Alginate surfactant derivatives as an ecofriendly corrosion inhibitor for carbon steel in acidic environments

Tawfik, Salah M.

doi:10.1039/c5ra20340f

Cited by 66 publications

(12 citation statements)

References 82 publications

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“…The test was replicated three times and total weight loss was calculated. The corrosion rate R and the inhibition efficiency ( η %) were then calculated using the following equations: 21

R = \frac{W}{At}

η % = \frac{R_{o} - R}{R_{normalo}} \times 100

where W is the average weight loss, A the total area of the specimen, t is immersion time, and R o and R are the values of the corrosion rate without and with addition of the cationic surfactant, respectively. In addition, the minimum inhibitory concentration (MIC) of the synthesized cationic surfactant against the target bacteria was tested.…”

Section: Biocidal Effect Of the Synthesized Surfactants On Srbmentioning

confidence: 99%

Mitigation of eco‐unfriendly and costly microbial induced corrosion using novel synthesized Schiff base cationic surfactants

Kobisy

Nassar

Tawfik

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND Sulfate‐reducing bacteria (SRB) are considered to be the major cause of microbial‐induced corrosion. It contributes to many environmental and other costly industrial problems in the petroleum industry. Thus there is always a great need for producing new efficient biocides and biocorrosion inhibitors. RESULTS In this work, three Schiff base surfactants (coded Q12, Q14 and Q18) were synthesized and characterized using Fourier transform infrared and 1H‐nuclear magnetic resonance techniques. A mixed culture of SRB was collected from an oil field production tank located at the North Bahrya Petroleum Company (NORPETCO), Egypt. The antimicrobial effect of the newly synthesized surfactants was studied against sessile and planktonic SRB over their different growth phases by various methods: viable cell count via most probable number method, estimation of biogenic sulfide concentrations, weight loss of iron coupons in microbial growth medium and biofilm examination on coupon surfaces using scanning electron microscopy. The synthesized surfactants expressed a high inhibition effect on bacterial growth, recording a minimum inhibitory concentration of 750 mg L−1 for Q18 and 1000 mg L−1 for both Q12 and Q14, with a considerable decline in biogenic sulfide productivity from a dose of 500 mg L−1 until complete suppression at a dose of 1000 mg L−1. Also the synthesized surfactants showed an effective metal corrosion inhibition at a concentration of 500 mg L−1. CONCLUSION Schiff base cationic surfactants with long hydrophobic chains can be recommended as biocorrosion inhibitors for industrial application in the petroleum sector. © 2020 Society of Chemical Industry (SCI)

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“…The test was replicated three times and total weight loss was calculated. The corrosion rate R and the inhibition efficiency ( η %) were then calculated using the following equations: 21

R = \frac{W}{At}

η % = \frac{R_{o} - R}{R_{normalo}} \times 100

Section: Biocidal Effect Of the Synthesized Surfactants On Srbmentioning

confidence: 99%

Mitigation of eco‐unfriendly and costly microbial induced corrosion using novel synthesized Schiff base cationic surfactants

Kobisy

Nassar

Tawfik

et al. 2020

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…At this point, the autocatalytic deposition of the Ni-P coating was finished, because of exhausting of all substrates from the microgels. However, the microgels themselves can be an effective inhibitor of steel substrates corrosion [24,25]. The alginate derivatives follow a mixed inhibition mechanism.…”

Section: Svet Analysis Of the Coatingsmentioning

confidence: 99%

“…The alginate may be adsorbed on the cathodic sites of carbon steel, and this inhibits the cathodic hydrogen evolution reaction. On the other hand, -OH groups have lone pairs of electrons and can be adsorbed on the anodic sites, what inhibits the anodic metal dissolution reaction [25]. The corrosion current above active sites was considerably low and did not appear to lead to any further corrosion within the exposure time.…”

Section: Svet Analysis Of the Coatingsmentioning

confidence: 99%

Surface functionalisation by the introduction of self-healing properties into electroless Ni-P coatings

Stankiewicz

Kefallinou

Mordarski

et al. 2019

Electrochimica Acta

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Ni-P\alginate microgels coatings, as potential metallic protective coatings with self-healing properties, were deposited by the electroless method. The alginate microgels contained nickel chloride and sodium hypophosphite. It was proven that the reduction of nickel ions released from the microgels is possible on the steel and NiP coating surface. The self-healing effect of this system was studied by X-ray fluorescence (XRF), chronoamperometry and scanning vibrating electrode technique (SVET). An improved corrosion protection observed here is attributed to the reduction of nickel ions to metallic nickel on the tested surfaces. Differences in the surface concentration of nickel and phosphorous species in the corrosion tested coatings with and without microgels, as evaluated using X-ray Photoelectron Spectroscopy (XPS), provided substantial evidence for the formation of a NiP coating from the compounds included in the microgels.

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“…Because of the presence of chloride anion in oceans, steel is vulnerable to localized corrosion [2,3]. According to different corrosion mechanisms, various methods have been used for metal corrosion prevention including cathodic protection and anticorrosion coatings [4][5][6]. Recently, semiconductors such as TiO 2 have been used for the photocathodic protection of SS.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of tungsten-iron-doped TiO2 nanotubes via anodization: new photoelectrodes for photoelectrochemical cathodic protection under visible light

2019

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The simultaneous doping of tungsten (W) and iron (Fe) into TiO 2 nanotubes (W-Fe-TNTs) has been performed via onestep anodizing in different ratios of W and Fe in this work. The synthesized samples were characterized by the XRD, FE-SEM, EDX-mapping, and UV-Vis techniques which proved the appropriate formation of the doped samples. The photocathodic protection effect of the synthesized samples was also studied using electrochemical measurement techniques including OCP, chronoamperometry and Tafel polarization curves. The experimental results indicated that the samples could protect the 403SS from corrosion very well. The W-Fe-TNT sample with equal percentage of W and Fe showed the best photoelectrochemical anticorrosion effect for stainless steel under visible light illumination.

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Alginate surfactant derivatives as an ecofriendly corrosion inhibitor for carbon steel in acidic environments

Abstract: Biopolymer alginate surfactant derivatives were synthesized and their influences as a novel corrosion inhibitor on carbon steel in 1 M HCl were studied using gravimetric, electrochemical, EDX and SEM techniques.

Cited by 66 publications

References 82 publications

Mitigation of eco‐unfriendly and costly microbial induced corrosion using novel synthesized Schiff base cationic surfactants

Mitigation of eco‐unfriendly and costly microbial induced corrosion using novel synthesized Schiff base cationic surfactants

Surface functionalisation by the introduction of self-healing properties into electroless Ni-P coatings

Fabrication of tungsten-iron-doped TiO2 nanotubes via anodization: new photoelectrodes for photoelectrochemical cathodic protection under visible light

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