Evaluation of cysteine as environmentally friendly corrosion inhibitor for copper in neutral and acidic chloride solutions

Ismail, Khaled M.

doi:10.1016/j.electacta.2007.02.053

Cited by 288 publications

(115 citation statements)

References 35 publications

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“…Other work that can be mentioned is the publication of Rosliza and Wan Nik 30 in 2009, who reported that cassava starch could improve the corrosion resistance of an aluminum alloy in seawater. It should be mentioned that in most of the works dealing with natural products as corrosion inhibitors, tests have been performed under acid conditions, and significantly less work has been published about the use of natural compounds in neutral-alkaline solutions 1,2,8,10,29 . More recently, we have reported that modified cassava starches exhibit corrosion inhibitive properties for carbon steel in a solution that simulates the chemical composition of tap water [31][32][33] .…”

Section: Introductionmentioning

confidence: 99%

“…Initial interest in "green inhibitors" began in the 1990s; since then, there has been an increasing research activity on the inhibitive properties of eco-friendly and harmless compounds. In this sense, some authors have reported the use of tannins, amino acids, vitamins, proteins, polymers, and phosphono compounds as corrosion and scaling inhibitors [1][2][3] to replace toxic metal cations, phosphates, and polymers having a low biodegradability level 1,[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] . Unfortunately, these last compounds are still used because they are effective at relatively low cost.…”

Section: Introductionmentioning

confidence: 99%

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Modified cassava starches as potential corrosion inhibitors for sustainable development

et al. 2013

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Activated (AS) and carboxymethylated (CMS 0.24 ) cassava starch derivatives were studied as corrosion inhibitors for carbon steel XC35 in a 200 mgL -1 NaCl solution. They were characterized by back titration and Fourier Transform Infrared Spectroscopy (FTIR). Electrochemical techniques were used to evaluate the inhibitive properties of starches at room temperature and the chemical composition of the protective films was determined by X-Ray Photoelectron Spectroscopy (XPS). Electrochemical measurements revealed that AS acts as mixed inhibitor, whereas CMS 0.24 mainly inhibits the anodic reaction. In both cases, the protection increased with the inhibitor concentration; nevertheless, after 24 hours of immersion, the CMS 0.24 loses its properties, while AS molecules still maintains them. XPS analyses show that the inhibitive films are composed of an iron oxide/hydroxide mixture in which starch molecules are incorporated. Results were explained taking into consideration the hydrophilicity and the strength of the ionic interaction of the starches with the metal surface.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modified cassava starches as potential corrosion inhibitors for sustainable development

et al. 2013

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“…In order to achieve this aim, the application of inhibitors is one of the effective approaches to solving the corrosion problems of copper and its alloys. Currently, the most extensive study is choosing proper organic compounds as corrosion inhibitors, such as azoles [4], amines [5] and amino acids [6]. However, most of these corrosion inhibitors are toxic or have an unpleasant smell.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Analysis of Complex Barrier Layer of Heterocyclic and Long-Chain Organosilane on Copper Alloy Surface

Zhao

Tang

Dang

et al. 2016

Metals

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Abstract:A single electrodeposited film of 6-(3-triethoxysilylpropyl)amino-1,3,5-triazine-2,4-dithiol monosodium (TES) on a copper alloy surface was prepared by the galvanostatic method, then octyl-triethoxysilane (OTES) or hexadecyl-trimethoxysilane (HDTMS) was used to modify the electrodeposited film by the self-assembled technique to fabricate the complex film. The electrodeposition process was inferred by cyclic voltammetry. The single and complex films were characterized by means of contact angle, cyclic voltammetry, Fourier transform infrared spectroscopy (FT-IR), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM). The results showed that the contact angle of the complex film covering the copper alloy surface was up to 118.1˝compared with 89.4˝of the bare copper alloy. The cyclic voltammogram, polarization curves and EIS indicated that the anti-corrosion performance of complex film was better than that of single electrodeposited TES film, and the protection efficiency was up to 90.2%.

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“…In spite of the relatively noble potential of copper, its corrosion takes place at a significant rate in sea water and chloride environments [1][2][3][4][5][6][7][8][9][10][11][12][13]. It is generally accepted that the anodic dissolution of copper in chloride environments is influenced by the chloride ions concentration.…”

Section: Introductionmentioning

confidence: 99%

Determination of Trace Metals by Differential Pulse Voltammetry at Chitosan Modified Electrodes

Martínez‐Huitle¹,

Fernandes²,

Cerro‐López³

et al. 2010

Port. Electrochim. Acta

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The inhibition of copper corrosion in 3.5% NaCl solution has been studied at 25 o C using three inhibitors: 1-phenyl-2,4-dithiobiuret(Inh I), 1-p-methoxyphenyl-2,4-dithiobiuret(Inh II) and 1-p-chlorophenyl-2,4-dithiobiuret(Inh III). The inhibition efficiencies of these compounds have been evaluated by weight loss and electrochemical methods (impedance spectroscopy and polarisation curves). The surface study was done by using SEM and ESCA techniques. The inhibition efficiencies of the inhibitors follow the sequence Inh II > Inh I > Inh III. The inhibitors Inh I, Inh II and Inh III appear to inhibit corrosion process through the formation of a protective film which was found to consist of Cu(I)-inhibitor complex, cuprous chloride CuCl or CuCl 2 -complex ions or both on the surface. .

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Evaluation of cysteine as environmentally friendly corrosion inhibitor for copper in neutral and acidic chloride solutions

Cited by 288 publications

References 35 publications

Modified cassava starches as potential corrosion inhibitors for sustainable development

Modified cassava starches as potential corrosion inhibitors for sustainable development

Preparation and Analysis of Complex Barrier Layer of Heterocyclic and Long-Chain Organosilane on Copper Alloy Surface

Determination of Trace Metals by Differential Pulse Voltammetry at Chitosan Modified Electrodes

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