Comparison of a Cationic Gemini Surfactant and the Corresponding Monomeric Surfactant for Corrosion Protection of Mild Steel in Hydrochloric Acid

Mahdavian, M.; Tehrani‐Bagha, Ali Reza; Holmberg, Krister

doi:10.1007/s11743-011-1252-9

Cited by 54 publications

(25 citation statements)

References 33 publications

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“…The corrosion inhibition efficiencies (η %) of the inhibitors were obtained from Eqn and are listed in Table :

η % = ([], \frac{((), R_{c t italic, i} italic‐ R_{c t italic, b})}{R_{c t italic, i}}) \times 100

where R ct,b and R ct,i are the charge transfer resistances of the samples when immersed in hydrochloric acid solution without and with inhibitors, respectively. The highest corrosion inhibition efficiency 97% obtained in 10 mM indole‐3‐acetic acid contained solution.…”

Section: Resultsmentioning

confidence: 99%

Indole-3-acetic acid and N-acetyltryptophan corrosion inhibition effects on mild steel in 1 M hydrochloric acid solution

Ashhari

Sarabi

2014

Surf. Interface Anal.

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Corrosion inhibition of indole‐3‐acetic acid and N‐acetyl tryptophan on carbon steel was investigated using polarization and electrochemical impedance spectroscopy (EIS). Polarization results revealed that corrosion inhibitors could reduce the rate of cathodic and anodic reactions on metal surface. EIS analysis showed inhibition efficiency of indoles increases by increasing the inhibitor concentration. The maximum inhibition efficiency was 97% and 80% in solutions containing 10 mM indole‐3‐acetic acid and 10 mM N‐acetyl tryptophan, respectively. The adsorption of inhibitors was found to follow Langmuir isotherm. Adsorption and film formation of inhibitors on the metal substrate were confirmed by calculating thermodynamic adsorption parameter (ΔG0ads) and characterization of exposed metals' surface through contact angle measurements. Copyright © 2014 John Wiley & Sons, Ltd.

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“…The corrosion inhibition efficiencies (η %) of the inhibitors were obtained from Eqn and are listed in Table :

η % = ([], \frac{((), R_{c t italic, i} italic‐ R_{c t italic, b})}{R_{c t italic, i}}) \times 100

Section: Resultsmentioning

confidence: 99%

Indole-3-acetic acid and N-acetyltryptophan corrosion inhibition effects on mild steel in 1 M hydrochloric acid solution

Ashhari

Sarabi

2014

Surf. Interface Anal.

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“…A mixture of compound A (3.00 g, 10.44 mmol) and 1-bromotetradecane (8.72 g, 31.49 mmol) in acetone (30 mL) was refluxed for 24 h. After the reaction mixture had cooled to room temperature, the crude product was isolated by filtering and then recrystallized twice from a mixture of acetone and acetonitrile to give 14-DEHA-14 as white crystal (8.04 g, yield 91.60 %). 1 H NMR (400 MHz, CDCl 3 ) d ppm: 0.86-0.89 (t, J = 6.8 Hz, 6H, 2(CH 2 ) 11 CH 3 ), 1.25-1.36 (m, 44H, 2(CH 2 ) 11 CH 3 ), 1.70-1.77 (m, 8H, CH 2 CH 2 CH 2 CH 2 and 2CH 2 CH 2 (CH 2 ) 11 ), 2.44 (m, 4H, 2CH 2 COO), 3.48 (s, 12H, 4NCH 3 ), 3.62-3.66 (t, J = 7.6 Hz, 4H, 2 NCH 2 CH 2 (-CH 2 ) 11 )…”

Section: Synthesis Of 14-deha-14mentioning

confidence: 99%

“…Use of corrosion inhibitors is one of the most convenient means for protecting metals against corrosion, especially in acidic media [1,2]. Most organic corrosion inhibitors interact with the metal surface through heteroatoms, such as nitrogen, oxygen, phosphorus, sulfur, aromatic rings, and multiple bonds, which can markedly change the corrosion resistance of the metal [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Novel Synthesized Gemini Surfactant as Corrosion Inhibitor for Carbon Steel in HCl Solution

Zhang

Pan

Gao

2015

J Surfact & Detergents

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A quaternary ammonium gemini surfactant containing an ester spacer, namely (diethylhexanedioate)diyl-a,x-bis(dimethyl myristyl ammonium bromide) (14-DEHA-14) was synthesized using a two-step procedure with dimethyl hexanedioate, dimethylaminoethanol, and 1-bromotetradecane. The chemical structure of the compound was confirmed by infrared (IR) spectrum, 1 H nuclear magnetic resonance (NMR), and elemental analysis. The critical micelle concentration was determined by conductivity and tensiometry measurements, and its inhibition effect on corrosion of carbon steel in dilute (1.0 M) hydrochloric acid solution was investigated by weight loss measurements. The results show that the synthesized gemini surfactant acts as an excellent corrosion inhibitor in 1.0 M HCl solution. The adsorption of the inhibitor via chemical adsorption onto the carbon steel surface obeyed the Langmuir adsorption isotherm. A possible corrosion mechanism of the compound is discussed in relation to the calculated thermodynamic parameters and adsorption isotherm.

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“…Gemini surfactants [6,7] (a new generation developed in recent years) consist of two hydrophilic groups and two hydrophobic groups that are separated by a rigid or flexible spacer in a molecular structure. It has been demonstrated that the properties of these new surfactants are superior to those of conventional surfactants, and include better solubility in water, better effect in lowering the surface tension of water, more efficient in forming micelles, etc.…”

Section: Introductionmentioning

confidence: 99%

The synergistic inhibition effect between imidazoline-based dissymmetric bis-quaternary ammonium salts and thiourea on Q235 steel in CO2 corrosion process

Ren

Zhang

et al. 2015

Res Chem Intermed

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The inhibition effect of imidazoline-based dissymmetric bis-quaternary ammonium salt (DBA) and Thiourea (TU) on Q235 steel in CO 2 -saturated simulated oilfield-produced water was studied by means of the weight-loss method, polarization and electrochemical impedance spectroscopy (EIS). The polarization measurements reveal that the compound inhibitors are anodic-type inhibitors that mainly inhibit the anodic process. EIS results show that the changes in the impedance parameters are due to the formation of a protective layer on the Q235 steel surface by the adsorption of inhibitor molecules. The results of energy dispersive X-ray spectroscopy and scanning electron microscopy confirm the existence of the protective layer. The results also show that adsorption model obeys to the FloryHuggins adsorption isotherm. The synergism parameter suggests that the synergistic effect is obvious at concentrations of 100 and 200 mg L -1 , and there is a cooperative mechanism between the DBA and TU.

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Comparison of a Cationic Gemini Surfactant and the Corresponding Monomeric Surfactant for Corrosion Protection of Mild Steel in Hydrochloric Acid

Cited by 54 publications

References 33 publications

Indole-3-acetic acid and N-acetyltryptophan corrosion inhibition effects on mild steel in 1 M hydrochloric acid solution

Indole-3-acetic acid and N-acetyltryptophan corrosion inhibition effects on mild steel in 1 M hydrochloric acid solution

Novel Synthesized Gemini Surfactant as Corrosion Inhibitor for Carbon Steel in HCl Solution

The synergistic inhibition effect between imidazoline-based dissymmetric bis-quaternary ammonium salts and thiourea on Q235 steel in CO2 corrosion process

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