Inhibition effects of a quaternary ammonium-based ionic liquid on steel in acid solution: Electrochemical and surface analyses

Paulina Arellanes-Lozada, Octavio Olivares-Xometl, Natalya V. Likhanova, Elsa M. Arce-Estrada, Irina V. Lijanova, Luis Lartundo-Rojas, Ma Mendoza-Herrera

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The present work reports the performance of N-dimethyl-N-di(cocoalkyl) ammonium methyl sulfate (DCA), as a corrosion inhibitor of API-X52 carbon steel exposed to a 1M HCl solution. The EIS technique was used to assess the inhibition efficiency. Surface analyses were performed by XPS and GIXRD. The addition of DCA to the corrosive solution promoted the formation of an interfacial protective layer, which can include corrosion products such as FeO(OH) and FeCl2·nH2O. The long term stability of DCA was ascertained by the ICP-OES technique. The inhibition efficiency subsequent to 1 month of solution immersion was 97 %.

Original languageEnglish
Pages (from-to)7785-7800
Number of pages16
JournalInternational Journal of Electrochemical Science
Volume11
Issue number9
DOIs
StatePublished - 2016

Keywords

  • Acid media
  • Corrosion inhibitor
  • EIS
  • Ionic-liquid
  • XPS

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