Corrosion inhibition and adsorption behavior of methionine on copper in HCl and synergistic effect of zinc ions

Zhang, Daquan; Cai, Qi-Rui; He, Xian-Ming; Gao, Lixin; Kim, Gui Soon

doi:10.1016/j.matchemphys.2008.10.007

Cited by 106 publications

(31 citation statements)

References 27 publications

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“…These processes are facilitated by the presence of d vacant orbitals of low energy in the copper ions, as observed in transition group metals. Recently, it was found that the formation of donoracceptor surface complexes between free electrons of an inhibitor and a vacant d orbital of a metal is responsible for the inhibition corrosion process [54]. The number of Cu 2+ ions in proximity of copper increases with increasing temperature, leading to the formation of Cu 2+ -inhibitor complexes protective film (increase in surface coverage) which create a physical barrier between Cu surface and the electrolyte, retarding the dissolution of the metal [36].…”

Section: Mechanism Of Inhibitionmentioning

confidence: 99%

Copper Corrosion Inhibition in 1 M HNO3 by Two Benzimidazole Derivatives

Niamien

Kouassi

Trokourey

et al. 2012

ISRN Materials Science

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Corrosion behavior of copper in 1 M nitric acid containing either 2-mercaptobenzimidazole (MBI) or 2-thiomethylbenzimidazole (TMBI) was investigated experimentally and theoretically via weight loss method and quantum chemical approaches. It was found that the two compounds exhibit a very good performance as inhibitors for copper corrosion in the studied medium. Results show that the inhibition efficiencies increase with increasing temperature and increasing concentration of the inhibitors. It has been found that the studied compounds adsorb onto copper according to the modified Langmuir adsorption isotherm and the kinetic/thermodynamic isotherm of El-Awady. The thermodynamic adsorption parameters and kinetic corrosion parameters were determined and analyzed; on the bases of these parameters both physisorption and chemisorption were suggested for the studied compounds. Furthermore, the quantum chemical properties/descriptors most relevant to their potential action as corrosion inhibitors have been calculated. They include E HOMO , E LUMO , energy gap (ΔE), dipole moment (μ), hardness (η), softness (σ), the fractions of electrons transferred (ΔN), electrophilicity index (ω), and the total energy change (ΔE T ). The theoretical results were found to be consistent with the experimental data reported.

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Section: Mechanism Of Inhibitionmentioning

confidence: 99%

Copper Corrosion Inhibition in 1 M HNO3 by Two Benzimidazole Derivatives

Niamien

Kouassi

Trokourey

et al. 2012

ISRN Materials Science

View full text Add to dashboard Cite

show abstract

“…Obtained values of %IE and θ were given in Table 4 at different doses from the PEG. The detected protection action of PEG could be qualified to the adsorption on the α-brass surface (49). The data obtained displayed that the appending of PEG decreased the WL (mg cm −2 ) and the C.R.…”

Section: Mr Measurementsmentioning

confidence: 84%

Adsorption and corrosion inhibition behavior of polyethylene glycol on α-brass alloy in nitric acid solution

Fouda

El–Dossoki

Shady³

2018

Green Chemistry Letters and Reviews

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“…%IE improved with increase the concentration of Rumex vesicarius and with increase in temperature. The %IE is due to the adsorbed Rumex vesicarius extract on the CS and formation of a layer from adsorbed molecules on CS surface which isolates the surface of CS from acidic solution and blocking the sites of corrosion 29 . …”

Section: Resultsmentioning

confidence: 99%

Methanol Extract of Rumex Vesicarius L. as Eco-Friendly Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution

2018

Chem Sci Trans

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Abstract:The inhibiting effect of Rumex vesicarius L. extract on the carbon steel corrosion in H 2 SO 4 was studied by weight loss, potentiodynamic polarization, electrochemical frequency modulation and electrochemical impedance techniques. The efficiency of the extract increased with increasing the extract concentration and with rising the temperature. The E a * (activation energy) and other parameters for the corrosion procedure have also been measured and discussed. potentiodynamic polarization measurements specified that this extract acts as mixed type inhibitor and chemically adsorbed on carbon steel surface following the Temkin isotherm. The data from different tests are in excellent agreement.

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Corrosion inhibition and adsorption behavior of methionine on copper in HCl and synergistic effect of zinc ions

Cited by 106 publications

References 27 publications

Copper Corrosion Inhibition in 1 M HNO3 by Two Benzimidazole Derivatives

Copper Corrosion Inhibition in 1 M HNO3 by Two Benzimidazole Derivatives

Adsorption and corrosion inhibition behavior of polyethylene glycol on α-brass alloy in nitric acid solution

Methanol Extract of Rumex Vesicarius L. as Eco-Friendly Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution

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