Synergistic Inhibition Between Polyvinylpyrollidone and Iodide Ions on Corrosion of Aluminium in HCl (original) (raw)

Abstract

The effect of iodide ions on the corrosion inhibition of aluminium in 2M HCl in the presence of polyvinylpyrollidone (PVP) was studied using gasometric (hydrogen evolution) technique at 30-60 o C. Results obtained showed that PVP effectively reduces the corrosion rates of aluminium in the acid medium. Inhibition efficiency (%I) increases with increase in concentration of PVP. Increase in temperature increases corrosion rate but decreases inhibition efficiency. The addition of iodide ions enhanced the inhibition efficiency of PVP considerably. Adsorption of PVP and PVP + KI followed Temkin adsorption isotherm. Phenomenon of physical adsorption is proposed from the obtained E a and G ads o values. The synergistic parameter (S 1 ) obtained was found to be greater than unity, which indicates that the enhanced inhibition efficiency caused by the addition of iodide is only due to synergistic effect.

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References (37)

  1. Oguzie EE, Onuoha GN, Onuchukwu AI. The inhibition of alumin- ium corrosion in potassium hydroxide by congo red dye and syner- gistic action with halide ions. Anticorros Methods Mater 1984; 52(5): 293-98.
  2. Rajendran S, Sridevi SP, Anthony N, John AA, Sundearavadivelu M. Corrosion behaviour of carbon steel in polyvinyl alcohol. Anti- corros Methods Mater 2005; 52(2): 102-7.
  3. Schweinsberg, DP, Hope GA, Trueman A, Otieno-Alego V. An electrochemical and SERS study of the action of polyvinylpyrroli- done and polyethylenimine as inhibitor for copper in aerated H2SO4. Corros Sci 1996; 38: 587-99.
  4. Jianguo J, Lin W, Otieno-Alego V, Schweinsberg DP. Poly- vinylpyrrolidone and polyethylenimine as corrosion inhibitors for the corrosion of a low carbon steel in phosphoric acid. Corros Sci 1995; 37(6): 975-85.
  5. Abed Y, Hammouti B, Touhami F, et al. Poly (4-vinylpyrindine) (P4VP) as Corrosion Inhibitors of Armco Iron in Molar sulphuric acid solution. Bull Electrochem 2001; 17(3): 105-10.
  6. Bereket GA, Yurt A, Turk H. Inhibition of corrosion of low carbon steel in acidic solution by selected polyelectrolytes and polymers. Anticorros Methods Mater 2003; 50(6): 422-535.
  7. Jeyaprabha C, Sathiyanarayanan S, Venkatachari G. Polyaniline as corrosion inhibitor for iron in acid solutions. J Appl Polym Sci 2006; 101 (4): 2144-53.
  8. Umoren SA, Ebenso EE, Okafor PC, Ogbobe O. Water soluble polymers as corrosion inhibitors of mild steel in acidic medium. Pigm Resin Technol 2006; 35(6): 346-52.
  9. Ashassi-Sorkhabi H, Ghalebsaz-Jeddi N. Inhibition effect of poly- ethylene glycol on corrosion of carbon steel in sulphuric acid. Ma- ter Chem Phys 2005; 92: 480-86.
  10. Jeyaprabha C, Sathiyanarayanan S, Phani KLN, Venkatachari G. Investigation of the inhibitive effect of poly (diphenylamine) on corrosion of iron in 0.5M H 2SO4 solutions. J Electroanal Chem 2005; 585 (2): 250-55.
  11. Umoren SA, Ogbobe O, Ebenso EE, Ekpe UJ. Effect of halide ions on the corrosion inhibition of mild steel in acidic medium using polyvinyl alcohol. Pigm Resin Technol 2006; 35(5): 284-92.
  12. Ebenso EE, Ekpe UJ, Umoren SA, Jackson E, Abiola OK, Oforka NC. Synergistic effect of halide ions on the corrosion inhibition of aluminium in acidic medium by some polymers. J Appl Polym Sci 2006; 100 (4): 2889-94.
  13. Umoren SA, Ogbobe O, Ebenso EE. The adsorption characteristics and synergistic inhibition between polyethylene glycol and halides ions for the corrosion inhibition of mild steel in acidic medium. Bull Electrochem 2006; 22(4): 155 -67.
  14. Umoren SA, Ogbobe O, Ebenso EE. Synergistic inhibition of alu- minium corrosion in acidic medium by gum Arabic and halide ions. Trans SAEST 2006; 41: 74-81.
