ZnCo2O4电极材料的形貌调控制备与超级电容特性的研究

doi:10.13208/j.electrochem.180625

电化学（中英文） ›› 2019, Vol. 25 ›› Issue (6): 740-748. doi: 10.13208/j.electrochem.180625

ZnCo₂O₄电极材料的形貌调控制备与超级电容特性的研究

周岳珅¹，李梦¹，吴双¹，李照磊^1，2*，高延敏^1*

1. 江苏科技大学材料科学与工程学院，江苏镇江 212003；2. 南京大学材料科学和工程系，江苏南京 210093

收稿日期:2018-06-25 修回日期:2018-07-12 出版日期:2019-12-28 发布日期:2019-12-28
通讯作者: 李照磊 E-mail:JKDGaoyanmin@163.com; zllinju@126.com
基金资助:
无

Morphology Controlled Preparations and Electrochemical Properties of ZnCo₂O₄ Electrode Materials for Supercapacitors

ZHOU Yue-shen¹, LI Meng¹, WU Shuang¹, LI Zhao-lei^1,2*, GAO Yan-min^1*

1. School of Materials Science and Engineering, Jiangsu University of Science and Technology,Zhenjiang 212003, Jiangsu, China; 2. Department of material science and engineering,Nanjing university, Nanjing 210093, Jiangsu, China

Received:2018-06-25 Revised:2018-07-12 Published:2019-12-28 Online:2019-12-28
Contact: LI Zhao-lei E-mail:JKDGaoyanmin@163.com; zllinju@126.com

摘要/Abstract

摘要： 本文采用水热反应和高温将ZnCo₂O₄纳米活性材料原位生长在泡沫镍上，并通过控制前驱体溶液中NH₄F的添加量，获得了ZnCo₂O₄四种不同的形貌. 以ZnCo₂O₄-2/NF为正极，AC/NF为负极，组装得到纽扣式非对称超级电容器ZnCo₂O₄-2/NF//AC/NF. 通过X射线衍射（XRD）、场发射扫描电镜（FESEM）、透射电镜（TEM）等方法对四种形貌ZnCo₂O₄的组成和结构进行了分析. 在三电极体系下对不同形貌的ZnCo₂O₄电极进行循环伏安、恒流充放电以及电化学阻抗测试. 结果表明，当NH₄F的添加量为5 mmol时,所获得的薄纳米线团簇具有最高的面积比容量. 在电流密度为5 mA·cm^-2下，比容量为2.77 F·cm^-2. 基于正负两个电极的总面积，纽扣式非对称超级电容器的最大能量密度达到114.49 μWh·cm^-2，相应的功率密度达到4001.59 μW·cm^-2. 同时，功率密度达到24000 μW·cm^-2时，对应的能量密度为80 μWh·cm^-2.

关键词: 钴酸锌, 氟化铵, 面积比容量, 非对称超级电容器

Abstract: In this work, hydrothermal reaction and high temperature were used to grow ZnCo₂O₄ active materials on Ni foam. The crystal stuctures and surface morphlogies of four samples were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The electrochemical performances were characterized by cyclic voltammetry (CV)、galvanostatic charge/discharge (GCD) testing and electrochemical impedance spectroscopy (EIS) on an electrochemical station. It can be seen that active materials tended to form denser stuctures with an increasing amount of NH₄F in the solution system and four different morphologies of ZnCo₂O₄ were obtained: nanoneedles, thin nanoneedles-clusters, thick nanoneedles-clusters, and lozenge-like bulks.ZnCo₂O₄ with the thin nanoneedles-clusters morphology held the best electrochemaical performance with the capacitance of 2.77 F·cm^-2 at the current density of 5 mA·cm^-2. A button asymmetric supercapacitor (ZnCo₂O₄ -2/NF//AC/NF) assembled with ZnCo₂O₄ -2/NF and AC/NF exhibited the excellent performance in energy storage. The button asymmetric supercapacitors achieved an energy density of 114.49 μWh·cm^-2 at power density of 4001.59 μW·cm^-2 and a power density of 24000 μW·cm^-2 at energy density of 80 μWh·cm^-2.

Key words: zinc cobaltate, ammonium fluoride, areal capacitance, asymmetric supercapacitors

中图分类号:

O646
O644

周岳珅, 李梦, 吴双, 李照磊, 高延敏. ZnCo₂O₄电极材料的形貌调控制备与超级电容特性的研究[J]. 电化学（中英文）, 2019, 25(6): 740-748.

ZHOU Yue-shen, LI Meng, WU Shuang, LI Zhao-lei, GAO Yan-min. Morphology Controlled Preparations and Electrochemical Properties of ZnCo₂O₄ Electrode Materials for Supercapacitors[J]. Journal of Electrochemistry, 2019, 25(6): 740-748.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.180625

