Asymmetric Hybrid Capacitor Based on NiCo<sub>2</sub>O<sub>4</sub> Nanosheets Electrode

Citation: Tong Yongli, Dai Meizhen, Xing Lei, Liu Hengqi, Sun Wanting, Wu Xiang. Asymmetric Hybrid Capacitor Based on NiCo₂O₄ Nanosheets Electrode[J]. Acta Physico-Chimica Sinica, 2020, 36(7): 1903046-0. doi: 10.3866/PKU.WHXB201903046 shu

基于NiCo₂O₄纳米片电极的非对称混合电容器

.
沈阳工业大学材料科学与工程学院，沈阳 110870

通讯作者: 武祥, wuxiang05@163.com

基金项目:
广东省显示材料与技术重点实验室开放课题(2017B030314031)资助项目

广东省显示材料与技术重点实验室开放课题 2017B030314031

摘要: 在这项工作中，我们采用简单的水热方法在泡沫镍基底上生长了钴酸镍纳米片。结果表明，合成的NiCo₂O₄纳米片直接用作超级电容器电极，呈现出优异的电化学性能。在电流密度为1 mA·cm^-2时，其面积比电容达到1.26 C·cm^-2；经过10000次充放电循环后，其比电容仍能保持初始容量的97.6%。以NiCo₂O₄纳米片为正极，活性炭为负极组装的超级电容器在功率密度为1.56和4.5 W∙cm^-3时，其能量密度分别达到0.14和0.09 Wh∙cm^-3。经过10000次循环后，器件仍能保持初始比电容的95%。以上结果证明合成的钴酸镍纳米片电极在未来的储能器件中具有良好的电化学应用前景。

关键词:

English

Asymmetric Hybrid Capacitor Based on NiCo₂O₄ Nanosheets Electrode

School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, P. R. China

Corresponding author: Wu Xiang, wuxiang05@163.com

Received Date: 19 March 2019
Accepted Date: 19 April 2019
Revised Date: 18 April 2019
Available Online: 15 July 2020
Fund Project:
The project was supported by the Research Project of Guangdong Province Key Laboratory of Display Material and Technology, China (2017B030314031)

the Research Project of Guangdong Province Key Laboratory of Display Material and Technology, China 2017B030314031

Abstract: The looming global energy crisis and ever-increasing energy demands have catalyzed the development of renewable energy storage systems. In this regard, supercapacitors (SCs) have attracted widespread attention because of their advantageous attributes such as high power density, excellent cycle stability, and environmental friendliness. However, SCs exhibit low energy density and it is important to optimize electrode materials to improve the overall performance of these devices. Among the various electrode materials available, spinel nickel cobaltate (NiCo₂O₄) is particularly interesting because of its excellent theoretical capacitance. Based on the understanding that the performances of the electrode materials strongly depend on their morphologies and structures, in this study, we successfully synthesized NiCo₂O₄ nanosheets on Ni foam via a simple hydrothermal route followed by calcination. The structures and morphologies of the as-synthesized products were characterized by X-ray diffraction, scanning electron microscopy, and Brunauer-Emmett-Teller (BET) surface area analysis, and the results showed that they were uniformly distributed on the Ni foam support. The surface chemical states of the elements in the samples were identified by X-ray photoelectron spectroscopy. The as-synthesized NiCo₂O₄ products were then tested as cathode materials for supercapacitors in a traditional three-electrode system. The electrochemical performances of the NiCo₂O₄ electrode materials were studied and the area capacitance was found to be 1.26 C∙cm^-2 at a current density of 1 mA∙cm^-2. Furthermore, outstanding cycling stability with 97.6% retention of the initial discharge capacitance after 10000 cycles and excellent rate performance (67.5% capacitance retention with the current density from 1 to 14 mA∙cm^-2) were achieved. It was found that the Ni foam supporting the NiCo₂O₄ nanosheets increased the conductivity of the electrode materials. However, it is worth noting that the contribution of nickel foam to the areal capacitance of the electrode materials was almost zero during the charge and discharge processes. To further investigate the practical application of the as-synthesized NiCo₂O₄ nanosheets-based electrode, a device was assembled with the as-prepared samples as the positive electrode and active carbon (AC) as the negative electrode. The assembled supercapacitor showed energy densities of 0.14 and 0.09 Wh∙cm^-3 at 1.56 and 4.5 W∙cm^-3, respectively. Furthermore, it was able to maintain 95% of its initial specific capacitance after 10000 cycles. The excellent electrochemical performance of the NiCo₂O₄ nanosheets could be ascribed to their unique spatial structure composed of interconnected ultrathin nanosheets, which facilitated electron transportation and ion penetration, suggesting their potential applications as electrode materials for high performance supercapacitors. The present synthetic route can be extended to other ternary transition metal oxides/sulfides for future energy storage devices and systems.

