Synthesis of heterocyclic compounds of 5-substituted-1,3,4-oxadiazole-2-thiols for the prevention of nickel corrosion

Shelly Gapil, Mehdi Ebadi, Wan J. Basirun, Aurangzeb Hasan, Khalijah Awang, Maziar A. Golsefidi, Mohamad N. Azmi, M. Y. Sulaiman

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Two heterocyclic compounds, 5-(4-methoxyphenyl)-1,3,4-oxadiazole-2-thiol (A1) and 5-(4-nitrophenyl)-1,3,4-oxadiazole-2-thiol (A2) were studied as inhibitors of nickel metal corrosion. The kinetic and thermodynamic parameters of corrosion were determined from polarization curves and impedance measurements. It was found that the nickel surface was protected from corrosion when the inhibitor concentration was increased in the corrosive medium. Electrochemical impedance spectroscopy, open circuit potential, and linear scan voltammetry results showed that the corrosion rate of Ni decreased in the presence of inhibitors in a 3.5% NaCl solution, with the inhibition strength in the order A1 > A2. EIS measurements showed that the charge transfer resistances of the nickel surface in 0.16 mM A1 and A2 were 144.2 and 119.3 kΩ cm2 in a 3.5% NaCl solution, respectively. FESEM images showed that the surface was well protected against corrosion when the concentration of inhibitors was increased to 0.3 mM in the corrosive media.

    Original languageEnglish
    Pages (from-to)1543-1554
    Number of pages12
    JournalInternational Journal of Electrochemical Science
    Volume10
    Issue number2
    Publication statusPublished - 2015

    Fingerprint

    Heterocyclic Compounds
    Nickel
    Sulfhydryl Compounds
    Corrosion inhibitors
    Corrosion
    Caustics
    Voltammetry
    Corrosion rate
    Electrochemical impedance spectroscopy
    Charge transfer
    Thermodynamics
    Polarization
    Kinetics
    1,3,4-oxadiazole
    Networks (circuits)

    Keywords

    • 1,3,4-oxadiazole-2-thiols
    • Corrosion behavior
    • EIS
    • Heterocyclic compound
    • Nickel
    • Organic inhibitor
    • Polarization measurements

    ASJC Scopus subject areas

    • Electrochemistry

    Cite this

    Gapil, S., Ebadi, M., Basirun, W. J., Hasan, A., Awang, K., Golsefidi, M. A., ... Sulaiman, M. Y. (2015). Synthesis of heterocyclic compounds of 5-substituted-1,3,4-oxadiazole-2-thiols for the prevention of nickel corrosion. International Journal of Electrochemical Science, 10(2), 1543-1554.

    Synthesis of heterocyclic compounds of 5-substituted-1,3,4-oxadiazole-2-thiols for the prevention of nickel corrosion. / Gapil, Shelly; Ebadi, Mehdi; Basirun, Wan J.; Hasan, Aurangzeb; Awang, Khalijah; Golsefidi, Maziar A.; Azmi, Mohamad N.; Sulaiman, M. Y.

    In: International Journal of Electrochemical Science, Vol. 10, No. 2, 2015, p. 1543-1554.

    Research output: Contribution to journalArticle

    Gapil, S, Ebadi, M, Basirun, WJ, Hasan, A, Awang, K, Golsefidi, MA, Azmi, MN & Sulaiman, MY 2015, 'Synthesis of heterocyclic compounds of 5-substituted-1,3,4-oxadiazole-2-thiols for the prevention of nickel corrosion', International Journal of Electrochemical Science, vol. 10, no. 2, pp. 1543-1554.
    Gapil, Shelly ; Ebadi, Mehdi ; Basirun, Wan J. ; Hasan, Aurangzeb ; Awang, Khalijah ; Golsefidi, Maziar A. ; Azmi, Mohamad N. ; Sulaiman, M. Y. / Synthesis of heterocyclic compounds of 5-substituted-1,3,4-oxadiazole-2-thiols for the prevention of nickel corrosion. In: International Journal of Electrochemical Science. 2015 ; Vol. 10, No. 2. pp. 1543-1554.
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    abstract = "Two heterocyclic compounds, 5-(4-methoxyphenyl)-1,3,4-oxadiazole-2-thiol (A1) and 5-(4-nitrophenyl)-1,3,4-oxadiazole-2-thiol (A2) were studied as inhibitors of nickel metal corrosion. The kinetic and thermodynamic parameters of corrosion were determined from polarization curves and impedance measurements. It was found that the nickel surface was protected from corrosion when the inhibitor concentration was increased in the corrosive medium. Electrochemical impedance spectroscopy, open circuit potential, and linear scan voltammetry results showed that the corrosion rate of Ni decreased in the presence of inhibitors in a 3.5{\%} NaCl solution, with the inhibition strength in the order A1 > A2. EIS measurements showed that the charge transfer resistances of the nickel surface in 0.16 mM A1 and A2 were 144.2 and 119.3 kΩ cm2 in a 3.5{\%} NaCl solution, respectively. FESEM images showed that the surface was well protected against corrosion when the concentration of inhibitors was increased to 0.3 mM in the corrosive media.",
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