Inhibitory action of 8-HYDROXYQUINOLINE on the copper corrosion process

Cicileo, G. P.; Rosales, B.M.; Varela, F.E.; Vilche, J. R.

doi:10.1016/s0010-938x(98)00090-0

Cited by 85 publications

(36 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A depressed semicircle with its center below the real axis was observed. This phenomenon is known as the dispersing effect [23]. As for cysteine, the corrosion behavior of copper in this solution was influenced, to some extent, by mass transport since the Warburg impedance plot was observed in the low frequency region.…”

Section: Electrochemical Impedance Measurementsmentioning

confidence: 93%

Inhibition of copper corrosion in aerated hydrochloric acid solution by amino-acid compounds

2005

View full text Add to dashboard Cite

The effect of two amino-acid compounds, DL-alanine and DL-cysteine, on copper corrosion in an aerated 0.5 mol l )1 HCl solution was studied by weight-loss measurements, potentiodynamic polarisation curves, and electrochemical impedance spectroscopy. A conventional benzotriazole (BTA) inhibitor was also tested for comparison. DL-cysteine was shown to be the most effective inhibitor among those tested inhibitors. Potentiodynamic polarisation results revealed that both the DL-alanine and DL-cysteine acted as an anodic inhibitor; however, DL-cysteine, in particular, was more effective, as it strongly suppressed anodic current densities. The improved inhibition efficiency of DLcysteine in the 0.5 mol l )1 HCl solution was due to its adsorption on the copper surface via the mercapto group in its molecular structure.

show abstract

Section: Electrochemical Impedance Measurementsmentioning

confidence: 93%

Inhibition of copper corrosion in aerated hydrochloric acid solution by amino-acid compounds

2005

View full text Add to dashboard Cite

show abstract

“…The inhibiting activity of quinolines has been studied for copper and aluminum corrosion. [22][23][24] 8HQ Figure 6. Long-term corrosion test: aluminum alloy covered by the polyelectrolyte/inhibitor coating (left) and unmodified aluminum plate (right).…”

mentioning

confidence: 99%

“…was found to prevent the adsorption of chloride ions and, thus, improves the corrosion resistance owing to the formation of an insoluble chelate of aluminum that protects the oxide film. [23,24] Either mechanical (mechanical scratch) or chemical (polymer swelling due to changes of local pH) rupture of the polymer film causes release of the encapsulated inhibitor, which occurs in the damaged part of the metal surface. Therefore, the inhibitor release occurs in response to corrosion attack.…”

mentioning

confidence: 99%

Self‐Healing Anticorrosion Coatings Based on pH‐Sensitive Polyelectrolyte/Inhibitor Sandwichlike Nanostructures

et al. 2008

View full text Add to dashboard Cite

An anticorrosion layer of a smart polymer coating is developed. The nature and properties of the coating simultaneously provide three mechanisms of corrosion protection: passivation of the metal degradation by controlled release of an inhibitor, buffering of pH changes at the corrosive area by polyelectrolyte layers, and self-curing of the film defects due to the mobility of the polyelectrolyte constituents in the layer-by-layer assembly.

show abstract

“…Further, the inhibiting action of 8-hydroxyquinoline on copper substrates, because of the formation of a protective film composed of Cu(II)-8-hydroxyquinoline complexes, has been described previously. [16] 8-Hydroxyquinoline has also been studied as a corrosion inhibitor for AA 2024-T3 substrates in 0.05 M NaCl solution. [3] The results from EIS and X-ray photoelectron spectroscopy indicated the formation of a film of insoluble complexes, which acted as a protective layer.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of 2‐mercaptobenzothiazole, 8‐hydroxyquinoline and benzotriazole as corrosion inhibitors on AA 2024‐T3 assessed by electrochemical methods

Balaskas

Curioni

Thompson

2015

Surface & Interface Analysis

View full text Add to dashboard Cite

In this study, the effectiveness of 2-mercaptobenzothiazole (2-MBT), 8-hydroxyquinoline and benzotriazole as corrosion inhibitors for AA 2024-T3 aluminium alloy was evaluated. The corrosion behaviour in the presence of each compound was investigated by image-assisted electrochemical noise analysis, electrochemical impedance spectroscopy, potentiodynamic polarization and the split cell technique. It was found that 2-MBT has superior inhibition properties compared with the other inhibitors. In particular, the specimens immersed in 3.5% NaCl in the presence of 2-MBT displayed high values of noise resistance that were maintained for over 400 h of testing, and high values of low-frequency impedance, measured after immersion for 24 h. The split cell technique and potentiodynamic polarization tests indicated that only 2-MBT decreases significantly both the anodic and the cathodic reaction rates. Scanning electron microscopy observations and energy dispersive X-ray measurements complement the findings from electrochemical measurements indicating that only 2-MBT protects the second phase particles, preventing dealloying, trenching and initiation of corrosion.

show abstract

Inhibitory action of 8-HYDROXYQUINOLINE on the copper corrosion process

Cited by 85 publications

References 11 publications

Inhibition of copper corrosion in aerated hydrochloric acid solution by amino-acid compounds

Inhibition of copper corrosion in aerated hydrochloric acid solution by amino-acid compounds

Self‐Healing Anticorrosion Coatings Based on pH‐Sensitive Polyelectrolyte/Inhibitor Sandwichlike Nanostructures

Effectiveness of 2‐mercaptobenzothiazole, 8‐hydroxyquinoline and benzotriazole as corrosion inhibitors on AA 2024‐T3 assessed by electrochemical methods

Contact Info

Product

Resources

About