Adsorption and corrosion inhibition of new synthesized thiophene Schiff base on mild steel X52 in HCl and H2SO4 solutions

Daoud, Djamel; Douadi, Tahar; Issaadi, Saïfi; Chafaa, Salah

doi:10.1016/j.corsci.2013.10.025

Cited by 277 publications

(77 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results confirm that the A, B and C ligands act via adsorption at metal/solution interface [27,34]. The value of polarization resistance [R p = 241 (Ω cm 2 )] for C at 250 ppm indicates that this Schiff base has good inhibition effects on mild steel, as compared to the Schiff base derived from thiophen [R p = 136.09 (Ω cm 2 )] under similar experimental conditions [35].…”

Section: Electrochemical Impedance Spectroscopy Measurementssupporting

confidence: 85%

Multidentate Schiff bases as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution: an electrochemical and quantum chemical assessment

et al. 2015

View full text Add to dashboard Cite

Section: Electrochemical Impedance Spectroscopy Measurementssupporting

confidence: 85%

Multidentate Schiff bases as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution: an electrochemical and quantum chemical assessment

et al. 2015

View full text Add to dashboard Cite

“…Here, Y 0 is the amplitude comparable to a capacitance, j is the square root of -1, ω is angular frequency (=2f max ) at which the imaginary part of the impedance (-Z im ) is maximal and f max is AC frequency at maximum, n is the phase shift, which can be used as a gauge of the heterogeneity or roughness of the carbon steel surface [26][27][28]. The decrease in double layer capacitance (C dl ) value (Table 3) in presence of PCIP as compared to that in its absence can be attributed to a decrease in the dielectric constant or increase in the thickness of the electrical double layer, which suggests the adsorption of PCIP at the metal/solution interface [29].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

2018

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

The application of expired drugs as corrosion inhibitors provides a cost effective and environmentally benign alternative to otherwise tedious and costly disposal/degradation process. In this context, we have investigated the use of expired Podocip (PCIP) drug as corrosion inhibitor for carbon steel in 1 M HCl by weight loss and electrochemical methods. Polarization curves revealed that the inhibiting action of the PCIP is mixed-type. The adsorption of PCIP on carbon steel surface obeys the Langmuir isotherm. Impedance analysis showed that the presence of inhibitor considerably affects the charge transfer resistance and the double layer capacitance of carbon steel surface. SEM and AFM studies evidenced the formation of a protective film over metal surface.

show abstract

“…The decrease in C dl (double layer capacitance) with increasing the concentration of inhibitor indicating that increase the thickness of electrical double layer which denote the inhibitor molecule function by adsorption at the metal/ solution interface 58 . The value of double layer capacitance are calculated from the frequency at which the imaginary component of impedance is (-Z max ) maximal and R ct value by using following equation 59,37 .…”

Section: Figures 3(a-c) Langmuir Adsorption Isothermmentioning

confidence: 99%

Corrosion Inhibition for Mild Steel in Acidic Medium by Using Hexadecylamine as Corrosion Inhibitor

2017

Chem Sci Trans

View full text Add to dashboard Cite

Abstract:The corrosion study of mild steel in 1.0 M HCl solution at 298, 308 and 318 K using various concentrations of hexadecylamine as corrosion inhibitor for different immersion time were carried out by weight loss technique and other different techniques i.e. Potentiodynamic polarization, Electrochemical impedance spectroscopy (EIS) at 298 K and SEM techniques. The adsorption of this molecule leads to the formation of a protective layer on mild steel. From the weight loss measurement the maximum percentage corrosion inhibition efficiency 96.26% was observed for 1000 ppm concentration of inhibitor at 298 K. By electrochemical impedance study it observed that charge transfer resistance (R ct ) value increases and double layer capacitance (C dl ) value decreases with increasing the inhibitior concentration hence inhibition efficiency increases which related to the charge transfer resistance. From potentiodynamic polarization study it was observed that hexadecylamine behave as mixed type corrosion inhibitor. Adsorption of inhibitor on the mild steel surface is in agreement with the Langmuir adsorption isotherm. From the surface study it can be seen that on increasing the inhibitor concentration there is formation of protective layer on the surface of mild steel to protect the surface against corrosion and surface become smooth and more clean and clear. All above techniques study shows that hexadecylamine is a good corrosion inhibitor for mild steel in 1.0 M HCl solution.

show abstract

Adsorption and corrosion inhibition of new synthesized thiophene Schiff base on mild steel X52 in HCl and H2SO4 solutions

Cited by 277 publications

References 49 publications

Multidentate Schiff bases as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution: an electrochemical and quantum chemical assessment

Multidentate Schiff bases as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution: an electrochemical and quantum chemical assessment

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

Corrosion Inhibition for Mild Steel in Acidic Medium by Using Hexadecylamine as Corrosion Inhibitor

Contact Info

Product

Resources

About