Novel cationic surfactants from fatty acids and their corrosion inhibition efficiency for carbon steel pipelines in 1M HCl

Al-Sabagh, A.M.; Kandil, N. G.; Ramadan, Omaima; M.Amer, Nahed; Mansour, Rawia; Khamis, E.A.

doi:10.1016/j.ejpe.2011.06.007

Cited by 27 publications

(9 citation statements)

References 40 publications

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“…Furthermore, with increase in concentration of inhibitor BN there is no significant shift in the values of either cathodic ( c ) or anodic ( a ) slope which infers the adsorption BN on CRS controls both anodic metal dissolution and cathodic hydrogen evolution processes. Moreover, the value of ΔE corr is within 5-30 mV [11], hence BN act as mixed inhibitor for CRS in 0.5M H 2 SO 4.…”

Section: Resultsmentioning

confidence: 81%

Thermodynamic, adsorption and corrosion inhibitive behaviour of benzyl nicotinate on cold rolled steel in sulphuric acid solution

Mutugadahalli

Thimmappa

2015

J. Electrochem. Sci. Eng.

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The inhibition performance of benzyl nicotinate (BN) on corrosion of cold rolled steel (CRS) in 0.5 M H 2 SO 4 solution has been investigated using weight loss, Tafel polarization and electrochemical impedance spectroscopy (EIS). The BN acts as mixed type inhibitor. The thermodynamic parameters indicate the comprehensive nature adsorption of BN on CRS which obey Langmuir isotherm. Morphological investigation of corrosion inhibition is carried out using AFM and optical microscopic studies support the formation of inhibitor film on CRS. There is a good agreement between the values of weight loss measurements and electrochemical studies.

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Section: Resultsmentioning

confidence: 81%

Thermodynamic, adsorption and corrosion inhibitive behaviour of benzyl nicotinate on cold rolled steel in sulphuric acid solution

Mutugadahalli

Thimmappa

2015

J. Electrochem. Sci. Eng.

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“…Noor and Al-Moubaraki [39] suggested that with an increase in temperature, some chemical changes occur in the inhibitor molecules, leading to an increase in the electron density at the adsorption centers of the molecule, which causes an improvement in inhibition efficiency. Al-Sabagh et al [40] explained that, steel corrosion occurs at the uncovered part of the surface. Thus adsorption of inhibitors was assumed to occur at the higher energy sites.…”

Section: Apparent Activation Energy (E a ) And Pre-exponential Factormentioning

confidence: 99%

“…The presence of inhibitor compounds which result in the blocking of the active sites must be associated with an increase in the activation energy (E a ) of steel in the inhibited sites. The relationships between the temperature dependence of the percentage IE of an inhibitor and the E a can be classified into three groups according to temperature effects [40,41].…”

Section: Apparent Activation Energy (E a ) And Pre-exponential Factormentioning

confidence: 99%

Synthesis and Evaluation of Some Triazole Derivatives as Corrosion Inhibitors and Biocides

Abd-Elaal

Aiad

Shaban

et al. 2013

J Surfact & Detergents

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Three compounds namely; 5‐(phenyl)‐4H‐1,2,4‐triazole‐3‐thiol, 3‐(decylthio)‐5‐phenyl‐1H‐1,2,4‐triazole and 3‐(benzylthio)‐5‐phenyl‐1H‐1,2,4‐triazole) were synthesized. The chemical structure of the prepared compounds was confirmed using FTIR and 1H‐NMR analysis. The compounds were tested as corrosion inhibitors against the corrosion of carbon steel in 1 M HCl using weight loss, polarization and electrochemical impedance methods. The results revealed that these compounds have significant inhibiting effects on the corrosion of carbon steel. Polarization studies showed that the compounds act as mixed‐type inhibitors which retard the anodic and the cathodic reactions with a predominant effect towards the cathodic reaction. The prepared compounds were evaluated as antimicrobial agents against sulfate‐reducing bacteria using the serial dilution method, which showed good biocidal action.

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“…From these factors, it inferred that, DSA acts as mixed type inhibitor, which controls both anodic and cathodic reaction [24]. The corrosion current density (I corr ) value decreases with the increase of inhibitor concentration, indicating the inhibitor controls the charge-transfer reactions occurring on the metal surface [25]. Thus, DSA protects the steel from corrosion by controlling both anodic and cathodic charge transfer process.…”

Section: Cyclic Voltammetric Studiesmentioning

confidence: 99%

Enhancement of ruthenium-promoted Co/CNT nanocatalyst performance using microemulsion technique

Tavasoli¹,

Tabyar²,

Karimi³

2014

International Journal of Industrial Chemistry

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The corrosion inhibition property of electrochemically synthesized 2,2′-disulfanediyldianiline compound was investigated for mild steel in 1 M HCl using electrochemical and weight loss techniques. The morphology of steel surface was examined using SEM and optical microscopy. Thermodynamic parameters were determined and discussed. To study the effect of the molecular structure of inhibitor on its inhibitive performance, quantum chemical studies were performed using density functional theory by B3LYP/6-311G (d,p) basis set. The theoretical studies depicted -N and -S atoms as the adsorption centers in molecule. Graphical abstract

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Novel cationic surfactants from fatty acids and their corrosion inhibition efficiency for carbon steel pipelines in 1M HCl

Cited by 27 publications

References 40 publications

Thermodynamic, adsorption and corrosion inhibitive behaviour of benzyl nicotinate on cold rolled steel in sulphuric acid solution

Thermodynamic, adsorption and corrosion inhibitive behaviour of benzyl nicotinate on cold rolled steel in sulphuric acid solution

Synthesis and Evaluation of Some Triazole Derivatives as Corrosion Inhibitors and Biocides

Enhancement of ruthenium-promoted Co/CNT nanocatalyst performance using microemulsion technique

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