  15. Oguzie EE, Li Y, Wang FH. Corrosion inhibition and adsorption behaviour of methionine on mild steel in sulphuric acid and syner- gistic effect of iodide ions. J Coll Interf Sci 2007; 310: 90-8.
  16. Oguzie EE, Li Y, Wang FH. Effect of surface nanocrystallization on corrosion and corrosion inhibition of low carbon steel: synergis- tic effect of methionine and iodide ion. Electrochim Acta 2007; 52: 6988-96.
  17. Zhang DQ, Gao LX, Zhou GD. Synergistic effect of 2-mercapso benzimidazole and KI on copper corrosion inhibition in aerated sulphuric acid solution. J Appl Electrochem 2003; 33: 361-66.
  18. Feng Y, Siow KS, Tea WK, Hsieh AK. The synergistic effects of propargyl alcohol and potassium iodide on the inhibition of mild steel in 0.5M sulphuric acid solution. Corros Sci 1999; 41: 829-52.
  19. Harek Y, Larabi L. Corrosion Inhibition of Mild Steel in 1 mol dm- 3 HCl by Oxalic N-Phenylhydrazide N_-Phenylthiosemicarbazide. Kem Ind 2004; 53(2): 55-61.
  20. Larabi L, Harek Y. Effect of iodide ions on corrosions inhibitions of mild steel in 0.5M H 2SO4 by poly (4-vinylpyridine). Portugaliae Electrochim Acta 2004; 22: 227-47.
  21. Quraishi MA, Rawat J. Influence of iodide ions on inhibitive per- formance of tetraphenyl-dithia-octaaza-cyclotetradeca-hexacne (PTAT) during pickling of mild steel in hot sulphuric acid. Mater Chem Phys 2001; 70: 95-9.
  22. Larabi L. Harek Y, Traisnel M, Mansri A. Synergistic influence of poly (4-vinyl pyridine) and potassium iodide on inhibition of corro- sion of mild steel in 1M HCl. J Appl Electrochem 2004; 34: 833- 39.
  23. Umoren SA, Ebenso EE. The synergistic effect of polyacrylamide and iodide ions on the corrosion inhibition of mild steel in H2SO4. Mater Chem Phys 2007; 106(2-3): 387-93.
  24. Umoren SA, Ebenso EE, Okafor PC, Ekpe UJ, Ogbobe O. Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol. J Appl Polym Sci 2007; 103(5): 2810-16.
  25. Gomma GK. Corrosion of low-carbon steel in sulphuric acid solu- tion in presence of pyrazole halides mixtures. Mater Chem Phys 1998; 55: 241-46.
  26. Ebenso EE. Effect of halide ions on the corrosion inhibition of mild steel in H2SO4 using methyl red. Part 1, Bull Electrochem 2003; 19 (5): 209-16.
  27. Oguzie EE. Corrosion inhibition of aluminium in acidic and alka- line media by Sansevieria trifaciata extract. Corros Sci 2007; 49: 1527-39.
  28. Ebenso EE, Ekpe UJ, Ibok UJ, et al. Corrosion inhibition studies of some plant extract on aluminium in acidic medium. Trans SAEST 2004; 39: 117-23.
  29. Mousa MN, Fouda AS, Taha FI, Elnenna A. Some thiosemicar- bazide derivatives as corrosion inhibitors for aluminium in sodium hydroxide. Bull Korean Chem Soc 1988; 9 (4): 191-95.
  30. El-Etre AY. Inhibition of aluminium corrosion using Opuntia ex- tract. Corros Sci 2003; 45: 2485-95.
  31. Abdallah M. Antibacterial drugs as corrosion inhibition for corro- sion of Al in HCl solution. Corros Sci 2004; 46 (18): 1981-96.
  32. Aytac A, Oxmen U, Kabasakaloglu M. Investigation of some Schif bases as acidic corrosion of alloy AA 3102. Mater Chem Phys 2005; 89 (1): 176-81.
  33. Morad MS, Kamal E1-Dean AM. 2, 2'Dithiobis (3-cyano-4, 6- dimethylpyridine): a new class of acid inhibitors for mild steel. Corros Sci 2006; 48: 3398-412.
  34. Tang L, Li X, Si Y, Mu G, Liu G. The synergistic inhibition be- tween 8-hydroxyguinoline and chloride ion for the corrosion of cold rolled steel in 0.5M sulphuric acid. Mater Chem Phys 2006; 95: 29-38.
  35. Quraishi MA, Sharma HK. Thiazo1es as corrosion inhibitors for mild steel in formic and acetic acid solutions. J Appl Electrochem 2005; 35: 33-9.
  36. Oguzie EE, Unaegbu L, Ogukwe CN, Okolue BN, Onuchukwu AI. Inhibition of mild steel corrosion in sulphuric acid using indigo dye and synergistic halide additives. Mater Chem Phys 2004; 84: 363- 68.
  37. Oguzie EE, Okolue BN, Ebenso EE, Onouha GN, Onuchukwu AI. Evaluation of the inhibitory effect of methylene blue dyes on the corrosion of aluminium in hydrochloric acid. Mater Chem Phys 2004; 87: 394-401.