Novel quaternary ammonium hydroxide cationic surfactants as corrosion inhibitors for carbon steel and as biocides for sulfate reducing bacteria (SRB)

Badawi, A. M.; Hegazy, M.A.; El‐Sawy, A. A.; Ahmed, Hanan A.; Kamel, W.M.

doi:10.1016/j.matchemphys.2010.06.066

Cited by 141 publications

(66 citation statements)

References 25 publications

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“…Second, the electrostatic interaction occurs between the negative centers on the metal surface and the positively charged head groups of the cationic surfactant molecules (N ? ) [23,24]. As a result, the active centers on the metal surface are blocked and this prevents the acid attack; in addition, the hydrophobic chains form a well-arranged isolating layer that acts as a protective layer for the metal surface from the attack of the acid molecules.…”

Section: Corrosion Inhibition Efficiencymentioning

confidence: 99%

New Schiff Base Cationic Surfactants: Surface and Thermodynamic Properties and Applicability in Bacterial Growth and Metal Corrosion Prevention

Negm

Farargy

Sabagh

et al. 2011

J Surfact & Detergents

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A new series of cationic Schiff bases was synthesized and their chemical structures were confirmed using elemental analysis, infrared spectra and nuclear magnetic resonance. The surface properties of the surfactant solutions including surface tension, effectiveness, efficiency, critical micelle concentration, maximum surface excess and minimum surface area were calculated using surface tension-log concentration profiles. The surface parameters were strongly dependent on the hydrophobic chain length. The thermodynamic properties of the surfactants in their solutions showed the spontaneous behavior of both adsorption and micellization processes. The thermodynamic data revealed that the adsorption of the surfactant molecules at the air/water interface was more favorable than the micellization in the bulk of their solutions. The synthesized surfactants were evaluated with regard to their preventing the corrosion reaction of carbon steel in acidic media and also their acting as antibacterial biocides to inhibit bacterial growth. The data of corrosion and antibacterial evaluations showed the high efficiency and applicability of these compounds in these uses.

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Section: Corrosion Inhibition Efficiencymentioning

confidence: 99%

New Schiff Base Cationic Surfactants: Surface and Thermodynamic Properties and Applicability in Bacterial Growth and Metal Corrosion Prevention

Negm

Farargy

Sabagh

et al. 2011

J Surfact & Detergents

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“…The positive values of DS ads 0 mean that the adsorption process is accompanied by an increase in entropy, as was expected, since the endothermic adsorption process is always accompanied by an increase in entropy, which is the driving force for the adsorption of inhibitor onto the CS surface e.g. DS ads 0 = 110.09, 123.35, and 123.35 J mol -1 K -1 at 25, 45, and 60°C, respectively for G-2 [49].…”

Section: Standard Thermodynamic Adsorption Parametersmentioning

confidence: 53%

Three gemini cationic surfactants as biodegradable corrosion inhibitors for carbon steel in HCl solution

2015

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Three gemini cationic surfactants with different hydrophobic spacer chain lengths were synthesized and characterized. The inhibition effect of N,on the corrosion of carbon steel in 1.0 M HCl solution at 25-60°C was studied by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy. The results show that the synthesized inhibitors are effective inhibitors even at very low concentration, and the adsorption on the carbon steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization curves reveal that the synthesized inhibitors behave as a mixed-type inhibitor. Adsorption of used inhibitors led to a reduction in the double layer capacitance and an increase in the charge transfer resistance. Thermodynamic parameters have been obtained by adsorption theory. Surface activity and corrosion inhibition relationship were discussed. The biodegradability of the synthesized surfactants showed their readily biodegradation in the open environment and were considered as environmentally friendly corrosion inhibitors.

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“…Umumnya membran sel SRB adalah bercas negatif (Alabbas et al 2012). Kewujudan kumpulan berfungsi hidrofilik dengan cas positif pada struktur amonium kuaterner menyebabkan berlakunya interaksi elektrostatik antara molekul ini dengan permukaan membran sel SRB yang boleh mengganggu proses metabolik pada sitoplasma sel dan seterusnya memusnahkan ketelapan membran sel SRB berkenaan (Badawi et al 2010). Keadaan ini menyebabkan pertumbuhan sel tidak dapat berlaku dan penghasilan ion sulfida daripada proses penurunan sulfat dapat dikawal.…”

Section: Keputusan Dan Perbincanganunclassified

Perlindungan Biokakisan Keluli Karbon akibat Bakteria Penurun Sulfat yang Dipencil daripada Minyak Mentah Tropika

Idris

Daud

Mahat

et al. 2016

JSM

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Ancaman biokakisan akibat aktiviti bakteria penurun sulfat (SRB) PENGENALANProses pemindahan minyak mentah kerap dilakukan melalui sistem saluran paip keluli yang terdedah kepada pelbagai persekitaran, termasuk laluan di bawah tanah dan air laut. Keadaan ini telah mengundang pelbagai masalah kakisan pada kedua-dua permukaan luaran dan dalaman paip (Al-Jaroudi et al. 2011). Untuk itu, langkah pengurusan dan pengawalan kakisan dengan menggunakan kaedah seperti saduran cat, perlindungan katodik dan perencat kakisan telah digunakan. Namun kehadiran perbagai mikrobial yang menyebabkan kakisan dalam minyak mentah terutamanya SRB telah meningkatkan lagi tahap kemusnahan bahagian dalaman paip keluli (Abdullah et al. 2014;Stipaničev et al. 2013). Keadaan ini disebabkan aktiviti semula jadi SRB yang berupaya menghasilkan ion sulfida daripada tindak balas penurunan sulfat dan lainlain ikatan sulfur seperti sulfit dan tiosulfat. Tindak balas ion-ion sulfida dengan ion hidrogen terlarut menyebabkan pembentukan sebatian berasid H 2 S yang berbahaya dan toksik. Kehadiran H 2 S bukan sahaja meningkatkan kadar kakisan keluli, malah turut menurunkan kualiti minyak mentah melalui proses pemasaman serta pemendakan

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Novel quaternary ammonium hydroxide cationic surfactants as corrosion inhibitors for carbon steel and as biocides for sulfate reducing bacteria (SRB)

Cited by 141 publications

References 25 publications

New Schiff Base Cationic Surfactants: Surface and Thermodynamic Properties and Applicability in Bacterial Growth and Metal Corrosion Prevention

New Schiff Base Cationic Surfactants: Surface and Thermodynamic Properties and Applicability in Bacterial Growth and Metal Corrosion Prevention

Three gemini cationic surfactants as biodegradable corrosion inhibitors for carbon steel in HCl solution

Perlindungan Biokakisan Keluli Karbon akibat Bakteria Penurun Sulfat yang Dipencil daripada Minyak Mentah Tropika

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