https://electrochem.xmu.edu.cn/CN/Y2019/V25/I6/740

参考文献

[1] Lukatskaya M R, Dunn B, Gogotsi Y. Multidimensional materials and device architectures for future hybrid energy storage[J]. Nature Communications, 2016, 7: 12647.
[2] Simon P ,GoGotSi Y. Materials for electrochemical capacitors[J]. Nature Materials, 2008, 7(11): 845-854.
[3] Wang F, Wu X, Yuan X, et al. Latest advances in supercapacitors: from new electrode materials to novel device designs[J]. Chemical Society Reviews, 2017, 46(22): 6816-6854.
[4] Palacín M.R, Simon P, Tarascon J.M. Nanomaterials for electrochemical energy storage: the Good and the bad[J]. Acta Chimica Slovenica, 2016, 63(3): 417-423.
[5] Shao W K(邵雯柯), Zhao L(赵雷), Wang Q F(王秋凡), et al. The study of asymmetric supercapacitor based on WO₃/carbon cloth[J]. Journal of Electrochemistry(电化学), 2018, 24(1): 1-11.
[6] Conway B.E, Birss V, Wojtowicz J. The role and utilization of pseudocapacitance for energy storage[J]. Journal of Power Sources,1997, 66: 1-14.
[7] Conway B E. Transition from “supercapacitor” to “battery” behavior in electrochemical energy storage[J]. Journal of The Electrochemical Society, 1991, 138(6): 1539-1548.
[8] Jiang C C, Cao Y K, Xiao G Y, et al. A review on the application of inorganic nanoparticles in chemical surface coatings on metallic substrates[J]. RSC Advances, 2017, 7(13): 7531-7539.
[9] Liu B, Liu B Y, Wang Q F, et al. New energy storage option: toward ZnCo₂O₄ nanorods/nickel foam architectures for high-performance supercapacitors[J]. ACS Applied Materials & Interfaces, 2013, 5(20): 10011-10017 .
[10] Yuvaraj S, Selvan R K, Lee Y S. An overview of AB₂O₄- and A₂BO₄-structured negative electrodes for advanced Li-ion batteries[J]. RSC Advances, 2016, 6(26): 21448-21474.
[11] Yao L L, Zhang L L, Liu Y X, et al. MnCo₂O₄ and CoMn₂O₄ octahedral nanocrystals synthesized via a one-step co-precipitation process and their catalytic properties in benzyl alcohol oxidation[J]. CrystEngComm, 2016, 18(46): 8887-8897.
[12] Wang H(万慧),Ying Z R(应宗荣), Liu X D(刘信东), et al. Preparation and electrochemical properties of attapulgite -supported nitrogen-doped carbon@NiCo₂O₄ composites for supercapacitors[J]. Journal of Electrochemistry(电化学), 2017, 23(1): 28-35.
[13] Liu S, Hui K S, Kim K H, et al. Vertically stacked bilayer CuCo₂O₄/MnCo₂O₄ heterostructures on functionalized graphite paper for high-performance electrochemical capacitors[J]. Journal of Materials Chemistry A, 2016, 4(21): 8061-8071.
[14] Okubo M, Hosono E, Kim J, et al. Nanosize effect on high-rate Li-ion intercalation in LiCoO₂ electrode[J]. Journal of the American Chemical Society, 2007, 129(23): 7444-7452.
[15] Gogotsi Y. What nano can do for energy storage[J]. ACS Nano, 2014, 8(6): 5369-5371.
[16] Zhang G Q, Lou X W. General solution growth of mesoporous NiCo₂O₄ nanosheets on various conductive substrates as high-performance electrodes for supercapacitors[J]. Advanced Materials, 2013, 25(7): 976-979.
[17] Yu Z Y, Cheng Z X, Tai Z X, et al. Tuning the morphology of CO₃O₄ on Ni foam for supercapacitor application[J]. RSC Advances, 2016, 6(51): 45783-45790.
[18] Li M G, Yang W W, Huang Y R, et al. Hierarchical mesoporous CO₃O₄@ZnCo₂O₄ hybrid nanowire arrays supported on Ni foam for high-performance asymmetric supercapacitors[J]. Science China - Materials, 2018, 61(9): 1167-1176.
[19] Gai Y S, Shang Y Y, Gong L Y, et al. A self-template synthesis of porous ZnCo₂O₄ microspheres for high-performance quasi-solid-state asymmetric supercapacitors[J]. RSC Advances, 2017, 7(2): 1038-1044.
[20] Chuo H X, Gao H, Bu W B, et al. Rationally designed hierarchical ZnCo₂O₄/Ni(OH)₂ nanostructures for high-performance pseudocapacitor electrodes[J]. Journal of Materials Chemistry A, 2014, 2(48): 20462-20469.
[21] Yang D W, Wang Y Q, Wang Q Y, et al. Preparation and supercapacitive properties of hierarchical ZnCo₂O₄@Ni₃S₂ core/shell nanowire arrays on Ni foam[J]. Materials Letters, 2018, 213: 222-226.
[22] Kang Q, Zhao J, Li X, et al. A single wire as all-inclusive fully functional supercapacitor[J]. Nano Energy, 2017, 32: 201-208.
[23] Deka Boruah B, Maji A, Misra A. Synergistic effect in the heterostructure of ZnCo₂O₄ and hydrogenated zinc oxide nanorods for high capacitive response[J]. Nanoscale, 2017, 9(27): 9411-9420.

Metrics

阅读次数

全文

1042

HTML			PDF

最新录用	在线预览	正式出版	最新录用	在线预览	正式出版
0	0	1	466	0	575

来源	本网站	其他网站

次数	832	210
比例	80%	20%

摘要

715

最新录用	在线预览	正式出版

253	0	462

来源	本网站	其他网站

次数	676	39
比例	95%	5%

ZnCo₂O₄电极材料的形貌调控制备与超级电容特性的研究

Morphology Controlled Preparations and Electrochemical Properties of ZnCo₂O₄ Electrode Materials for Supercapacitors

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

Metrics

[1]	邵雯柯，赵雷，刘超，董艳莹，朱元杰，王秋凡. WO₃/碳布柔性非对称超级电容器的组装及性能研究[J]. 电化学（中英文）, 2018, 24(4): 351-358.
[2]	申昆, 周贤良, 段祺舜. 二氧化锰含量对活性炭电极电化学性能的影响[J]. 电化学（中英文）, 2015, 21(6): 577-582.