Schiff’s base of pyridyl substituted triazoles as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution

Ansari, K.R.; Quraishi, M.A.; Singh, Ambrish

doi:10.1016/j.corsci.2013.10.009

Cited by 381 publications

(125 citation statements)

References 42 publications

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“…Furthermore, the smaller double layer capacitance, the better protection provided by an inhibitor. It is important to remark that all these compounds displayed corrosion inhibition efficiencies over 90% at rather low concentration values, which resulted even better than other types of corrosion inhibitors reported in the literature [30,[32][33][34][35][36][37][38][39]. All compounds studied in this work showed a corrosion inhibitive activity comparable at least or better than to other organic inhibitors derived from purine nucleobases (adenine and guanine) [53][54][55].…”

Section: Scheme 1 Propargylation Of Pyrimidine Nucleobases 1-2mentioning

confidence: 83%

“…In the last years, the corrosion inhibition of steel in acid solutions by nitrogen-containing heterocyclic compounds has been extensively studied. In this regard, 1,2,4-triazole derivatives are considered to be effective acidic corrosion inhibitors [30][31][32][33][34]. Recently, some 1,2,3-triazole derivatives have been reported as a new class of corrosion inhibitors in acidic media [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

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Multicomponent Click Synthesis of New 1,2,3-Triazole Derivatives of Pyrimidine Nucleobases: Promising Acidic Corrosion Inhibitors for Steel

et al. 2013

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A series of new mono-1,2,3-triazole derivatives of pyrimidine nucleobases were synthesized by one-pot copper(I)-catalyzed 1,3-dipolar cycloaddition reactions between N-1-propargyluracil and thymine, sodium azide and several benzyl halides. The desired heterocyclic compounds were obtained in good yields and characterized by NMR, IR, and high resolution mass spectrometry. These compounds were investigated as corrosion inhibitors for steel in 1 M HCl solution, using electrochemical impedance spectroscopy (EIS) technique. The results indicate that these heterocyclic compounds are promising acidic corrosion inhibitors for steel.

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Section: Scheme 1 Propargylation Of Pyrimidine Nucleobases 1-2mentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Multicomponent Click Synthesis of New 1,2,3-Triazole Derivatives of Pyrimidine Nucleobases: Promising Acidic Corrosion Inhibitors for Steel

et al. 2013

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“…Moreover, in the presence of the inhibitors, a pronounced shift in the E corr values can be observed towards the cathodic direction which is indicative of the cathodic predominance of the inhibition process. However, the decrease in both the anodic and cathodic currents in the presence of inhibitors suggests that the FA and EA can be categorized as mixedtype inhibitors [23,24]. The maximum inhibition efficiencies obtained for EA and FA are 99.08 and 98.41%, respectively, at 150 ppm.…”

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 85%

Expired atorvastatin drug as corrosion inhibitor for mild steel in hydrochloric acid solution

et al. 2017

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The application of expired drugs as corrosion inhibitors provides a cost effective and environmentally benign alternative to otherwise tedious and costly disposal/ degradation process. In this context, we herein investigate the use of expired atorvastatin (EA) for corrosion inhibition of mild steel in 1 M HCl solution using weight loss, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (Tafel) methods. Fresh atorvastatin (FA) drug was also used for above studies for comparison purpose to understand whether there is any significant difference between the inhibition efficiency of the two after the expiration date of the drug. EIS analysis shows an increase in polarization resistance due to the adsorbed inhibitor molecules on metal surface. Potentiodynamic polarization indicates that both the EA and FA act as mixed-type inhibitors but predominantly behave as cathodic inhibitors. The adsorption of EA and FA on mild steel surface follows the Langmuir adsorption isotherm. SEM shows a smoother surface of mild steel in the presence of FA and EA drug in acidic solution. Both the fresh drug and its expired counterpart showed almost similar results in all the studies, thereby verifying the validity of the expired atorvastatin drug as a novel and efficient corrosion inhibitor for mild steel.

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“…Table 3 reveals that there is no significant change in the values of E corr with the inhibitors compared to blank. If the displacement in corrosion potential is more than 0.085 V with respect to corrosion potential of the blank, the inhibitor can be seen as a cathodic or anodic type [37]. In the present case, the maximum displacement occurs in E corr of 0.028 V which is much \0.085 V, suggesting mixed mode of inhibition.…”

Section: Polarization Studymentioning

confidence: 48%

Effect of some peel extracts on the corrosion behavior of aluminum alloy in alkaline medium

Chaubey¹,

Singh²,

Quraishi

2015

Int J Ind Chem

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Introduction The inhibition performance of three peels, for instance Pisum sativum (PS), Solanum tuberosum (ST), and Citrus reticulata (CR), on aluminum alloy (AA) in 1 M NaOH solution was investigated using weight loss, electrochemical impedance spectroscopy (EIS), linear polarization, and potentiodynamic polarization techniques (Tafel). Results It was found that these three peel extracts exhibit very good performance on AA in alkaline medium. PS exhibited maximum inhibition efficiency (g%) of 94.5 % at 1.5 g/L. The effective protection of AA in inhibited system was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). Conclusion The adsorption of inhibitors on AA surface obeyed the Langmuir's adsorption isotherm. Potentiodynamic polarization studies showed mixed mode of corrosion inhibition for all the inhibitors. SEM and AFM complemented well with those obtained from weight loss and electrochemical studies.

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Schiff’s base of pyridyl substituted triazoles as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution

Cited by 381 publications

References 42 publications

Multicomponent Click Synthesis of New 1,2,3-Triazole Derivatives of Pyrimidine Nucleobases: Promising Acidic Corrosion Inhibitors for Steel

Multicomponent Click Synthesis of New 1,2,3-Triazole Derivatives of Pyrimidine Nucleobases: Promising Acidic Corrosion Inhibitors for Steel

Expired atorvastatin drug as corrosion inhibitor for mild steel in hydrochloric acid solution

Effect of some peel extracts on the corrosion behavior of aluminum alloy in alkaline medium

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