化工新型材料

化工新型材料 ›› 2024, Vol. 52 ›› Issue (10) : 78-82. DOI: 10.19817/j.cnki.issn1006-3536.2024.10.011

新材料与新技术

蜂窝结构NiCo₂S₄@MnO₂电极材料的制备及储能效果研究

张曼, 王盈雪, 韩继续, 谢晓茹, 王嘉丽, 张鑫如

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Preparation and energy storage performance study of honeycomb structured NiCo₂S₄@MnO₂ electrode material

Zhang Man, Wang Yingxue, Han Jixu, Xie Xiaoru, Wang Jiali, Zhang Xinru

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Received		Published
2023-06-26		2024-10-20
Issue Date	Revised Date
2024-10-17	2023-06-26

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摘要

以泡沫镍为基底,将镍钴硫化物与MnO₂复合制备了蜂窝结构NiCo₂S₄@MnO₂电极材料,通过扫描电子显微镜、X射线衍射仪、X射线光电子能谱仪对其形貌、结构、元素组成及价态进行了表征,在三电极体系中通过电化学工作站对电极材料进行线性扫描伏安测试和交流阻抗测试。结果表明:NiCo₂S₄@MnO₂为自支撑蜂窝结构电极材料,蜂窝结构很大程度上增加了产物的比表面积,为离子的存储提供了大量的空间;NiCo₂S₄@MnO₂中含有NiCo₂S₄和MnO₂且单一组分未遭到破坏,其曲线的形态和峰的位置几乎没有发生改变。NiCo₂S₄@MnO₂具有良好的电化学性能,电阻为0.2949Ω,其电荷转移阻力和阻抗较低,离子转移能力较快,具有更高的导电率。

Abstract

A honeycomb structured NiCo₂S₄@MnO₂ electrode material was prepared by compositing nickel cobalt sulfide with MnO₂ using nickel foam as the substrate.The morphology,structure,elemental composition,and valence states were characterized by scanning electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy.Linear sweep voltammetry and AC impedance testing were performed on the electrode material in a three-electrode system using an electrochemical workstation.The results indicated that NiCo₂S₄@MnO₂ was a self-supporting honeycomb structured electrode material,and the honeycomb structure greatly increased the specific surface area of the product,providing a large amount of space for ion storage.NiCo₂S₄@MnO₂ contained NiCo₂S₄ and MnO₂,and the single component had not been damaged.The shape of the curve and the position of the peak were almost unchanged.NiCo₂S₄@MnO₂ had good electrochemical performance,with a resistance of 0.2949Ω.It had low charge transfer resistance and impedance,fast ion transfer ability,and higher conductivity.

关键词

超级电容器 / 镍钴硫化物 / 电极材料 / 二氧化锰 / 蜂窝结构

Key words

supercapacitor / nickel cobalt sulfide / electrode material / manganese dioxide / honeycomb structure

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蜂窝结构NiCo₂S₄@MnO₂电极材料的制备及储能效果研究[J]. 化工新型材料, 2024, 52(10): 78-82 DOI:10.19817/j.cnki.issn1006-3536.2024.10.011

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