Corrosion control of carbon steel in phosphoric acid by purpald – Weight loss, electrochemical and XPS studies

Zarrok, H.; Zarrouk, A.; Hammouti, B.; Salghi, R.; Jama, Charafeddine; Bentiss, Fouad

doi:10.1016/j.corsci.2012.07.018

Cited by 283 publications

(147 citation statements)

References 85 publications

Supporting

Mentioning

142

Contrasting

Order By: Relevance

“…This behavior can be explicated as a result of the replacement process of water molecules during adsorption of SSE on the steel surface [27]. This observation is in agreement with many studies that have been reported by several authors [31][32][33][34][35].…”

Section: Activation Parameters Of the Corrosion Processsupporting

confidence: 82%

Saccocalyx satureioides as corrosion inhibitor for carbon steel in acid solution

et al. 2016

View full text Add to dashboard Cite

The inhibitory effect of the crude ethyl acetate extract of Saccocalyx satureioides was estimated on the corrosion of carbon steel (X52) in 1 M HCl solution sing weight loss measurement, potentiodynamic polarization, electrochemical impedance spectroscopy and scanning electron microscopy techniques. Potentiodynamic polarization curves indicated that the plants extract behaves as a mixed-type inhibitor. The adsorption of the inhibitor on the carbon steel surface was found to follow Freundlich adsorption isotherm. The free energies, enthalpies and entropies for the adsorption and dissolution process were discussed in details. The inhibiting action increases with increasing concentration of the extract. The results obtained show that the extract of the aerial parts of Saccocalyx satureioides could serve as an effective corrosion inhibitor of carbon steel (X52) in hydrochloric acid medium.

show abstract

Section: Activation Parameters Of the Corrosion Processsupporting

confidence: 82%

Saccocalyx satureioides as corrosion inhibitor for carbon steel in acid solution

et al. 2016

View full text Add to dashboard Cite

show abstract

“…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: 81%

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

Cong

et al. 2015

Electrochemistry

View full text Add to dashboard Cite

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.

show abstract

“…The increase in temperature might stimulate larger metal surface kinetic energy, which has an adverse effect on the adsorption process where it weakens the adsorption process and encourage desorption process, hence the equilibrium shift towards desorption 18 . The thermodynamic parameters of the corrosion process were calculated from Arrhenius-type equation [Eq.…”

Section: Eff Ect Of Temperaturementioning

confidence: 99%

Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions

Fouda

Elmorsi

Abou-elmagd

2017

Polish Journal of Chemical Technology

View full text Add to dashboard Cite

The adsorption and the inhibitive properties of methanol extract of Euphorbia heterophylla on copper in 0.5 M HNO 3 have been studied by weight loss method at different temperatures (30-50 o C), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Also, the surface morphology was analyzed by scanning electron microscopy (SEM). It was found that the inhibition effi ciency increases with increasing extract doses and decreased with increasing temperature. The polarization data revealed that this extract acts as mixed type inhibitor. The adsorption process was more favored at lower temperatures with larger negative standard free energy. The extract was adsorbed physically on the copper surface followed Frumkin isotherm.

show abstract

Corrosion control of carbon steel in phosphoric acid by purpald – Weight loss, electrochemical and XPS studies

Cited by 283 publications

References 85 publications

Saccocalyx satureioides as corrosion inhibitor for carbon steel in acid solution

Saccocalyx satureioides as corrosion inhibitor for carbon steel in acid solution

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

Adsorption and inhibitive properties of methanol extract of Eeuphorbia Heterophylla for the corrosion of copper in 0.5 M nitric acid solutions

Contact Info

Product

Resources

About