Effect of cysteine on the electrochemical behavior of Cu10Ni alloy in sulfide polluted environments: Experimental and theoretical aspects

Nazeer, Ahmed Abdel; Allam, Nageh K.; Fouda, A. S.; Ashour, Eman A.

doi:10.1016/j.matchemphys.2012.06.039

Cited by 37 publications

(15 citation statements)

References 57 publications

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“…Generally, if the displacement in E corr is > 85 mV with respect to E corr in uninhibited solution, the inhibitor can be seen as a cathodic or anodic type inhibitor. [23][24][25][26][27][28][29] In our study, the maximum displacement in E corr is ¹8 mV, which demonstrates that HMTH is a mixed-type inhibitor as most other organic inhibitors in the literature. 30-32 b a and b c both change little, which indicates that the corrosion mechanism does not change in the presence of HMTH 33 and the inhibition of HMTH works by way of geometric blocking effect.…”

Section: Potentiodynamic Polarization Curvesmentioning

confidence: 59%

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Cong

et al. 2015

Electrochemistry

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N′-(4-hydroxy-3-methoxybenzylidene)-2-(5-p-tolyl-1,3,4-thiadiazol-2-ylthio) acetohydrazide (HMTH) was studied as a novel corrosion inhibitor for carbon steel in hydrochloric acid solution by potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), chronoamperometry (CA), cyclic voltammetry (CV) techniques and Quantum chemical calculation. The surface morphology of carbon steel in HCl solution in the absence and presence of HMTH was investigated by scanning electron microscopy (SEM). The mechanism of adsorption was determined from Fourier transform infrared spectroscopy (FTIR) and the potential of zero charge (E pzc ). HMTH was found to be an effective corrosion inhibitor by forming a stable adsorption layer on carbon steel.

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Section: Potentiodynamic Polarization Curvesmentioning

confidence: 59%

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Cong

et al. 2015

Electrochemistry

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“…K, is the equilibrium constant and is a function of energy of adsorption and temperature and is a measure of adsorptive capacity, C is inhibitor concentration, n is positive generally not integer constant determines intensity of adsorption [22], and (h) is surface coverage. Furthermore, this relationship describing the non-ideal and reversible adsorption not restricted to the formation of monolayer.…”

Section: Adsorption Isotherms and Adsorption Considerationsmentioning

confidence: 99%

Kinetics and synergistic effect of iodide ion and naphthylamine for the inhibition of corrosion reaction of mild steel in hydrochloric acid

Khadom

2015

Reac Kinet Mech Cat

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The inhibition of mild steel corrosion in HCl solution by naphthylamine (NA), KI and the synergism of KI with NA was studied at different temperatures using weight loss and electrochemical techniques. Electrochemical techniques show that the NA-KI blend is a mixed-type inhibitor. The inhibition efficiency increases with an increase in inhibitor concentration but decreases with a rise in temperature. The adsorption followed the Freundlich isotherm with negative values of DG 0 ads , suggesting a stable, and spontaneous inhibition process. The maximum blend efficiency was 95 % at high level of concentration and low level of temperature.

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“…HOMO E often expresses the ability of electron donating, and LUMO E often associates with the ability of accepting electrons. 56 The HOMO and LUMO energies and their energy gaps ( quntum g E ) are given in Table 1.…”

Section: Quantum Chemical Calculationmentioning

confidence: 99%

Polyurethanes prepared from isocyanates containing triphenylamine derivatives: synthesis and optical, electrochemical, electrochromic and memory properties

Zhang

et al. 2015

RSC Adv.

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Electrochromic behaviors of PU (M1)-b thin film (in CH 3 CN with 0.1 M LiCO 4 as the supporting electrolyte) at 0.0 V to 1.40 V (insets are the pictures of oxidized PU (M1)-b). Abstract Two novel series of triphenylamine (TPA)-containing aromatic polyurethanes (PUs) were synthesized via polymerization of N', N'-bis (α-naphthyl)-N, N'-bis (4-phenylisocyanate) biphenyl (M1) and N, N'-diphenyl-N, N'-bis (4-phenylisocyanate) biphenyl (M2) with different dihydroxy compounds. The structures of the polymers were characterized by Fourier Transform Infrared(FT-IR) spectroscopy, hydrogen nuclear magnetic resonance ( 1 H-NMR) and carbon nuclear magnetic resonance ( 13 C-NMR); and the thermostability and morphology were studied by 2 thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The molecular weights were measured to be from 1.02 × 10 4 to 1.31 × 10 4 by gel permeation chromatography (GPC). The polymers were coated onto indium tin oxide (ITO) and the electrochromic properties were investigated by using the ultraviolet visible (UV-vis) absorption spectra and cyclic voltammetry (CV). The energy gaps were in the range of 2.21-2.26 eV. The polymer films revealed good stability of the electrochromic characteristics by continuous cyclic scans, with a color changing from neutral yellowish to a blue doped form at applied potentials. Meanwhile, PUs film exhibited non-volatile write-once-read-many-times (WORM) memory behavior in the device resulting from the non-isolated donor-acceptor (D-A).

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Effect of cysteine on the electrochemical behavior of Cu10Ni alloy in sulfide polluted environments: Experimental and theoretical aspects

Cited by 37 publications

References 57 publications

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Kinetics and synergistic effect of iodide ion and naphthylamine for the inhibition of corrosion reaction of mild steel in hydrochloric acid

Polyurethanes prepared from isocyanates containing triphenylamine derivatives: synthesis and optical, electrochemical, electrochromic and memory properties

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