Journal of Applied Electrochemistry

, Volume 33, Issue 10, pp 929–932

Accelerated degradation testing of gas diffusion electrodes for the chlor-alkali process

Authors

  • M. Sugiyama
    • The Association for the Progress of New Chemistry
  • K. Saiki
    • The Association for the Progress of New Chemistry
  • A. Sakata
    • The Association for the Progress of New Chemistry
  • H. Aikawa
    • The Association for the Progress of New Chemistry
  • N. Furuya
    • Yamanashi University
Article

DOI: 10.1023/A:1025899204203

Cite this article as:
Sugiyama, M., Saiki, K., Sakata, A. et al. Journal of Applied Electrochemistry (2003) 33: 929. doi:10.1023/A:1025899204203

Abstract

The chlor-alkali industry consumes large amounts of energy. The gas diffusion cathode has been investigated for energy saving modifications. To commercialize the process, an electrode of high durability is required. Electrolytic operating factors causing electrode deterioration were examined. Under the condition of low oxygen concentration operation, the degradation of the electrode was significantly accelerated. The life of the electrode was also estimated by an acceleration test. The relationship between the logarithm of the life and the operating overvoltage was linear. Using this relation, the life of a possible mass production electrode was assumed to be five years or more.

chlorine-alkali electrolysiselectrode degradationgas diffusion electrodelife estimation

Copyright information

© Kluwer Academic Publishers 2003