Adv. Search
Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 3: 583 - 586

DOI: https://doi.org/10.3724/SP.J.1077.2008.00583

Research Paper

Effects of Ni2+ Doping on Structure and Electrochemical Performance of V2O5

  • WANG Hong ,
  • TANG Zhi-Yuan ,
  • LI Zhong-Yan
Expand
  • 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. McNair Technology Co., Ltd., Dongguan 523700, China

Received date: 2007-07-11

  Revised date: 2007-10-22

  Online published: 2008-05-20

Fold

Abstract

Ni 2+ -doped V 2 O 5 cathode materials were synthesized by liquid deposition process with NiSO4·6H2O as dopant. The effects of Ni 2+ on the physical and chemical properties of the target compounds were investigated. The material structure, microphology and grain sizes were characterized by XRD and SEM. Galvanostatic method and AC impedance were used to measure the electrochemical performance of the material. The results show that the Ni 2+ doping affects the product structure slightly, and it is helpful to reduce the impedance of charge transfer in V2O5. With the increase of doping content, the capacitor specific energy increases. With the 2.5% Ni 2+ doping content, the highest specific energy of the capacitor is up to 15.6Wh·kg-1 and coulomb efficiency is 95.12%.

Cite this article

WANG Hong , TANG Zhi-Yuan , LI Zhong-Yan . Effects of Ni2+ Doping on Structure and Electrochemical Performance of V2O5[J]. Journal of Inorganic Materials, 2008 , 23(3) : 583 -586 . DOI: 10.3724/SP.J.1077.2008.00583

References

[1] Conway B E. Journal of Electroanalytical Chemistry, 2002, 524-525: 4--19.
[2] Kudo T, Ikeda Y, Watanabe T, et al. Solid State Ionics, 2002, 152-153: 833--841.
[3] Jurewicz K, Vix- Guterl C, Frackowiak E, et al. Journal of Physics and Chemistry of Solids, 2004, 65 (2-3): 287--293.
[4] Lota K, Khomenko V, Frackowiak E. Journal of Physics and Chemistry of Solids, 2004, 65 (2-3): 295--301.
[5] Wang Gui-Xin, Zhang Bo-Lan, Yu Zuo-Long, et al. Solid State Ionics, 2005, 176 (11-12): 1169--1174.
[6] Portet C, Taberna P L, Simon P, et al. Electrochimica Acta, 2004, 49 (6): 905--912.
[7] Khomenko V, Raymundo-Pinero E, Beguin F. Journal of Power Sources, 2006, 153 (1): 183--190.
[8] Leitner K W, Gollas B, Winter M, et al. Electrochimica Acta, 2004, 50 (1): 199--204.
[9] Portet C, Taberna P L, Simon P. Journal of Power Sources, 2005, 139 (1-2): 371--378.
[10] Popall M, Andrei M, Kappel J, et al. Electrochimica Acta, 1998, 43 (10-11): 1155--1161.
[11] Bispo-Fonseca I, Aggar J, Sarrazin C. Journal of Power Sources, 1999, 79: 238--241.
[12] Ricketts B W, Ton-That C. Journal of Power Sources, 2000, 89 (1): 64--69.
[13] Conway B E. 电化学超级电容器---科学原理及技术应用, 第一版. 北京: 化学工业出版社, 2005. 17--23.
Options
Outlines

/

〈 〉