Effect of metal ions on corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid for steel in neutral solution

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23 Citations (Scopus)

Abstract

The influence of metal ions on the adsorption process and corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid (C7) on carbon steel surface in neutral solutions has been investigated by surface analytical and electrochemical techniques. Effective corrosion inhibition given by C7 in the presence of Zn2+ and Ni2+ is believed to be associated with the ability of the hydroxamic acid to form stable slightly soluble complexes with these cations. The influence of the metal ions on the inhibition efficiency is primarily related to the stability constants of C7-cation complexes. Magnesium has no effect on the inhibition performance as it has low stability constant with C7. It was found that the inhibition by C7/cation mixtures depends greatly on the molar ratio and immersion time.

Original languageEnglish
Pages (from-to)2754-2766
Number of pages13
JournalCorrosion Science
Volume49
Issue number6
DOIs
Publication statusPublished - Jun 2007

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Hydroxamic Acids
Steel
Metal ions
Cations
Positive ions
Corrosion
Acids
Magnesium
Carbon steel
Adsorption

Keywords

  • A. Dihydroxamic acid
  • B. EIS
  • B. SEM
  • B. XPS
  • C. Neutral inhibition

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

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title = "Effect of metal ions on corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid for steel in neutral solution",
abstract = "The influence of metal ions on the adsorption process and corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid (C7) on carbon steel surface in neutral solutions has been investigated by surface analytical and electrochemical techniques. Effective corrosion inhibition given by C7 in the presence of Zn2+ and Ni2+ is believed to be associated with the ability of the hydroxamic acid to form stable slightly soluble complexes with these cations. The influence of the metal ions on the inhibition efficiency is primarily related to the stability constants of C7-cation complexes. Magnesium has no effect on the inhibition performance as it has low stability constant with C7. It was found that the inhibition by C7/cation mixtures depends greatly on the molar ratio and immersion time.",
keywords = "A. Dihydroxamic acid, B. EIS, B. SEM, B. XPS, C. Neutral inhibition",
author = "Abdulmajed Alagta and I. Felhősi and J. Telegdi and I. Bert{\'o}ti and E. K{\'a}lm{\'a}n",
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pages = "2754--2766",
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T1 - Effect of metal ions on corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid for steel in neutral solution

AU - Alagta, Abdulmajed

AU - Felhősi, I.

AU - Telegdi, J.

AU - Bertóti, I.

AU - Kálmán, E.

PY - 2007/6

Y1 - 2007/6

N2 - The influence of metal ions on the adsorption process and corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid (C7) on carbon steel surface in neutral solutions has been investigated by surface analytical and electrochemical techniques. Effective corrosion inhibition given by C7 in the presence of Zn2+ and Ni2+ is believed to be associated with the ability of the hydroxamic acid to form stable slightly soluble complexes with these cations. The influence of the metal ions on the inhibition efficiency is primarily related to the stability constants of C7-cation complexes. Magnesium has no effect on the inhibition performance as it has low stability constant with C7. It was found that the inhibition by C7/cation mixtures depends greatly on the molar ratio and immersion time.

AB - The influence of metal ions on the adsorption process and corrosion inhibition of pimeloyl-1,5-di-hydroxamic acid (C7) on carbon steel surface in neutral solutions has been investigated by surface analytical and electrochemical techniques. Effective corrosion inhibition given by C7 in the presence of Zn2+ and Ni2+ is believed to be associated with the ability of the hydroxamic acid to form stable slightly soluble complexes with these cations. The influence of the metal ions on the inhibition efficiency is primarily related to the stability constants of C7-cation complexes. Magnesium has no effect on the inhibition performance as it has low stability constant with C7. It was found that the inhibition by C7/cation mixtures depends greatly on the molar ratio and immersion time.

KW - A. Dihydroxamic acid

KW - B. EIS

KW - B. SEM

KW - B. XPS

KW - C. Neutral inhibition

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U2 - 10.1016/j.corsci.2006.11.008

DO - 10.1016/j.corsci.2006.11.008

M3 - Article

VL - 49

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JO - Corrosion Science

JF - Corrosion Science

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