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Manov, Stéphan; Noli, F.; Lamazouère, Anne‐Marie; Aries, L.

doi:10.1023/a:1003585816876

Cited by 31 publications

(14 citation statements)

References 16 publications

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“…The polarization curves of the zinc under similar conditions are shown in numerous papers [51][52][53][54]. These curves indicates that the system at )0.975 V has a current density equal to about 2 mA cm À2 .…”

Section: Eis Spectra Simulationsupporting

confidence: 55%

Analysis of an impedance function of zinc anodic dissolution

Giménez-Romero

Garcı́a-Jareño

Vicente

2004

Journal of Electroanalytical Chemistry

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Section: Eis Spectra Simulationsupporting

confidence: 55%

Analysis of an impedance function of zinc anodic dissolution

Giménez-Romero

Garcı́a-Jareño

Vicente

2004

Journal of Electroanalytical Chemistry

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“…[1][2][3][4][5][6][7][8][9][10][11] Primary alkaline batteries and zinc-air cells based on a zinc anode are highly attractive because they are capable of providing attractive discharge capacity with high efficiency. Overcoming zinc anode corrosion in alkaline media without the use of mercury ͑which is considered as a highly efficient zinc corrosion inhibitor 12 ͒, is a major research challenge.…”

mentioning

confidence: 99%

Enhanced Inhibition of Zinc Corrosion in Alkaline Solutions Containing Carboxylic Acid Modified PEG

Auinat

Ein‐Eli

2005

J. Electrochem. Soc.

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The electrochemical behavior of zinc metal in a strong alkaline ͑8.5 M KOH͒ solution in the presence of HCO 2 u CH 2 u ͑OCH 2 CH 2 ͒ u CH 2 u CO 2 H, dicarboxylic acid modified poly͑ethylene glycol͒ ͑PEG͒ was studied. Electrochemical methods ͑linear polarizations and potentiodynamic and potentiostatic techniques͒, spectroscopic ͑Fourier transform IR͒, morphological ͑scanning electron microscopy͒, and imaging studies ͑atomic force microscopy͒ revealed that the ability to inhibit zinc corrosion in the strong alkaline solution with low concentrations ͑between 800 and 2000 ppm͒ of the modified dicarboxylic PEG is enhanced for a short duration and that the anchoring group attached to the zinc metal is only one of the terminating carboxylate anions. The different morphologies developed on the zinc metal during exposure time is a characteristic of the modified carboxylic acid PEG inhibitor.The development and study of organic polymeric inhibitors that are capable of replacing mercury and mercury salts without any degradation of the zinc anode performance or the overall alkaline cell electrochemical characteristics is highly important. 1-11 Primary alkaline batteries and zinc-air cells based on a zinc anode are highly attractive because they are capable of providing attractive discharge capacity with high efficiency. Overcoming zinc anode corrosion in alkaline media without the use of mercury ͑which is considered as a highly efficient zinc corrosion inhibitor 12 ͒, is a major research challenge. Environmental regulations are motivating manufacturers to look for corrosion inhibitors that are environmentally benign, serving as good alternatives to mercury. Thus, the addition of another component, in relatively insignificant and small concentration, capable of reducing the zinc corrosion in alkaline media without compromising cell electrochemical performance, is a necessity.The electrochemical potential of zinc immersed in strong alkaline solution, −1.6 V vs. standard calomel electrode ͑SCE͒, is far below the water reduction potential ͑−0.8 V vs. SCE͒, leading to hydrogen release. 13 Thus, zinc is thermodynamically unstable in alkaline solutions. Water reduction during zinc corrosion in alkaline media, being a primary cathodic reaction, is the key reaction controlling the overall hydrogen gas evolution. Eliminating or minimizing this cathodic process would lead to a substantially reduced corrosion rate of the zinc.The poly͑ethylene glycol͒ ͑PEG͒ family was thoroughly studied, and it was detected that PEG 600 with a carbon chain length of n = 9-11, is the most efficient inhibitor. 8,14-16 Previous works conducted by our group 14-16 and others 17-19 compared the electrochemical behavior of PEGs and other inhibitors, such as ethoxylatedpolyfluoroalcohol, alkyl polyethylene oxide, n = 4 and n = 23, and polyoxyethylene alkyl phosphate ester acid GAFAC RA 600. The organic zinc inhibitors studied in these works share one common feature: they all possess the same backbone tail composed of a poly͑oxyethylene͒ moiety ͑uO u CH 2 u CH ...

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“…Few years back, corrosion inhibition of zinc could be achieved by the chromate treatment. The effluents obtained from this treatment result in more adverse effect on the environment [7][8][9]. Therefore, the environment-friendly corrosion inhibitors have been discovered [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion potential of a pharmaceutical intermediate Floctafenine for zinc in 0.1 M HCl solution

Hebbar¹,

Praveen

Prasanna³

et al. 2015

Int J Ind Chem

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Corrosion inhibition of Floctafenine for zinc in 0.1 M HCl solution was studied using empirical and theoretical methods. Quantum studies have been utilized for studying the interaction between metal and inhibitor. Empirical methods like potentiodynamic polarization and electrochemical impedance spectroscopy were adopted to verify the inhibition efficiency of the inhibitor. Adsorption of the inhibitor follows the Langmuir isotherm. Thermodynamic values show the physical adsorption mechanism of the inhibitor. Activation and thermodynamic parameters explain the corrosion mechanism. The effect of temperature on the corrosion behavior of zinc in the given temperature range 303-333 K was studied and discussed.

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Untitled

Cited by 31 publications

References 16 publications

Analysis of an impedance function of zinc anodic dissolution

Analysis of an impedance function of zinc anodic dissolution

Enhanced Inhibition of Zinc Corrosion in Alkaline Solutions Containing Carboxylic Acid Modified PEG

Anticorrosion potential of a pharmaceutical intermediate Floctafenine for zinc in 0.1 M HCl solution

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