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Satyabama, P.; Rajendran, Susai; Nguyen, Tuan Anh

Corrosion inhibition of aluminum by oxalate self-assembling monolayer

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  • Medientyp: E-Artikel
  • Titel: Corrosion inhibition of aluminum by oxalate self-assembling monolayer
  • Beteiligte: Satyabama, P.; Rajendran, Susai; Nguyen, Tuan Anh
  • Erschienen: Emerald, 2019
  • Erschienen in: Anti-Corrosion Methods and Materials
  • Sprache: Englisch
  • DOI: 10.1108/acmm-01-2019-2061
  • ISSN: 0003-5599
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:sec><jats:title content-type="abstract-subheading">Purpose</jats:title><jats:p>This paper aims to evaluate the inhibition efficiency (IE) of oxalate ions in controlling corrosion of aluminum at pH 10.</jats:p></jats:sec><jats:sec><jats:title content-type="abstract-subheading">Design/methodology/approach</jats:title><jats:p>The IE has been determined by the classical weight loss method. The corrosion behavior of aluminum was investigated by using potentiodynamic polarization and electrochemical impedance measurements. Ultra violet (UV)-visible and Fluorescence spectra have been used to analyze the film formed on the aluminum surface after immersion.</jats:p></jats:sec><jats:sec><jats:title content-type="abstract-subheading">Findings</jats:title><jats:p>The maximum IE was 88 per cent, which was offered by a mixture of 250 ppm oxalate ions and 50 ppm [Zn<jats:sup>2+</jats:sup>]. Potentiodynamic polarization data revealed that the protective film was formed on the metal surface. UV-visible and Fluorescence spectra indicated the presence of Al<jats:sup>3+</jats:sup>−oxalate complex in the protective film formed on aluminum substrate after immersion in [OX]/[Zn<jats:sup>2+</jats:sup>] solution.</jats:p></jats:sec><jats:sec><jats:title content-type="abstract-subheading">Originality/value</jats:title><jats:p>The findings of this work shed more light on the corrosion inhibition of aluminum by oxalate self-assembling monolayers.</jats:p></jats:sec>