Journal of Materials Science

, Volume 29, Issue 4, pp 939–942 | Cite as

Morphology of (Ru-Ti-Sn) mixed-oxide coatings

  • S. Pushpavanam
  • K. C. Narasimham


Noble-metal-oxide-based coatings have successfully replaced many of the conventional anode materials in industrial electrochemical processes. The performance characteristics of these mixed-oxide electrodes have been found to be improved by the inclusion of non-noble-metal-oxide components. Of these, the addition of SnO2 to RuO2-TiO2 has attracted much attention. In the present paper, the morphology change imparted by gradual replacement of TiO2 by SnO2 from the RuO2-TiO2 (30/70) coatings is reported. Scanning electron microscopic examination and porosity determination reveal that significant modifications take place in the surface structure, and the surface layer tends to become compact at SnO2 concentration above 30 mol % SnO2.


TiO2 Porosity Surface Layer Morphology Change SnO2 
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  1. 1.
    V. De Nora, Extd. Abst. Electrochemical Society Meeting, Vol. 78-1 (1978) Abstract Number 458.Google Scholar
  2. 2.
    A. Nidola, in “Electrodes of Conductive Metallic Oxides”, Part B edited by S. Trasatti (Elsevier, Amsterdam, 1980) p. 627.Google Scholar
  3. 3.
    K. J. O'Leary, US Patent 3 776 834 (1973).Google Scholar
  4. 4.
    A. Bandi, I. Vartirus, A. Mihelis and C. Hainarosie, J. Electroanal. Chem 157 (1983) 241.Google Scholar
  5. 5.
    S. Pushpavanam, K. C. Narasimham and K. I. Vasu, Bull.Electrochem. 4 (1988) 979.Google Scholar
  6. 6.
    Idem. to be published.Google Scholar
  7. 7.
    J. F. C. Boodts and S. Trasatti, J. Electrochem. Soc. 137 (1990) 3874.CrossRefGoogle Scholar
  8. 8.
    A. I. Onuchukwu and S. Trasatti, J. Appl. Electrochem. 21 (1991) 858.CrossRefGoogle Scholar
  9. 9.
    S. Trasatti and G. Lodi, in “Electrodes of conductive Metallic oxides” Part A, edited by S. Trasatti (Elsevier, Amsterdam, 1980) p. 301.Google Scholar
  10. 10.
    S. Pizzini, G. Buzzanca, C. Mari, L. Rossi and S. Torchio, Mater. Res. Bull. 7 (1972) 1449.CrossRefGoogle Scholar
  11. 11.
    W. A. Gerrard and C. H. Steele, J. Appl. Electrochem. 8 (1978) 417.CrossRefGoogle Scholar
  12. 12.
    G. Barrel, J. Guitton, C. Montella and F. Vergara, Surf. Technol. 6 (1977) 39.CrossRefGoogle Scholar
  13. 13.
    K. J. O'Leary and T. J. Navin, in Proceedings of the Chlorine Bicentennial Symposium, edited by T. C. Jeffrey, P. A. Dunna and H. S. Holden, (Electrochemical Society, Princeton, New Jersey, 1974) p. 174.Google Scholar
  14. 14.
    S. Trasatti and W. E. O'Grady, in “Advances in electrochemistry and electrochemical engineering” Vol. 12, edited by H. Gerisher and C. W. Tobias, (Wiley, New York, 1981) p. 177.Google Scholar
  15. 15.
    H. Kim and H. A. Laitinen, J. Electrochem. Soc. 122 (1975) 53.CrossRefGoogle Scholar
  16. 16.
    J. M. Fletcher, W. E. Gardner, B. E. Greenfield, M. J. Holdaway and M. H. Rand, J. Chem. Soc. A (1968) 653.Google Scholar
  17. 17.
    J. W. Mellor, in “Comprehensive treatise on inorganic and theoretical chemistry” Vol. VII (Longmans, UK, 1947) p. 37.Google Scholar
  18. 18.
    C. L. Mantell, in “Tin and its mining, production and technology” (Hartner, 1970) p. 412.Google Scholar
  19. 19.
    Yu. B. Makarychev, E. K. Spasskaya, S. D. Khodkevich and L. M. Yakimenko, Sov. Electrochem. 12 (1976) 921.Google Scholar
  20. 20.
    C. Iwakura and K. Sakamoto, J. Electrochem. Soc. 132 (1985) 2420.CrossRefGoogle Scholar
  21. 21.
    “Metal finishing, guide book and directory”, (Metals and Plastics. Publishing Inc., New Jersey, 1986) p. 598.Google Scholar
  22. 22.
    R. Baboin, in “Electrochemical techniques for corrosion” (NACE, Texas, 1978).Google Scholar
  23. 23.
    M. Clarke, in “Properties of electrodeposits”, edited by R. Sard, H. Leidheiser and F. Ogburn (Electrochemical Society, Princeton, NJ, 1975) p. 122.Google Scholar
  24. 24.
    K. S. Rajam, and S. R. Rajagopalan, in Proceedings of the Tenth International Congress on Metallic Corrosion, Vol. II, (Oxford and IBH, New Delhi, 1987) p. 1243.Google Scholar
  25. 25.
    J. Prabhakar Rathinaraj, S. Kulandaisamy, S. C. Chockalingam, S. Viswanathan and K. S. Rajagopalan, in Proceedings of the Symposium on Advanced Electrochemicals, Karaikudi, India (1984), p. 21.Google Scholar
  26. 26.
    C. Iwakura, M. Inai, M. Manabe and H. Tamura, Denki Kagaku 48 (1980) 91.Google Scholar

Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • S. Pushpavanam
    • 1
  • K. C. Narasimham
    • 1
  1. 1.Central Electrochemical Research Institute KaraikudiIndia

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