Key words:

1. [1]
  Zeng, Y. X.; Lai, Z. Z.; Han, Y.; Zhang H. Z.; Xie, S. L.; Lu X. H. Adv. Mater. 2018, 33, 1802396. doi: 10.1002/adma.201802396 doi: 10.1002/adma.201802396
2. [2]
  赵明宇, 朱琳, 付博文, 江素华, 周永宁, 宋云.物理化学学报, 2019, 35, 193. doi: 10.3866/PKU.WHXB201801241Zhao, M. Y.; Zhu, L.; Fu, B. W.; Jiang, S. H.; Zhou, Y. N.; Song, Y. Acta Phys. -Chim. Sin. 2019, 35, 193. doi: 10.3866/PKU.WHXB201801241
3. [3]
  Martek, I.; Hosseini, M. R.; Shrestha, A.; Edwards, D. J.; Durdyev, S. J. Cleaner Prod. 2019, 11, 281. doi: 10.1016/j.jclepro.2018.11.166 doi: 10.1016/j.jclepro.2018.11.166
4. [4]
  Gao, S. N.; Liao, F.; Ma, S. Z.; Zhu, L. L.; Shao, M. W. J. Mater. Chem. A 2015, 3, 16520. doi: 10.1039/C5TA02876K doi: 10.1039/C5TA02876K
5. [5]
  刘双, 邵涟漪, 张雪静, 陶占良, 陈军.物理化学学报, 2018, 34, 581. doi: 10.3866/PKU.WHXB201711222Liu, S; Shao, L. Y.; Zhang, X. J.; Tao, Z. L.; Chen, J. Acta Phys. -Chim. Sin. 2018, 34, 581. doi: 10.3866/PKU.WHXB201711222
6. [6]
  Zhang, H. Z.; Zhang, X. Y.; Li, H. D.; Zhang, Y. F.; Zeng, Y. X.; Tong, Y. X.; Zhang, P.; Lu, X. H. Green Energy Environ. 2018, 3, 56. doi: 10.1016/j.gee.2017.09.003 doi: 10.1016/j.gee.2017.09.003
7. [7]
  Liu, C.; Jiang, W.; Hu, F.; Wu, X.; Xue, D. F. Inorg. Chem. Front. 2018, 5, 835. doi: 10.1039/C8QI00010G doi: 10.1039/C8QI00010G
8. [8]
  Wu, X.; Han, Z. C.; Zheng, X. Yao, S. Y.; Yang, X.; Zhai, T. Y. Nano Energy 2017, 31, 410. doi:10.1016/j.nanoen.2016.11.035 doi: 10.1016/j.nanoen.2016.11.035
9. [9]
  Wang, F. X.; Wu, X. W.; Yuan, X. H.; Liu, Z. C.; Zhang, Y; Fu, L. J.; Zhu, Y. S.; Zhou, Q. M.; Wu, Y. P.; Huang, W. Chem. Soc. Rev. 2017, 46, 6816. doi: 10.1039/c7cs00205j doi: 10.1039/c7cs00205j
10. [10]
  王海燕, 石高全.物理化学学报, 2018, 34, 22. doi: 10.3866/PKU.WHXB201706302Wang, H. Y.; Shi, G. Q. Acta Phys. -Chim. Sin. 2018, 34, 22. doi: 10.3866/PKU.WHXB201706302
11. [11]
  Wu, X.; Yao, S. Y. Nano Energy 2017, 42, 143. doi: 10.1016/j.nanoen.2017.10.058 doi: 10.1016/j.nanoen.2017.10.058
12. [12]
  Li, G. M.; Chen, M. Z.; Yu, O. Y.; Yao, D.; Lu, L.; Wang, L.; Xia, X. F.; Wu, L.; Chen, S. M.; Daniel, M.; et al. Appl. Surf. Sci. 2019, 469, 941. doi: 10.1016/j.apsusc.2018.11.099 doi: 10.1016/j.apsusc.2018.11.099
