泡沫镍表面负载NiCo2O4样品的制备及其电化学性能的研究

doi:10.16039/j.cnki.cn22-1249.2019.11.001

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摘要

通过先水热合成，再煅烧的方法在泡沫镍表面原位生长了两种不同形貌的NiCo₂O₄阵列。分别对它们进行了X射线衍射（XRD），扫描电镜（SEM），循环伏安（CV）和恒电流充放电（GCD）等测试。结果显示，样品为纯相的NiCo₂O₄，在泡沫镍表面生长饱满且形貌均匀。同时，制备的样品电化学性能的测试显示：水热反应的混合溶液中的乙醇和水的比例为1：6条件下制备的样品在电流密度为3 mA/cm²的条件下，面积比电容达到了1.57 F/cm²；混合溶液中的乙醇和水的比例为3：4条件下制备的样品在电流密度为3 mA/cm²的条件下，面积比电容达到了1.28 F/cm²。本实验合成的样品倍率性较为良好。

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	吕洋
	张跃伟
	于雪

关键词: NiCo₂O₄ 泡沫镍水热合成超级电容器

Abstract:

NiCo₂O₄ arrays with two different morphologies were synthesized on nickel foam through a hydrothermal method followed by a calcination process. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) experiments were carried out to them respectively. Results show that the samples are pure NiCo₂O₄, cover fully on the surface of Ni foam and morphologies uniformity. Moreover, the electrochemical measurements indicate: the sample synthesized with hydrothermal solution ratio of alcohol to water is 1:6, exhibited an areal specific capacitance as high as 1.57 F/cm² at a current density of 3 mA/cm²; the sample synthesized with hydrothermal solution ratio of alcohol to water is 3:4, exhibited an areal specific capacitance as high as 1.28 F/ cm2 at a current density of 3 mA/cm². Furthermore, the sample synthesized in this paper shows robust rate capability.

Key words: NiCo₂O₄ nickel foam hydrothermal method supercapacitor

出版日期: 2019-11-25 发布日期: 2019-11-25 整期出版日期: 2019-11-25

O 611.4

引用本文:

吕洋, 张跃伟, 于雪. 泡沫镍表面负载NiCo₂O₄样品的制备及其电化学性能的研究 [J]. 吉林化工学院学报, 2019, 36(11): 1-4.
LV Yang, ZHANG Yuewei, YU Xue. The Synthesis and Electrochemical Properties of NiCo₂O₄ Arrays on Nickel Foam . Journal of Jilin Institute of Chemical Technology, 2019, 36(11): 1-4.

链接本文:

https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.11.001 或 https://xuebao.jlict.edu.cn/CN/Y2019/V36/I11/1

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