Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium

Ayoub Salim; Said Elharrari; Gregory Guilbert; Driss Lahem; Adnane Semane; Mohamed Anouar Harrad; Mohammed Badreddine; Ahmed Legrouri; Driss Takky; Youssef Naimi

doi:10.20944/preprints202306.1177.v1

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preprints.org > chemistry and materials science > electrochemistry > doi: 10.20944/preprints202306.1177.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium

Mohamed Anouar Harrad

^* ,

Version 1 : Received: 14 June 2023 / Approved: 16 June 2023 / Online: 16 June 2023 (05:40:46 CEST)

How to cite: Salim, A.; Elharrari, S.; Guilbert, G.; Lahem, D.; Semane, A.; Harrad, M.A.; Badreddine, M.; Legrouri, A.; Takky, D.; Naimi, Y. Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium. Preprints 2023, 2023061177. https://doi.org/10.20944/preprints202306.1177.v1 Salim, A.; Elharrari, S.; Guilbert, G.; Lahem, D.; Semane, A.; Harrad, M.A.; Badreddine, M.; Legrouri, A.; Takky, D.; Naimi, Y. Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium. Preprints 2023, 2023061177. https://doi.org/10.20944/preprints202306.1177.v1

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MDPI and ACS Style

Salim, A.; Elharrari, S.; Guilbert, G.; Lahem, D.; Semane, A.; Harrad, M.A.; Badreddine, M.; Legrouri, A.; Takky, D.; Naimi, Y. Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium. Preprints 2023, 2023061177. https://doi.org/10.20944/preprints202306.1177.v1

APA Style

Salim, A., Elharrari, S., Guilbert, G., Lahem, D., Semane, A., Harrad, M.A., Badreddine, M., Legrouri, A., Takky, D., & Naimi, Y. (2023). Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium. Preprints. https://doi.org/10.20944/preprints202306.1177.v1

Chicago/Turabian Style

Salim, A., Driss Takky and Youssef Naimi. 2023 "Study of the Efficiency of Layered Double Hydroxide-based Corrosion Inhibitors on Mild Steel in Chemical Pickling in HCl Medium" Preprints. https://doi.org/10.20944/preprints202306.1177.v1

Abstract

The materials used as corrosion inhibitors are [Zn-Al-Cl], [Mg-Al-Cl], [Ni-Fe-Cl], and [Co-Fe-Cl] layered double hydroxides (LDHs). They were synthesized by coprecipitation and characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), and thermal anal-yses. The efficiency of these corrosion inhibitors on mild steel in concentrated hydrochloric acid (18.5%) at 60°C (chemical pickling conditions of steel) was studied using electrochemical and gravimetric methods for different concentrations. The surface morphology and composition were examined by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The inhibitory efficiency in the case of 1.2 g.L-1 LDH was found to be 83.33%, 83.65%, 68.38%, and 74.73% for [Ni- Fe-Cl], [Zn-Al-Cl], [Co-Fe-Cl], and [Mg-Al-Cl], respectively.

Keywords

layered double hydroxides; corrosion inhibitor; hydrochloric acid; chemical pickling; mild steel

Subject

Chemistry and Materials Science, Electrochemistry

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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