13. [13]
  Guo, D.; Zhang, P.; Zhang H.; Yu, X.; Zhu, J.; Li, Q.; Wang, T. J. Mater. Chem. A 2013, 1, 9024. doi:10.1039/C3TA11487B doi: 10.1039/C3TA11487B
14. [14]
  You, B.; Liu, X.; Hu, G. X.; Gul, S.; Yano, J.; Jiang, D. E.; Sun, Y. J. J. Am. Chem. Soc. 2017, 139, 12283. doi: 10.1021/jacs.7b06434 doi: 10.1021/jacs.7b06434
15. [15]
  Huang, Y. L.; Zeng, Y. X.; Yu, M. H.; Liu, P.; Tong, Y. X.; Cheng, F. L.; Lu, X. H. Small Methods 2018, 2, 1700230. doi: 10.1002/smtd.201700230 doi: 10.1002/smtd.201700230
16. [16]
  Zhao, D. P.; Wu, X. Mater. Lett. 2018, 210, 354. doi: 10.1016/j.matlet.2017.09.068 doi: 10.1016/j.matlet.2017.09.068
17. [17]
  Xing, L.; Dong, Y. D. Hu, F. Wu, X.; Umar, A. Dalton Trans. 2018, 47, 5687 doi: 10.1039/C8DT00750K doi: 10.1039/C8DT00750K
18. [18]
  Yao, S. Y.; Qu, F. Y.; Wang, G.; Wu, X. J. Alloys Compd. 2017, 724, 695. doi: 10.1016/j.jallcom.2017.07.123 doi: 10.1016/j.jallcom.2017.07.123
19. [19]
  Liu, C.; Wu, X. Mater. Res. Bull. 2018, 103, 55 doi:10.1016/j.materresbull.2018.03.014 doi: 10.1016/j.materresbull.2018.03.014
20. [20]
  Zheng, X.; Han, Z. C.; Yao, S. Y.; Xiao, H. H.; Chai, F.; Qu, F. Y.; Wu, X. Dalton Trans. 2016, 45, 7094 doi:10.1039/C6DT00002A doi: 10.1039/C6DT00002A
21. [21]
  Sun, W. T.; Xiao, L.; Wu, X. J. Alloys Compd. 2019, 772, 465. doi: 10.1016/j.jallcom.2018.09.185 doi: 10.1016/j.jallcom.2018.09.185
22. [22]
  Ren, Q.; Wang, R. F.; Wang, H.; Key, J. L.; Brett, D. J. L.; Ji, S.; Yin, S. B.; Shen, P. K. J. Mater. Chem. A 2016, 4, 7591. doi: 10.1039/C6TA02596J doi: 10.1039/C6TA02596J
23. [23]
  Pang, H.; Li, X. R.; Zhao, Q. X.; Xue H. G.; Lai. W. Y.; Hu, Z.; Huang, W. Nano Energy 2017, 35, 138. doi: 10.1016/j.nanoen.2017.02.044 doi: 10.1016/j.nanoen.2017.02.044
24. [24]
  Kong, D. Z.; Luo, J. S.; Wang, Y. L.; Ren, W. N.; Yu, T.; Luo, Y. S.; Yang, Y. P.; Cheng, C. W. Adv. Funct. Mater. 2014, 24, 3815. doi: 10.1002/adfm.201304206 doi: 10.1002/adfm.201304206
25. [25]
  Yu, F.; Chang, Z.; Yuan, X. H.; Wang, F. X.; Zhu Y. S.; Fu, L. J.; Chen, Y. H.; Wang, H. X.; Wu, Y. P.; Li, W. S. J. Mater. Chem. A 2018, 6, 5856. doi: 10.1039/C8TA00835C doi: 10.1039/C8TA00835C
