极好的周期稳定性,在0.1 Ag-1.1的100个周期中保持97%的容量.

结论:

用欧添加的铜铁酸纳米复合材料显示出作为离子电池的高效阳极材料的巨大潜力.
EuxCu1−xFe2O4纳米复合材料提供了高能量储存和长期电化学稳定的有利平衡.
这项研究有助于开发用于储能应用的先进材料.

关键词:

在CuFe2O4的基础上,欧洲 (Europium) 是一种水热法是一种水热法.离子电池是一种离子电池.

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