SIOC English
化学学报
高级检索

化学学报 >

2012 , Vol. 70 >Issue 04: 372 - 376

DOI: https://doi.org/10.6023/A1110012

研究论文

泡沫镍载Co(OH)2 纳米线的电化学电容性能

  • 徐暘 ,
  • 刘新伟 ,
  • 翟婧如 ,
  • 陈书礼 ,
  • 曹殿学 ,
  • 王贵领
展开
  • a 哈尔滨工程大学材料科学与化学工程学院 哈尔滨 150001;
    b 黑龙江中医药大学药学院 哈尔滨 150040

收稿日期: 2011-10-09

  修回日期: 2011-11-03

  网络出版日期: 2011-11-09

基金资助

国家自然科学基金(No. 20973048)资助项目.

收起

Electrochemical Capacitance of Ni Foam Supported Co(OH)2 Nanowires

  • Xu Yang ,
  • Liu Xinwei ,
  • Zhai Jingru ,
  • Chen Shuli ,
  • Cao Dianxue ,
  • Wang Guiling
Expand
  • a College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001;
    b College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040

Received date: 2011-10-09

  Revised date: 2011-11-03

  Online published: 2011-11-09

Supported by

Project was supported by the National Natural Science Foundation of China (No. 20973048).

Fold

摘要

以无模板法制备了泡沫镍载Co(OH)2 纳米线电极, 利用扫描电镜(SEM)和透射电镜(TEM)观测了纳米线的表面形貌, 利用X 射线衍射(XRD)分析了Co(OH)2 纳米线的结构, 通过循环伏安、恒流充放电和交流阻抗测试了电极的电化学电容性能. 结果表明: Co(OH)2 呈线状生长, 其直径约为300 nm, 长度约为8～10 μm, 密集地生长在泡沫镍骨架上. 电流密度为10 mA·cm-2 时电极的放电比容量高达677 F·g-1, 循环500 次后比容量仍保持在574 F·g-1, 电化学阻抗测试其电荷传递电阻仅为0.23 Ω, 500 次循环后电荷传递电阻仅增加0.03 Ω.

关键词： 无模板法; Co(OH)2 纳米线; 泡沫镍; 形貌; 电化学电容器

本文引用格式

徐暘 , 刘新伟 , 翟婧如 , 陈书礼 , 曹殿学 , 王贵领 . 泡沫镍载Co(OH)2 纳米线的电化学电容性能[J]. 化学学报, 2012 , 70(04) : 372 -376 . DOI: 10.6023/A1110012

Abstract

The electrode of Co(OH)2 nanowires freely standing on nickel foam was prepared via template- free growth method. Its morphology was examined by scanning electron microscopy (SEM) and transmission electron microscope (TEM), the phase structure of Co(OH)2 was analyzed by X-ray diffraction spectroscopy (XRD), and the electrochemical capacitance of the electrode was investigated by cyclic voltammetry, galvanostatic charge-discharge test and electrochemical impedance spectroscopy. The results show that Co(OH)2 nanowires grow on and densely cover the nickel foam substrate. The Co(OH)2 nanowires have diameters around 300 nm and lengths up to around 8～10 μm. The Co(OH)2 nanowires display a specific capacitance of 677 F·g-1 and remain to be 574 F·g-1 after 500 charge-discharge cycles. Electrochemical impedance spectroscopy measurement shows that the charge transfer resistance is only 0.23 Ω and increased only by 0.03 Ω after 500 cycles.

Key words： template-free growth method; Co(OH)2 nanowire; nickel foam; morphology; electrochemical capacitor

参考文献

1 Burke, A. J. Power Sources 2000, 91, 37.  

2 Kotz, R.; Carlen, M. Electrochim. Acta 2000, 45, 2483.  

3 Wang, G. L.; Zhang, W. C.; Cao, D. X.; Liu, J. C.; Wang, X. Y.; Zhang, S.; Sun, K. N. Chin. J. Chem. 2009, 27, 2166.

4 Wang, G.-L.; Zhao, H.; Huo, L.-H.; Gao, S. Acta Chim. Sinica 2008, 66, 1411 (in Chinese). (王贵领, 赵辉, 霍丽华, 高山, 化学学报, 2008, 66, 1411.)

