Skip to main content
SpringerLink
Log in

On the electrochemical behaviour of the anodic oxide film on tungsten in HCOOH and CH3COOH solutions

  • Papers
  • Published:
Journal of Applied Electrochemistry Aims and scope Submit manuscript

Abstract

The electrochemical behaviour of the anodic oxide film on tungsten during, or after, interruption of current flow was studied in HCOOH and CH3COOH solutions by galvanostatic and capacitance techniques. The results show the conditions under which enhancement of film growth occurs as revealed from its formation and dissolution characteristics. The results also show the possibility of the electrochemical oxidation of formic acid by the thick oxide film on tungsten. The importance of this electrocatalytic process is the occurrence of the oxidation process without appreciable oxygen evolution. The galvanostatic oxidation of tungsten in HCOOH as a reducing agent can be considered as a novel method for the preparation of a class of oxides; oxidation with simultaneous partial reduction.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. K. E. Heusler,Electrochim. Acta 28 (1983) 439.

    Google Scholar 

  2. T. C. Arnoldussen,J. Electrochem. Soc. 128 (1981) 117.

    Google Scholar 

  3. M. S. El-Basiouny, A. A. Hassan and M. M. Hefny,Corros. Sci. 20 (1980) 909.

    Google Scholar 

  4. M. M. Hefny, A. S. Mogoda and M. S. El-Basiouny,Corrosion 39 (1983) 266.

    Google Scholar 

  5. M. M. Hefny, A. G. Gad Allah and A. S. Mogoda,Ann. Chim. 77 (1987) 951

    Google Scholar 

  6. M. G. Segal and W. J. Williams,J. Chem. Soc. Faraday Trans. 1 82 (1986) 3245.

    Google Scholar 

  7. R. M. Sellers and W. J. Williams,Faraday Discuss. Chem. Soc. 77 (1986) 265.

    Google Scholar 

  8. R. A. White, J. O. M. Bockris and B. E. Conway (editors), ‘Modern Aspects of Electrochemmistry’ Plenum Press, London (1986) Vol. 18, p. 169.

    Google Scholar 

  9. L. D. Burke and D. P. Whelan,J. Electroanal. Chem. 135 (1982) 55.

    Google Scholar 

  10. P. Schlotter and L. Pickelmann,J. Electron. Matter. 11 (1982) 207.

    Google Scholar 

  11. M. S. El-Basiouny, A. M. El-Kot and M. M. Hefny,Br. Corros. J. 14 (1979) 51.

    Google Scholar 

  12. H. A. Johnson, T. Smith and G. R. Hill,Trans. Faraday Soc. 57 (1961) 2999.

    Google Scholar 

  13. M. M. Hefny, A. S. Mogoda and M. S. El-Basiouny,Br. Corros. J. 21 (1986) 109.

    Google Scholar 

  14. Th. Heumann and M. Stolica,Electrochim. Acta 16 (1971) 643.

    Google Scholar 

  15. J. T. Meyer,J. Electrochem. Soc. 131 (1984) 221C.

    Google Scholar 

  16. B. Reichmann and A. J. Bard,126 (1979) 583.

    Google Scholar 

  17. O. Bohnk, C. Bohnke, G. Robert and B. Carquille,Solid State Ionics 6 (1982) 121, 267.

    Google Scholar 

  18. A. Aladjem, D. G. Brandon and J. J. Yahalom,Electrochim. Acta 15 (1970) 663.

    Google Scholar 

  19. A. Di Paola, F. Di Quarto and C. Sunseri,Corros. Sci. 20 (1980) 1067, 1079.

    Google Scholar 

  20. J. W. Diggle, T. C. Dowine and C. W. Goulding,Electrochim. Acta 15 (1970) 1079.

    Google Scholar 

  21. L. D. Burke and M. B. C. Roche,J. Electroanal. Chem. 164 (1984) 315.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Cairo University, Giza

    M. M. Hefny & A. S. Mogoda

  2. Cairo University at Beni Suef, Egypt

    G. A. El Mahdy

Authors
  1. M. M. Hefny
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. S. Mogoda
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. A. El Mahdy
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hefny, M.M., Mogoda, A.S. & El Mahdy, G.A. On the electrochemical behaviour of the anodic oxide film on tungsten in HCOOH and CH3COOH solutions. J Appl Electrochem 18, 849–852 (1988). https://doi.org/10.1007/BF01016040

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01016040

Keywords

Search

Navigation