Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T06:07:05.868Z Has data issue: false hasContentIssue false
  • English
  • Français

Electrochemical Behavior of the Ce4+ / Ce3+ Couple in the Novel Ce- V Redox Flow Cell

Published online by Cambridge University Press:  15 March 2011

Yang Liu  and
Xi Xia
Yang Liu
Affiliation:
Département de chimie, Université de Montréal, Montréal, QC, H3C 3J7, Canada
Xi Xia
Affiliation:
Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang, 830046, China
Get access

Abstract

A novel Ce4+/Ce3+- V2+/V3+ redox flow cell has been investigated. It was composed of the Ce4+/Ce3+ couple, which replaced the V5+/V4+ couple of the all6vanadium redox flow cell, and the V2+/V3+ couple. The normal potential and the kinetic parameters for anodic oxidation of Ce3+ and cathodic reduction of Ce4+ were measured. The results showed that the surface of platinum electrode was fully covered with type I oxide that inhibited the reduction of Ce4+. The reversibility of the Ce4+/Ce3+ couple improved with the increase of H2SO4 concentration, but both higher energy efficiency and coulombic efficiency were observed in 0.5 mol/dm3 H2SO4 solution. Different electrochemically active substances were found to exist at various state of charge (SOC) and the reversibility of the Ce4+/Ce3+ couple at the carbon electrode was found to be superior to platinum electrode. Periodic charge6discharge measurements were conducted under constant current and constant load with the proposed Ce6V redox flow cell. The results indicated that the coulombic efficiency remained around 90% and the discharge voltage stabilized between 1.5 and 1.2 V. But as the cycle numbers increased, the discharge capacity declined a bit and a better result might be expected by improving the separator materials and increase the concentration of electro6active materials. By comparison with the existing Fe6Cr, Fe6Ti and all6vanadium redox flow cell, the Ce6V system has a higher open6circuit voltage (OCV). And results from this preliminary study suggest that the novel Ce6V redox flow cell is a promising energy storage system and is worthy of further studies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1127: Symposium T – Mobile Energy , 2008 , 1127-T01-03
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.http://en.wikipedia.org/wiki/Vanadium_Redox_Flow_BatteryGoogle Scholar
2. Bartolozzi, M., J. Power Sources, 27, 219 (1989).Google Scholar
3. Bard, A. J., Encyclopedia of electrochemistry of the elements, Vol. VI.Google Scholar
4. Sherrill, M. S., King, C. B., Spooner, R. C., J. Am. Chem. Soc. 65, 170 (1943).Google Scholar
5. Martin, T. W., Glass, R. W., J. Am. Chem. Soc. 92, 5075 (1970).Google Scholar
6. Mils, A., Worsley, D., J. Chem. Soc. Faraday trans. 87, 3275 (1991).Google Scholar
7. Kunz, A. H., J. Am. Chem. Soc. 53, 98 (1931).Google Scholar
8. Xia, X., Liu, H., Liu, Y., J. Electrochem. Soc, A426, 149 (2002).Google Scholar
9. Liu, Y., Xia, X., Liu, H., J. Power Sources 130, 299 (2004).Google Scholar
10. Wei, Y., Fang, B., Arai, T., Kumagai, M., J. Appl. Electrochem. 35, 561 (2005).Google Scholar
11. Randle, T. H., Kuhn, A.T., J. Chem. Soc., Faraday Trans. I 79, 1741 (1983).Google Scholar
12. Xia, X., Liu, H., Liu, Y., Acta Chim. Sin. 59, 2063 (2001).Google Scholar
13. Skyllas-Kazacos, M., Robins, R. G., U.S. Pat. 4,849,094 (1986).Google Scholar
14. Sum, E., Skyllas-Kazacos, M., J. Power Sources, 15, 179 (1985).Google Scholar
15. Liu, Y., Liu, H., Xia, X., Chinese Journal of Electrochemistry, 8, 40 (2002).Google Scholar
16. Liu, Y., Liu, H., Xia, X., Chinese Journal of Applied Chemistry 18, 987 (2001).Google Scholar
17. Raju, T., Basha, C. Ahmed, Ind. Eng. Chem. Res. 47, 8947 (2008).Google Scholar
18. Clarke, R. L., Harrison, S., Dougherty, B. J., Mohanta, S., Millington, J. P., Electrical energy storage applications and technologies conferences (EEAST 2002) http://plurionsystems.com/docs/esatplurionpublication.pdf, 12.12.2003 Google Scholar
19. Spotnitz, R. M., Kreh, R. P., Lundquist, J. T., Press, P. J., J. Appl. Electrochem. 20, 209 (1990).Google Scholar
20. Paulenova, A., Creager, S. E., Navratil, J. D., Wei, Y., Journal of Power Sources 109, 431 (2002).Google Scholar
21. Xia, X., Liu, H., Liu, Y., Acta Chim. Sin. 60, 1630 (2002).Google Scholar