AC-Impedance measurements on aluminium in chloride containing solutions and below the pitting potential

Frers, S. E.; Stefenel, M. M.; Mayer, C.; Chierchie, T.

doi:10.1007/bf01019578

Cited by 135 publications

(60 citation statements)

References 12 publications

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“…In 1955, Gerischer and Mehl [15] established that the origin of a capacitive or inductive electrode impedance would be the relaxation of the surface coverage by an adsorbed intermediate. But the origin of the inductive loop on aluminum in acid solution is not clear yet.…”

Section: Discussionmentioning

confidence: 99%

Electrochemical impedance spectroscopy analysis on aluminum alloys in EXCO solution

Cao¹,

Zhang²,

Su³

et al. 2005

Materials & Corrosion

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Electrochemical impedance spectroscopy (EIS) of Al-Zn-Mg-Cu alloy in EXCO solution has been investigated. The results show that the impedance spectroscopy of the investigated electrode consists of two capacitive loops in the high and middle frequency domain respectively and an inductive loop in the low frequency domain at the first 30 h of immersion; the inductive arc disappears between 30 h and 60 h while it takes on at the low frequency domain at the last 36 h of the immersion time. A model based on the corrosion mechanism of the aluminum alloy and corroding morphology was proposed and applied to analyze the EIS results.

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Section: Discussionmentioning

confidence: 99%

Electrochemical impedance spectroscopy analysis on aluminum alloys in EXCO solution

Cao¹,

Zhang²,

Su³

et al. 2005

Materials & Corrosion

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“…[3,37,38]. The technique is widely used and because of the similarities of impedance magnitude Bode plots with EN spectral noise plots, EIS can assume an important role in the analysis and comprehension of data from EN.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical noise and impedance study of aluminium in weakly acid chloride solution

Gouveia‐Caridade

Pereira

Brett

2004

Electrochimica Acta

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The electrochemical noise (EN) characteristics of pure aluminium in unbuffered potassium chloride solution and with acetic acid/sodium acetate buffer at pH 5.4 and 4.3 have been analysed to throw light on the influence of pH and of the presence of buffer at the aluminium surface on chloride ion-induced corrosion. Comparison has been made with results obtained by electrochemical impedance spectroscopy (EIS) and quantitative deductions made concerning the values of the noise resistance and the magnitude of the electrochemical impedance. Deviations between results obtained by the two experimental techniques are discussed.

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“…The inductive loop at intermediate frequencies imputed to relaxation of the adsorbed intermediate species (OH -) in the oxide layer, present on the metal surface [30]. The presence of inductive loop is reported in literature [31][32][33][34][35]. The second time constant of LF arises due to the adsorption and incorporation of hydroxide ions into the oxide film [36] The impedance data is best described using an equivalent circuit mode displayed in Fig.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Electrochemical approach of Kalmegh leaf extract on the corrosion behavior of aluminium alloy in alkaline solution

Chaubey¹,

Singh²,

Quraishi

2016

Int J Ind Chem

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Introduction The effect of Kalmegh leaf extract (KLE) on the corrosion behavior of aluminium in 1 M NaOH solution was studied using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) studies.Results Inhibition efficiency (g%) increased with increasing the concentration of extract and maximum inhibition efficiency observed is 82.24 and 82.45% from EIS and PDP studies, respectively, at higher concentration. Conclusion The adsorption of the inhibitor on aluminium surface was in accordance with the Langmuir adsorption isotherm. Potentiodynamic polarization study showed mixed type inhibition with predominantly cathodic effect. SEM and AFM study was carried out to support the experimental inhibition data.

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AC-Impedance measurements on aluminium in chloride containing solutions and below the pitting potential

Cited by 135 publications

References 12 publications

Electrochemical impedance spectroscopy analysis on aluminum alloys in EXCO solution

Electrochemical impedance spectroscopy analysis on aluminum alloys in EXCO solution

Electrochemical noise and impedance study of aluminium in weakly acid chloride solution

Electrochemical approach of Kalmegh leaf extract on the corrosion behavior of aluminium alloy in alkaline solution

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