Continuous Studies on Using Camel’s Urine as Nontoxic Corrosion Inhibitor–Corrosion Inhibition of Al–Cu Alloy in Alkaline Solutions

Noor, Ehteram A.; Al-Moubaraki, Aisha H.; Al‐Ghamdi, Azza A.

doi:10.1007/s13369-018-3489-3

Cited by 15 publications

(8 citation statements)

References 48 publications

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“…to improve oil recovery and removal of scales and salt deposits [1][2][3]. These acids cause severe corrosion of the oil well/pipe or such structures made up of carbon steel [4][5][6][7]. To prevent this corrosive attack, the use of organic inhibitors is one of the most prominent methods [8,9].…”

Section: Introductionmentioning

confidence: 99%

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

2018

Int. J. Corros. Scale Inhib.

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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 have investigated the use of expired Podocip (PCIP) drug as corrosion inhibitor for carbon steel in 1 M HCl by weight loss and electrochemical methods. Polarization curves revealed that the inhibiting action of the PCIP is mixed-type. The adsorption of PCIP on carbon steel surface obeys the Langmuir isotherm. Impedance analysis showed that the presence of inhibitor considerably affects the charge transfer resistance and the double layer capacitance of carbon steel surface. SEM and AFM studies evidenced the formation of a protective film over metal surface.

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Section: Introductionmentioning

confidence: 99%

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

2018

Int. J. Corros. Scale Inhib.

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“…Unfortunately, because of the presence of Clions this acid is highly corrosive. The use of organic inhibitors is the most practical and effective method for the protection of ferrous materials [10][11][12][13][14][15][16][17]. Generally, molecules containing nitrogen, sulfur, oxygen and aromatic rings are preferred [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies on Corrosion Inhibition Performance of Phenanthroline for Cast Iron in Acid Solution

Idir¹,

Kellou-Kerkouche

2018

J. Electrochem. Sci. Technol

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The corrosion inhibition of cast iron in 1 M HCl by Phenanthroline (Phen) was investigated using potentiodynamic polarization (PDP) curves, electrochemical impedance spectroscopy (EIS), surface analysis and theoretical calculations. It is found that Phen exhibits high inhibition activity towards the corrosive action of HCl and its adsorption obeys the Langmuir adsorption isotherm model. The results showed that inhibition efficiency increases with Phen concentration up to a maximum value of 96% at 1.4 mM, and decreases slightly with the increase in temperature. The free adsorption energy value indicates that Phen adsorbs on cast iron surface in 1 M HCl via a simultaneous physisorption and chemisorption mechanism. Scanning electron microscopy (SEM) micrographs, atomic force microscopy (AFM) and FTIR analysis confirmed the formation of a protective film on cast iron surface, resulting in the improvement of its corrosion resistance in the studied aggressive solution. Quantum chemical calculations at the DFT level were achieved to correlate electronic structure parameters of Phen molecules with their adsorption mode.

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“…It is required an extreme care to choose the right material to handle this acid by itself, even in relatively dilute concentrations, or in process solutions containing it in appreciable amounts. This acid is well-known for its corrosive capacity towards the most common metals and alloys [8]. One of the most used methods for the protection against corrosion, especially in acidic solutions, is the use of inhibitors [9].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of the Corrosion Inhibition of 4-amino-2-(4-chlorophenyl)-8-(2, 3-dimethoxyphenyl)-6-oxo-2, 6-dihydropyrimido [2, 1-b][1, 3] thiazine-3,7-dicarbonitrile on Carbon Steel in a 1.0 M HCl Solution

Serrar¹,

Larouj²,

Gaz³

et al. 2018

Port. Electrochim. Acta

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The corrosion inhibition of carbon steel in a 1.0 M HCl solution, using 4-amino-2-(4 chlorophenyl)-8-(2,3-dimethoxyphenyl)-6-oxo-2,6-dihydropyrimido [2,1b][1,3]thiazine-3,7-dicarbonitrile (ACMPT) was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and quantum chemical calculations. Polarization curves indicate that the studied compound was acting as a mixed inhibitor with predominant cathodic effectiveness. The inhibition efficiency decreased with an increased temperature, and the thermodynamic and activation parameters obtained from this study were discussed. The adsorption behavior of ACMT follows Langmuir's isotherm. In addition, Density Function Theory (DFT) calculations were performed on the studied molecule. The theoretical parameters obtained from this method are in good agreement with the experimental results.

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Continuous Studies on Using Camel’s Urine as Nontoxic Corrosion Inhibitor–Corrosion Inhibition of Al–Cu Alloy in Alkaline Solutions

Cited by 15 publications

References 48 publications

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

Experimental and Theoretical Studies on Corrosion Inhibition Performance of Phenanthroline for Cast Iron in Acid Solution

Experimental and Theoretical Studies of the Corrosion Inhibition of 4-amino-2-(4-chlorophenyl)-8-(2, 3-dimethoxyphenyl)-6-oxo-2, 6-dihydropyrimido [2, 1-b][1, 3] thiazine-3,7-dicarbonitrile on Carbon Steel in a 1.0 M HCl Solution

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