5 Yu, Z. H.; Donald, Z.; Anima, B. J. Power Sources 2011, 196, 2351.  

6 Burke, A. Electrochim. Acta 2007, 53, 1083.  

7 Zhang, Y.; Feng, H.; Wu, X. Int. J. Hydrogen Energy 2009, 34, 4889.  

8 Simon, P.; Gogotsi, Y. Nat. Mater. 2008, 7, 845.  

9 Yang, M. M.; Cheng, B.; Song, H. H.; Chen, X. H. Electrochim. Acta 2010, 55, 702.

10 Sharma, R. K.; Rastogi, A. C. Electrochem. Commun. 2008, 10, 268.  

11 Hu, Z. A.; Mo, L. P.; Feng, X. J.; Shi, J.; W, Y. X.; Xie, Y. L. Mater. Chem. Phys. 2009, 114, 53.  

12 Yuan, C. Z.; Gao, B.; Su, L.; Zhang, X. G. J. Colloid Interface Sci. 2008, 322, 545.  

13 Ren, Y.; Gao, L. J. Am. Ceram. Soc. 2010, 93, 3560.  

14 Chen, Z.-D.; Gao, L.; Cao, J.-Y.; Wang, W.-C.; Xu, J. Acta Chim. Sinica 2011, 69, 503 (in Chinese). (陈智栋, 高兰, 曹剑瑜, 王文昌, 许娟, 化学学报, 2011, 69, 503.)

15 Su, Y.-F.; Wu, F.; Bao, L.-Y.; Xu, B.; Chen, S. Acta Chim. Sinica 2008, 66, 591 (in Chinese). (苏岳锋, 吴锋, 包丽颖, 徐斌, 陈实, 化学学报, 2008, 66, 591.)

16 Xing, W.; Li, L.; Yan, Z.-F.; Lu, G.-Q. Acta Chim. Sinica 2005, 63, 1775 (in Chinese). (邢伟, 李丽, 阎子峰, Lu, Gao-Qing, 化学学报, 2005, 63, 1775.)

17 Jia, W.; Xu, M.-W.; Lei, C.; Bao, S.-J.; Jia, D.-Z. Acta Chim. Sinica 2011, 69, 1773 (in Chinese). (贾巍, 徐茂文, 雷超, 包淑娟, 贾殿赠, 化学学报, 2011, 69, 1773.)

18 Wen, Z.-B.; Liu, Y.-F.; Hu, Z.-H.; Wu, Y.-P.; Liu, A.-F.; Wang, C.-C.; Xu, X. Acta Chim. Sinica 2010, 68, 1473 (in Chinese). (温祖标, 刘亚菲, 胡中华, 吴宇平, 刘爱芳, 王晨晨, 徐 鑫, 化学学报, 2010, 68, 1473.)

19 Lei, T.; Tian, Y. M.; Wang, G. L.; Yin, J. L.; Gao, Y. Y.; Wen, Q.; Cao, D. X. Fuel Cells 2011, 11, 431.  

20 Wang, G. L.; Huang, J. C.; Chen, S. L.; Gao, Y. Y.; Cao, D. X. J. Power Sources 2011, 196, 5756.  

21 Gao, Y. Y.; Chen, S. L.; Cao, D. X.; Wang, G. L.; Yin, J. L. J. Power Sources 2010, 195, 1757.  

22 Wang, G. L.; Cao, D. X.; Yin, C. L.; Gao, Y. Y.; Yin, J. L.; Cheng, L. Chem. Mater. 2009, 21, 5112.  

23 Wang, Y.; Cao, D. X.; Wang, G. L.; Wang, S. S.; Wen, J. Y.; Yin, J. L. Electrochim. Acta 2011, 56, 8285.  

24 Yuan, C. Z.; Hou, L. R.; Shen, L. F.; Li, D. K.; Zhang, F.; Fan, C. G.; Li, J. M.; Zhang, X. G. Electrochim. Acta 2010, 56, 115.  
Options
文章导航

/

〈 〉