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EIS investigation of passive film formation on mild steel in oxalic acid solution

Abstract

The properties of oxide films on mild steel formed anodically in aqueous solution containing oxalic acid were investigated by means of electrochemical impedance spectroscopy (EIS). The morphology of the passive layers at different stages of film formation was investigated using scanning electron microscopy (SEM). Passivation of mild steel in oxalic acid solution is a multi-stage process that occurs before passive layer breakdown. The influence of potential on the electrochemical behavior of the passive layer was also investigated. Depending on the passive layer potential, the EIS spectra obtained exhibited a one- or two-time constant system. This suggests the formation of either a one layer or two layer oxide film on the mild steel surface, depending on the passivation potential.

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References

  1. 1.

    Ahmad N, Macdiarmid AG (1996) Synth Met 78:103

    Article  CAS  Google Scholar 

  2. 2.

    Su W, Iroh JO (1997) J Appl Polym Sci 65:417

    Article  CAS  Google Scholar 

  3. 3.

    Schirmeisen M, Beck F (1989) J Appl Electrochem 19:401

    Article  CAS  Google Scholar 

  4. 4.

    Sazou D, Georgoios C (1997) J Electroanal Chem 429:81

    Article  CAS  Google Scholar 

  5. 5.

    Su W, Iroh JO (1997) J Appl Polym Sci 65:617

    Article  CAS  Google Scholar 

  6. 6.

    Ashrafi A, Golozar MA, Mallakpour S (2003) Iran Polym J 12:485

    CAS  Google Scholar 

  7. 7.

    Martyak NM, MeAndrew P, McCaskie JE, Dijon J (2002) Prog Org Coat 45:23

    Article  CAS  Google Scholar 

  8. 8.

    Su W, Iroh JO (1999) Electrochim Acta 44:3321

    Article  CAS  Google Scholar 

  9. 9.

    Su W, Iroh JO (1999) Electrochim Acta 44:4655

    Article  CAS  Google Scholar 

  10. 10.

    Camalet JL, Lacroix JC, Aeiyach S, Chane-Ching K, Lacaze PC (1996) J Electroanal Chem 416:179

    Article  CAS  Google Scholar 

  11. 11.

    Guo XP, Imaizumi H, Katoh K (1995) J Electroanal Chem 383:99

    Article  Google Scholar 

  12. 12.

    Guo XP, Tomoe Y, Imaizumi H, Katoh K (1998) J Electroanal Chem 445:95

    Article  CAS  Google Scholar 

  13. 13.

    Klyuev AL, Rotenberg ZA, Batrakov VV (2005) Russ J Electrochem 41:87

    Article  CAS  Google Scholar 

  14. 14.

    Hamadov L, Kadri A, Benbrahim W (2005) Appl Surf Sci 252:1510

    Article  Google Scholar 

  15. 15.

    Saltykov SN, Makarov GV, Toroptseva EL, Filatova YB (2004) Prot Met 40:56

    Article  CAS  Google Scholar 

  16. 16.

    Saltykov SN, Makarov GV, Toroptseva EL (2002) Prot Met 37:163

    Article  Google Scholar 

  17. 17.

    Mansfeld F, Kendig MW (1985) J Electrochem Soc 132:290

    Article  CAS  Google Scholar 

Download references

Acknowledgements

The authors thank the Vice Chancellor for Research and Center of Graduate Studies, Isfahan University of Technology for financial support. Editing of the manuscript by Mrs Chris Abachi and Mr Gaetano Giglione is greatly appreciated.

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Correspondence to M. A. Golozar.

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Ashrafi, A., Golozar, M.A. & Mallakpour, S. EIS investigation of passive film formation on mild steel in oxalic acid solution. J Appl Electrochem 38, 225–229 (2008). https://doi.org/10.1007/s10800-007-9429-7

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Keywords

  • Electrochemical impedance spectroscopy
  • Oxalic acid
  • Passive layer