Corrosion inhibition of Schiff base and their metal complexes with [Mn (II), Co (II) and Zn (II)]: Experimental and quantum chemical studies

Boulechfar, Chérifa; Ferkous, Hana; Delimi, Amel; BERREDJEM, Malika; Kahlouche, Abdesalem; Madaci, Anis; Djellali, Souad; Boufas, Sihem; Djedouani, Amel; Errachid, Abdelhamid; Khan, Azmat Ali; Boublia, Abir; Lemaoui, Tarek; Benguerba, Yacine

doi:10.1016/j.molliq.2023.121637

Cited by 24 publications

(8 citation statements)

References 62 publications

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“…Existing research largely overlooks the potential of SB and their metal complexes as corrosion inhibitors for steel in acidic solutions . Various SB and their metallic complexes have demonstrated their effectiveness in effectively preventing the corrosion of steel in acidic environments. , Arshad et al studied the anticorrosive potential of synthesized melamine–isatin tris Schiff bases for mild steel in 0.5 M HCl. The maximum inhibitory efficiency (92.07%) was obtained at a concentration of 42.80 × 10 –3 mM .…”

Section: Introductionmentioning

confidence: 99%

“…The wide range of structures available and the relatively simple process of synthesizing SB and its metallic complexes have positioned them as potential choices for corrosion prevention. Among the numerous benefits of an ideal inhibitor are its high inhibitory effectiveness, affordability, minimal toxicity, and ease of production . Several SB compounds have been investigated, and these have demonstrated effective inhibition properties for metals and alloys in acidic environments .…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Ahchouch,

Chaouiki,

Al-Moubaraki

et al. 2024

ACS Omega

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The effectiveness of a copper(II) complex with a Schiff base derived from 2-amino-4-phenyl-5-methylthiazole and salicylaldehyde (APMS) as a corrosion inhibitor for XC18 steel in an HCl solution was investigated. Experimental findings indicated a slight negative correlation between inhibition efficiencies in 1 M HCl and temperature but a positive correlation with both inhibitor concentration and immersion time, respectively. The weight loss measurement revealed that APMS achieved a maximum inhibition rate of 92.07% at 303 K. A fitting analysis demonstrated that APMS adheres to the Langmuir adsorption isotherm. The electrochemical results revealed an enhanced inhibitive performance of APMS, with the efficiency increasing as concentrations increased, ultimately reaching a peak of 94.47% at 5 × 10 −3 mol L −1 . Potentiodynamic polarization measurements revealed that APMS acted as a mixed-type inhibitor without affecting the corrosion mechanism. Scanning electron microscopy investigations of the metal surfaces corroborated the presence of an adsorbed organic layer. Advanced theoretical calculations utilizing density functional theory and first-principles density-functional tight-binding were conducted to gain insights into the behavior of APMS on the metal surface. APMS derives its advantages from crucial inter-and intramolecular interactions, resulting in the formation of a resilient adsorption layer, in line with the experimental findings. It is found that the presence of the APMS-based inhibitor exhibits a significant synergistic corrosion inhibition effect. The current study offers a design direction for enhancing the structural characteristics of Schiff base metal complexes, laying the groundwork for multifunctional frameworks to minimize corrosion rates with considerations for real-world use and cost-efficiency. The ability to replace harmful, expensive constituents with sustainable, and cost-effective organic alternatives represents a significant outcome of this study.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Ahchouch,

Chaouiki,

Al-Moubaraki

et al. 2024

ACS Omega

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“…These compounds exhibit numerous desirable chemical properties and find applications in various fields, making them a subject of extensive investigation. [15] Consequently, Schiff bases have emerged as promising candidates for corrosion inhibitors due to their excellent adsorption and film-forming properties in recent years. [16][17][18][19][20][21][22][23][24][25] In particular, several Schiff bases have been identified as effective corrosion inhibitors for mild steel, [26][27][28][29][30][31][32] aluminum, [33,34] and copper [35,36] in media containing HCl [26,37] and H 2 SO 4 .…”

Section: Introductionmentioning

confidence: 99%

“…The practical attributes of Schiff bases, such as their electronic properties, solubility in common solvents, ease of preparation, and wide range of structures, and have garnered significant attention from researchers. These compounds exhibit numerous desirable chemical properties and find applications in various fields, making them a subject of extensive investigation [15] . Consequently, Schiff bases have emerged as promising candidates for corrosion inhibitors due to their excellent adsorption and film‐forming properties in recent years [16–25] .…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition of Carbon Steel by Some Schiff Base Compounds in HCl and H₂SO₄ Solutions

