An experimental and theoretical approach towards understanding the inhibitive behavior of a nitrile substituted coumarin compound as an effective acidic media inhibitor

Fitoz, Alper; Nazır, Hasan; Özgür, Mehtap; Emregül, Emel; Emregül, Kaan C.

doi:10.1016/j.corsci.2017.10.004

Cited by 58 publications

(16 citation statements)

References 93 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Taken together, the variation in β c and β a and the shift in E corr imply that n -Bpys behave as mixed-type inhibitors and act on both the hydrogen evolution reaction and metal dissolution, but with a predominant control of the cathodic reaction. 31,32…”

Section: Results and Discussionmentioning

confidence: 99%

Cationic Gemini Surfactants with a Bipyridyl Spacer as Corrosion Inhibitors for Carbon Steel

Feng

Yin²,

Zhang³

et al. 2018

ACS Omega

View full text Add to dashboard Cite

In this work, cationic Gemini surfactants with different alkyl chain lengths ( n = 8, 10, and 12) and a bipyridyl spacer were synthesized and tested as corrosion inhibitors for carbon steel in 1 M HCl solution. The corrosion inhibition efficiency was determined by weight loss measurement, potentiodynamic polarization, and electrochemical impedance spectroscopy. Results showed that such three inhibitors could effectively inhibit the corrosion of carbon steel in 1 M HCl solution, especially at their low concentrations, while the carbon chain length of Geminis used played a negligible role in the inhibition efficiency. Scanning electron microscopy/energy dispersive X-ray analysis observations demonstrated the formation of a protective inhibitor layer on the carbon steel surface. Additionally, the adsorption of the inhibitor molecules on the carbon steel surface was found to obey the Langmuir isotherm.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Cationic Gemini Surfactants with a Bipyridyl Spacer as Corrosion Inhibitors for Carbon Steel

Feng

Yin²,

Zhang³

et al. 2018

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Therefore, the study of corrosion protection of metals has become a hot issue for anti-corrosion workers [4]. Among them, the addition of corrosion inhibitor is one of the most economical, convenient and practical means to inhibit metal corrosion [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Investigation the Corrosion Inhibition Effect of Itraconazole on Copper in H2SO4 at Different Temperatures: Combining Experimental and Theoretical Studies

et al. 2018

View full text Add to dashboard Cite

The anti-corrosion inhibition effect of itraconazole on copper (Cu) in 0.5 M H2SO4 is observed with variety of experimental methods, including electrochemical measurement, surface morphology analysis, and theoretical calculations. These experimental results all confirm that itraconazole exhibits excellent anti-corrosion performance in the certain temperatures range (298 K–313 K) for copper in sulfuric acid solution. In addition, corresponding adsorption isothermal models were used to fit the adsorption behavior of itraconazole on the copper surface. The results show that the Langmuir adsorption model agrees best with the experimental results. The adsorption of itraconazole on the copper surface belongs to chemical and physical adsorption.

show abstract

“…Weight loss experiment outcomes confirmed that both the compounds resist dissolution of SS in acid solution, IE is increased while increasing the concentration of Schiff base . IE of SS1 & SS2 calculated from weight loss method along with corrosion kinetic criterion such as corrosion potential ( E corr ), corrosion current density ( I corr ), anodic Tafel slope (β a ), cathodic Tafel slope (β c ) and percentage inhibition efficiency was listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Schiff Bases of 2,5‐Thiophenedicarboxaldehyde as Corrosion Inhibitor for Stainless Steel under Acidic Medium: Experimental, Quantum Chemical and Surface Studies

Vikneshvaran

Velmathi

2019

ChemistrySelect

View full text Add to dashboard Cite

Corrosion of stainless steel (SS) under acidic medium were studied with and without the presence of N',N'''-(thiophene-2,5-diylbis(methanylylidene))di(isonicotinohydrazide) (SS1) and 2,2'-(thiophene-2,5-diylbis(methanylylidene))bis(N-phenylhydrazinecarbo thioamide) (SS2). Different techniques like weight loss, potentiodynamic polarization, Electrochemical Impedance Spectroscopy (EIS), Scanning Electron Microscopy (SEM), Fourier Transform Infrared spectroscopy (FT-IR) and Atomic Force Microscopy (AFM) were employed to demonstrate the corrosion inhibitive behaviour of studied Schiff bases. Results of all the experiments proved that SS2 functions as more convincing inhibitor than SS1 under the studied condition. Corrosion inhibition performance of Schiff base with more sulphur atoms (SS2) against corrosion of SS under acidic medium is comparatively high. Theoretical analysis was further implemented to derive various molecular parameters of the Schiff bases. Energy values of molecular orbitals such as E HOMO , E LUMO and ΔE etc. have provided helpful information regarding electron transfer during adsorption of Schiff bases on stainless steel surface.

show abstract

An experimental and theoretical approach towards understanding the inhibitive behavior of a nitrile substituted coumarin compound as an effective acidic media inhibitor

Cited by 58 publications

References 93 publications

Cationic Gemini Surfactants with a Bipyridyl Spacer as Corrosion Inhibitors for Carbon Steel

Cationic Gemini Surfactants with a Bipyridyl Spacer as Corrosion Inhibitors for Carbon Steel

Investigation the Corrosion Inhibition Effect of Itraconazole on Copper in H2SO4 at Different Temperatures: Combining Experimental and Theoretical Studies

Schiff Bases of 2,5‐Thiophenedicarboxaldehyde as Corrosion Inhibitor for Stainless Steel under Acidic Medium: Experimental, Quantum Chemical and Surface Studies

Contact Info

Product

Resources

About