Cationic surfactant as corrosion inhibitor for aluminum in acidic and basic solutions

Al-Rawashdeh, Nathir A. F.; Maayta, A.K.

doi:10.1108/00035590510595157

Cited by 38 publications

(11 citation statements)

References 18 publications

(20 reference statements)

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“…The open-circuit inhibition efficiency for 0.5 Â 10 À3 mol dm À3 CTAC was 40%. In a similar manner to CTAB, the CTAC inhibited the anodic discharge of aluminium [108].…”

Section: Cationic Surfactantsmentioning

confidence: 73%

“…All designs incorporated a nickel-mesh current collector. inhibitor, cetyltrimethylammonium chloride (CTAC), tested in the concentration range, 0.15e1.7 mmol dm À3 , was also poor at inhibition of the open-circuit corrosion of 99.95% Al in 1.5 mol dm À3 NaOH [108]. The open-circuit inhibition efficiency for 0.5 Â 10 À3 mol dm À3 CTAC was 40%.…”

Section: Cationic Surfactantsmentioning

confidence: 99%

“…Cationic surfactants could inhibit this reaction by blocking the cathodic sites on the aluminium [108]. One such cationic surfactant, cetyltrimethylammonium bromide (CTAB) weakly inhibited the corrosion of 99.6% aluminium in 2 mol dm À3 NaOH, with only 14% inhibition efficiency at opencircuit, see Table 4 [109].…”

Section: Cationic Surfactantsmentioning

confidence: 99%

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Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

403

191

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h i g h l i g h t s< Discussion of the rationale to choose a suitable alloy for Aleair battery. < Effect of the properties and preparation route to enhance the oxidation of Al. < Effect of the inhibitors on the anode oxidation in the alkaline electrolyte. This review shows the influence of the materials, including: aluminium alloy, oxygen reduction catalyst and electrolyte type, in the battery performance. Two issues are considered: (a) the parasitic corrosion of aluminium at open-circuit potential and under discharge, due to the reduction of water on the anode and (b) the formation of a passive hydroxide layer on aluminium, which inhibits dissolution and shifts its potential to positive values. To overcome these two issues, super-pure (99.999 wt%) aluminium alloyed with traces of Mg, Sn, In and Ga are used to inhibit corrosion or to break down the passive hydroxide layer. Since high-purity aluminium alloys are expensive, an alternative approach is to add inhibitors or additives directly into the electrolyte. The effectiveness of binary and ternary alloys and the addition of different electrolyte additives are evaluated. Novel methods to overcome the self-corrosion problem include using anionic membranes and gel electrolytes or alternative solvents, such as alcohols or ionic liquids, to replace aqueous solutions. The air cathode is also considered and future opportunities and directions for the development of aluminiumeair cells are highlighted.

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“…The open-circuit inhibition efficiency for 0.5 Â 10 À3 mol dm À3 CTAC was 40%. In a similar manner to CTAB, the CTAC inhibited the anodic discharge of aluminium [108].…”

Section: Cationic Surfactantsmentioning

confidence: 73%

Section: Cationic Surfactantsmentioning

confidence: 99%

See 1 more Smart Citation

Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

403

191

View full text Add to dashboard Cite

show abstract

“…These compounds, in general, are adsorbed onto the metal surface and block the active corrosion sites [9]. Several cationic surfactants have been investigated as corrosion inhibitors for various metals and alloys in acidic media [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Multifunctional Surfactants in Oil‐Field Protection Applications

Negm

Aiad

2007

J Surfact & Detergents

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A series of cationic surfactants was prepared using economical raw materials. The chemical structures of the prepared compounds were confirmed using elemental analysis, FTIR and 1 H-NMR spectra, and melting point determination. The synthesized surfactants were evaluated as oil-field protective additives. In this regard, several surface properties of the synthesized surfactants were studied including surface tension, critical micelle concentration, effectiveness, efficiency, maximum surface excess and minimum surface area. The results obtained from the surface activity measurements were correlated to their chemical structures. The emulsification power measurements for solutions of these surfactants showed their low emulsifying tendency towards paraffin and crude oil. The synthesized surfactants also exhibited high biocidal activity towards gram-positive and gram-negative bacteria and fungi. This activity was increased by increasing the hydrophobic chain length. The corrosion inhibition measurement of these surfactants for mild steel alloys in acidic media using a weight loss technique showed good protection of mild steel alloys against acidic environments. These properties qualify the synthesized compounds as economical oil-field protective additives.

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“…[1] The choice of the inhibitor is based on two considerations: first it could be synthesized conveniently from relatively cheap raw materials, secondly, it contains the electron cloud on the aromatic ring or, the electronegative atoms such as nitrogen and oxygen in the relatively long chain compounds. [2] Heteroatoms such as nitrogen, oxygen, and sulphur are capable of forming coordinate covalent bond with metal owing to their free electron pairs and thus acting as inhibitor.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Some Amino Acid Derived Schiff Bases Bearing Nonionic Species as Corrosion Inhibitors for Carbon Steel in 2N HCl

Negm

Zaki

2009

Journal of Dispersion Science and Technology

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A novel series of nonionic amino acid Schiff-Bases were synthesized and characterized using different spectroscopic tools to elucidate their chemical structures. The surface and thermodynamic properties of these compounds were studied using classical measurements including surface and interfacial tension and emulsification tendency. The surface parameters of these compounds including surface tension, critical micelle concentration (CMC), effectiveness (p cmc ), efficiency (Pc 20 ), maximum surface excess (C max ), and minimum surface area (A min ) showed their good surface activity. Their thermodynamic parameters of adsorption and micellization including free energy change of micellization and adsorption showed their tendency toward adsorption at the interfaces and also micelle formation at lower concentrations. The synthesized compounds were also evaluated as corrosion inhibitors for carbon steel at different doses (400, 200, 100, 50, and 25 ppm) in 2 N HCl using gravimetric technique (weight loss). The results showed that these inhibitors are characterized by very high corrosion inhibition efficiency ranged between 99.93% and 97.98% and low corrosion rates varied between 0.09 mpy and 0.17 mpy for higher doses (400 ppm). The efficiency of inhibition was decreased by increasing the exposure time. The most efficient corrosion inhibitor of the synthesized compounds was the inhibitor which contains polyethylene oxide chain length of 23 EO units and alkyl chain length of 12 methylene groups. The effect of the hydrophobic and hydrophilic chain length in the inhibitor molecules was discussed and rationalized with their inhibition efficiency. The tendency of these inhibitors toward complexation with the transition metals was also discussed in order to explain their higher efficiency.

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Cationic surfactant as corrosion inhibitor for aluminum in acidic and basic solutions

Cited by 38 publications

References 18 publications

Developments in electrode materials and electrolytes for aluminium–air batteries

Developments in electrode materials and electrolytes for aluminium–air batteries

Synthesis and Characterization of Multifunctional Surfactants in Oil‐Field Protection Applications

Synthesis and Characterization of Some Amino Acid Derived Schiff Bases Bearing Nonionic Species as Corrosion Inhibitors for Carbon Steel in 2N HCl

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