26. [26]
  Zhao, D. P.; Liu, H. Q.; Wu, X. Nano Energy 2019, 57, 363. doi: 10.1016/j.nanoen.2018.12.066 doi: 10.1016/j.nanoen.2018.12.066
27. [27]
  Xing, L.; Dong, Y. D.; Wu, X. RSC Adv. 2018, 8, 28172. doi: 10.1039/C8RA05722B doi: 10.1039/C8RA05722B
28. [28]
  Zhao, D. P.; Hu, F.; Umar, A. Wu, X. New J. Chem. 2018, 42, 7399. doi: 10.1039/C8NJ00935J doi: 10.1039/C8NJ00935J
29. [29]
  Wang, Y.; Guo, J.; Wang, T. F; Shao. J. F.; Wang D.; Yang, Y. W. Nanomaterials 2015, 5, 1667. doi: 10.3390/nano5041667 doi: 10.3390/nano5041667
30. [30]
  Yan, J.; Wang, Q.; Wei T.; Fan, Z. J. Adv. Energy Mater. 2014, 4, 1300816. doi: 10.1002/aenm.201300816 doi: 10.1002/aenm.201300816
31. [31]
  Zhao, D. P.; Wu, X.; Guo, C. F. Inorg. Chem. Front. 2018, 5, 1378. doi: 10.1039/C8QI00170G doi: 10.1039/C8QI00170G
32. [32]
  Jiang, W.; Hu, F.; Yao, S. Y.; Sun, Z. P.; Wu, X. Mater. Res. Bull. 2017, 93, 303. doi: 10.1016/j.materresbull.2017.05.036 doi: 10.1016/j.materresbull.2017.05.036
33. [33]
  Park, C. Y.; Hwang, J.; Hwang, Y. T.; Song C. H.; Ahn, S.; Kim, H. S.; Ahn, H. J. Electrochim. Acta 2017, 246, 757. doi: 10.1016/j.electacta.2017.06.087 doi: 10.1016/j.electacta.2017.06.087
34. [34]
  El-Kady, M. F.; Strong, V.; Dubin, S.; Kaner, R. B. Science 2012, 335, 1326. doi: 10.1126/science.1216744 doi: 10.1126/science.1216744
35. [35]
  Jiang, W.; Hu, F.; Yan, Q. Y.; Wu, X. Inorg. Chem. Front. 2017, 4, 1642. doi: 10.1039/C7QI00391A doi: 10.1039/C7QI00391A
36. [36]
  Yuan, L. Y.; Lu, X. H.; Xiao, X.; Zhai, T.; Dai, J. J.; Zhang, F. C.; Hu, B.; Wang, X.; Gong, L.; Chen, J.; et al. ACS Nano 2012, 6, 656. doi: 10.1021/nn2041279 doi: 10.1021/nn2041279

扫一扫看文章

计量

PDF下载量: 2
文章访问数: 17
HTML全文浏览量: 2

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

基于NiCo2O4纳米片电极的非对称混合电容器

通讯作者: 武祥, wuxiang05@163.com

English

Asymmetric Hybrid Capacitor Based on NiCo2O4 Nanosheets Electrode

Corresponding author: Wu Xiang, wuxiang05@163.com

计量

文章相关

通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于NiCo₂O₄纳米片电极的非对称混合电容器

Asymmetric Hybrid Capacitor Based on NiCo₂O₄ Nanosheets Electrode