Electrochemical and quantum chemical studies of 2-amino-4-methyl-thiazole as corrosion inhibitor for mild steel in HCl solution

Yüce, Ayşe Ongun; Mert, Başak Doğru; Kardaş, Gülfeza; Yazıcı, Birgül

doi:10.1016/j.corsci.2014.02.029

Cited by 199 publications

(32 citation statements)

References 33 publications

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“…On the other hand, as an exemplary heterocyclic compound, thiazole moiety is the best starting point for the synthesis of a large number of derivatives, including dyes, drugs, fungicides, biocides, and intermediates in the synthesis of antibiotics beside chemical reaction accelerators, where a great number of thiazole derivatives can be substituted with several groups for varying pharmaceutical applications . They are also applied in the syntheses of special types of synthetic dyes, active corrosion inhibitors for protection of mild steel and copper, and as an ionophore in the construction of a membrane sensor selective for a lutetium (III). Their derivatives persist to engage the interest of the research scientists due to their extensive applications in the biotechnological systems .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of novel VO (II)‐thaizole complexes; spectral, conformational characterization, MOE‐docking and genotoxicity

El‐Metwaly

Althagafi

Katouah

et al. 2019

Applied Organom Chemis

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New VO (II)‐thaizolyl hydrazine complexes were synthesized and characterized by analytical, spectral and theoretical techniques. Bi‐nuclear complexes were suggested for all synthesizes upon neutral poly‐dentate mode of bonding. UV–Vis and EPR spectra, proposed two structural geometries as, square‐planer and octahedral. TGA confirmed the contribution of solvent molecules through physical and/or coordinate‐bonding. XRD parameters calculated, displayed outstanding nanometer‐sizes for all nano‐crystalline compounds, which suffering slight imperfections. Also, SEM images showed, spherical‐shape that observed for most topographic particulates. Conformational study executed for all new synthesizes, demonstrated their optimized structural‐forms. Furthermore, important physical parameters were computed that predict essential characteristics as, biological efficiency. Predictable parameters as softness and electrophilicity, point to priority of VO (II)‐4d complex. Genotoxic study, was already examined, for all new synthesizes, against CT‐DNA and displayed complete deterioration for DNA, by influence of most tested compounds. Moreover, MOE‐docking technique, was executed against receptors of Y‐family DNA‐polymerase (4irk) and Key‐Enzyme Linking‐Metabolic Inflammation (4cyf). This docking study displayed the following ascending order; VO (II)‐4c,4irk ˃ VO (II)‐4d,4cyf ˃ VO (II)‐4c, 4cyf ˃ VO (II)‐4b, 4cyf, based on scoring‐energy values. This study concluded with promising prediction of these complexes in relation to DNA‐polymerase as well as inflammation enzyme that compared with known anti‐inflammatory drug (meloxicam).

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Section: Introductionmentioning

confidence: 99%

Synthesis of novel VO (II)‐thaizole complexes; spectral, conformational characterization, MOE‐docking and genotoxicity

El‐Metwaly

Althagafi

Katouah

et al. 2019

Applied Organom Chemis

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“…The use of organic inhibitors is recognized as a practical method to reduce corrosion rate in many industrial parts [4,[10][11][12][13]. Therefore, a wide range of researches have has been carried out to introduce new compounds which are more efficient and cost effective [4,7,10,[12][13][14][15][16][17][18][19]. There are several factors like nature of metal, aggressive ions concentration, pH value, temperature, immersion time, hydrodynamic flow and etc which can strongly affect inhibitors performance [6,11].…”

Section: Introductionmentioning

confidence: 99%

The Response Surface Method as an Experimental Design Technique to Explore and Model the Performance of Corrosion Inhibitors

Kosari¹,

Davoodi²,

Moayed³

et al. 2015

Corrosion

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Numerous environmental factors strongly affect performance of inhibitors performance. Therefore many experimental tests and much time are needed to fully explore the inhibitor performance in various conditions. This paper deals with introducing response surface method (RSM) using central composite face-centered design as a method in order to explore and mathematically model the inhibitors behavior in different working conditions. Also, this method provides us the ability of significantly decreasing the number of experiments. In this study, as an example, the effect of temperature, hydrochloric acid and inhibitor concentrations on inhibitive behavior of 4-aminophenyl disulphide for mild steel is examined. Further, two mathematical models are established to estimate mild steel corrosion rate in the inhibited and uninhibited solutions. Analysis of variance (ANOVA) is applied to check the adequacy of models. Finally, the Langmuir adsorption energy is calculated using the acquired models. The results show that despite the inhibitor efficiency changes in various conditions, the adsorption type onto metal is an invariable parameter.

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“…In corrosion tests, the Nyquist plot measured by electrochemical impedance shows a semicircle in the testing media [22], corresponding to the equivalent circuit, as shown in Figure 8, in which Rs represents the electrolyte resistance, Rct is the charge transfer resistance between the electrolyte and electrode, and CPE stands for the double layer capacitance on the electrode surface [23][24][25]. Figure 9, revealing that the charge transfer resistance (Rct) of SPAN deposited on mild steels is several hundred times higher than that of the blank sample (mild steel).…”

Section: Electrochemical Measurements Corrosion Test In Hclmentioning

confidence: 99%

Anti-Corrosion Characteristics of Electrodeposited Self-Doped Polyaniline Films on Mild Steel in Low Acidity

Wang

Lin

et al. 2018

Coatings

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Without the addition of inorganic acids, 2,5-Diaminobenzenesulfonic acid (DABSA) molecules form an acid environment, and are then electrochemically copolymerized with AN monomers to generate a self-doped polyaniline (SPAN) film on mild steel substrates. These SPAN deposition films are employed to test the protection efficiency for mild steel in a corrosion environment of HCl and NaCl, respectively. Electrochemical impedance spectroscopy (EIS) and polarization were used to determine the charge transfer resistance (R ct ) and corrosion current (I corr ), respectively. The above two parameters R ct and I corr are combined to evaluate the protection efficiency of SPAN film on mild steel. Experimental results show that the SPAN thin film with the AN/DABSA ratio of 8.8 has the optimal corrosion resistance in 1 M HCl and 1 M NaCl aqueous solutions, respectively.

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Electrochemical and quantum chemical studies of 2-amino-4-methyl-thiazole as corrosion inhibitor for mild steel in HCl solution

Cited by 199 publications

References 33 publications

Synthesis of novel VO (II)‐thaizole complexes; spectral, conformational characterization, MOE‐docking and genotoxicity

Synthesis of novel VO (II)‐thaizole complexes; spectral, conformational characterization, MOE‐docking and genotoxicity

The Response Surface Method as an Experimental Design Technique to Explore and Model the Performance of Corrosion Inhibitors

Anti-Corrosion Characteristics of Electrodeposited Self-Doped Polyaniline Films on Mild Steel in Low Acidity

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