Iranpour,

Babaei,

Bagherzadeh

2024

ChemistrySelect

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The inhibition power of two Schiff bases on carbon steel corrosion in 1 M HCl and 0.5 M H2SO4 solutions has been investigated using weight loss, Tafel polarization, and electrochemical impedance spectroscopy techniques. The results revealed that increasing the concentration of inhibitors in acidic solutions led to a higher inhibition efficiency. The polarization curves indicated that the Schiff bases acted as mixed inhibitors, affecting both the cathodic and anodic reactions. The adsorption of the inhibitors on the carbon steel surface followed the Langmuir adsorption isotherm, and various adsorption isotherm parameters such as Kads, ΔGads, ΔHads, and ΔSads were determined at room temperature. Furthermore, the effect of temperature on the inhibitors′ performance was examined within the range of 25–45 °C. The corrosion‐related activation energy, pre‐exponential factor (k), activation enthalpy, and entropy were calculated to assess the inhibitors′ behavior. Scanning electron microscopy (SEM) was employed to examine some carbon steel samples, revealing differences in inhibition efficiency attributed to the inhibitors′ chemical structure. The results highlighted the highest inhibition efficiency in H2SO4 medium at 93.4 %, with a corresponding free energy of 39.51 KJ/mol indicating physical‐chemical adsorption of inhibitor molecules. Furthermore, an enthalpy value of −40.6 KJ/mol suggested an exothermic inhibitor absorption process. The findings are presented and discussed in detail.

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“…In contrast, finding ecofriendly inhibitors that are nontoxic, biodegradable and biocompatible is a desirable development to avoid environmental pollution. Presently, lots of green inhibitors have been developed to inhibit the corrosion of metals. − However, it is acknowledged that the major draw-back of green inhibitors is their relatively low inhibition efficiency. It is still a problem to develop green inhibitors with high inhibition efficiency.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Evaluation of Co-MOF Based ZIF-67 for CO₂ Corrosion Inhibition of X65 Steel: Insights from Electrochemical Studies and a Machine Learning Algorithm

et al. 2023

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Co-MOF based metal organic framework was synthesized by reacting a metal ion (cobalt nitrate hexahydrate) with an organic ligand (2-methylimidazole) via a wet chemical method. The resulting material was characterized using detailed analytical methods and further was used as a self-assembly corrosion inhibitor in sweet corrosive environment. The empirical data set via electrochemical studies was modeled using adaptive neuro fuzzy inference system (ANFIS). The observed results showed that Co-MOF could significantly impede the corrosion rate of X65 steel and protect it from CO 2 corrosion. Increasing the concentration of Co-MOF in the test solution increased the inhibition efficiency up to 97% at 0.1 wt % Co-MOF with a mixed-type inhibition mechanism. In addition, the DFT/MD-simulation approach evidenced the adsorption disposition of Co-MOF in aqueous and gas phase which complement with the empirical findings. Also, the prognostic capability of the proposed algorithm based on the statistical parameters such as root-mean-square error (RMSE), chi square (χ 2 ), model predictive error (MPE) and coefficient of determination (R 2 ) were appraised. From the viewpoint of statistics, the explanatory model aligned credibly with the ANFIS algorithm. The overall findings confirmed a dense hybrid coating of the synthesized Co-MOF on X65 steel as responsible for the inhibition of the sweet corrosion.

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Corrosion inhibition of Schiff base and their metal complexes with [Mn (II), Co (II) and Zn (II)]: Experimental and quantum chemical studies

Cited by 24 publications

References 62 publications

Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Corrosion Inhibition of Carbon Steel by Some Schiff Base Compounds in HCl and H₂SO₄ Solutions

Synthesis, Characterization, and Evaluation of Co-MOF Based ZIF-67 for CO₂ Corrosion Inhibition of X65 Steel: Insights from Electrochemical Studies and a Machine Learning Algorithm

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Corrosion inhibition of Schiff base and their metal complexes with [Mn (II), Co (II) and Zn (II)]: Experimental and quantum chemical studies

Cited by 24 publications

References 62 publications

Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Fabrication of Protective Organic Layer Using Schiff-Base Metal Complex Responsible for Excellent Corrosion Performance: Experimental and Theoretical Perspectives

Corrosion Inhibition of Carbon Steel by Some Schiff Base Compounds in HCl and H2SO4 Solutions

Synthesis, Characterization, and Evaluation of Co-MOF Based ZIF-67 for CO2 Corrosion Inhibition of X65 Steel: Insights from Electrochemical Studies and a Machine Learning Algorithm

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Corrosion Inhibition of Carbon Steel by Some Schiff Base Compounds in HCl and H₂SO₄ Solutions

Synthesis, Characterization, and Evaluation of Co-MOF Based ZIF-67 for CO₂ Corrosion Inhibition of X65 Steel: Insights from Electrochemical Studies and a Machine Learning Algorithm