The study of the effect of ethyl (6-methyl-3-oxopyridazin-2-yl) acetate on mild steel corrosion in 1M HCl

Ghazoui, A.; Benchat, N.; El-Hajjaji, F.; Taleb, M.; Raïs, Z.; Saddik, Rafik; Elaatiaoui, A.; Hammouti, B.

doi:10.1016/j.jallcom.2016.09.191

Cited by 75 publications

(29 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The activation parameters (Table 7) such as the energy of activation (E a ), the enthalpy of activation (∆H a ), and the entropy of activation (∆S a ) were evaluated according to the Arrhenius law [47][48][49][50] and the alternative form of the Arrhenius equation (8,9):…”

Section: Kinetic Parameters Of Activationmentioning

confidence: 99%

Synthesis and characterization of new quinoxaline d erivatives of 8- hydroxyquinoline as corrosion inhibitors for mild s teel in 1.0 M HCl medium

Rbaa¹,

Galai²,

Faydy³

et al. 2018

jmes

View full text Add to dashboard Cite

Section: Kinetic Parameters Of Activationmentioning

confidence: 99%

Synthesis and characterization of new quinoxaline d erivatives of 8- hydroxyquinoline as corrosion inhibitors for mild s teel in 1.0 M HCl medium

Rbaa¹,

Galai²,

Faydy³

et al. 2018

jmes

View full text Add to dashboard Cite

“…The transition state equation is used to calculate

{∆ S}^{≠}

(the entropy of activation) and

{∆ H}^{≠}

(the enthalpy of activation) during metal dissolution:

{italicI}_{coor} = \frac{italicRT}{italicNh} exp (\frac{{∆ italicS}^{≠}}{italicR}) exp (- \frac{{∆ H}^{≠}}{RT}),

where h and N are Planck and Avogadro constants, respectively.…”

Section: Resultsmentioning

confidence: 99%

New surfactants N‐alkyl‐N,N‐dimethyl‐N‐(3‐thienylmethylene)ammonium bromides: Preparation and anticorrosion evaluation

Chen

Jiang

Cheng

et al. 2019

Materials & Corrosion

View full text Add to dashboard Cite

A new series of N‐alkyl‐N,N‐dimethyl‐N‐(3‐thienylmethylene)ammonium bromides (designated as NTA‐n, n = 8, 10, 12, 14, and 16) were synthesized. The electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization showed that NTA‐n could protect availably X70 steel from attack of HCl with an inhibition efficiency of about 95%. And the inhibition ability follows the following sequence: NTA‐8 < NTA‐10 < NTA‐12 < NTA‐14 < NTA‐16, suggesting that prolonging alkyl chain may enhance the inhibition capacity of the molecules. Theoretical investigation backs up well the experiment results. The correlation of theoretical calculation with the experiment results illustrated clearly double logarithmic relations between the corrosion current and the computed quantum chemical parameters such as the highest occupied molecular orbital energy ( E HOMO), energy gap (ΔE), molecular volume ( ν), electronegativity ( χ), the total energy of iron crystal with the adsorbed inhibitor molecule ( E total), the interaction energy of Fe (1 0 0) surface and inhibitor molecules ( E inhibitor), while an equation resembling Hammet relation was existed between the corrosion currents and the fraction of electrons transfer (ΔN). These linear correlations suggest the relation of the inhibitor structure with its inhibition activity: long alkyl chain and electron donating groups in NTA‐n will enhance the corrosion efficiency.

show abstract

“…The presence of a single capacitive loop in the impedance diagrams indicates the formation of a protective layer on the metal surface, leading to corrosion inhibition. This capacitive loop is generally attributed to the electronic charge transfer process [26]. From the results shown in Table 5, it can be seen that the charge transfer resistance (Rct) increases with higher inhibitor concentrations, while the double layer capacity (Cdl) decreases.…”

Section: Figure 2 Variation Of Corrosion Rate and Inhibition Efficiementioning

confidence: 87%

“…Table 7 clearly shows that the activation energy (Ea) of the inhibited solution was higher than that of the uninhibited solution. Hence, it can be suggested that the inhibitor molecule (PEED) adsorption onto the C-steel surface in a 1.0 M HCl solution was carried out via physical adsorption [26]. The enthalpies positive sign reflects the endothermic nature of the C-steel dissolution process.…”

Section: Kinetic Parametersmentioning

confidence: 99%

Electrochemical, Quantum Calculations and Monte Carlo Simulation Studies of N1,N2-Bis(1-Phenylethylidene) Ethane-1,2-Diamine as a Corrosion Inhibitor for Carbon Steel in a 1.0 M Hydrochloric Acid Solution

Hajjajia

Belghiti

Drissi

et al. 2019

Port. Electrochim. Acta

View full text Add to dashboard Cite

N1,N2-Bis(1-Phenylethylidene)ethane-1,2-diamine (PEED) was tested as a corrosion inhibitor for C-steel in a 1.0 M HCl solution, by using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results showed that PEED is a very good inhibitor, as its inhibition efficiency reached 93.8 %, with a concentration of 1.0x10 -3 M, at 298 K. Tafel polarization study revealed that PEED acted as a mixed type inhibitor that obeyed Langmuir adsorption isotherm. The thermodynamic activation parameters for the corrosion reaction were calculated and discussed. Quantum chemical parameters and Fukui function were obtained by DMol 3 /GGA/PW91/DNP+ level of theory, which was performed using Materials Studiov 8.0 software from Biovia-Accelrys. Monte Carlo simulation was implemented to search for the equilibrium configurations of the PEED/Fe(111) adsorption system, in a 1.0 M hydrochloric acid solution.

show abstract

The study of the effect of ethyl (6-methyl-3-oxopyridazin-2-yl) acetate on mild steel corrosion in 1M HCl

Cited by 75 publications

References 48 publications

Synthesis and characterization of new quinoxaline d erivatives of 8- hydroxyquinoline as corrosion inhibitors for mild s teel in 1.0 M HCl medium

Synthesis and characterization of new quinoxaline d erivatives of 8- hydroxyquinoline as corrosion inhibitors for mild s teel in 1.0 M HCl medium

New surfactants N‐alkyl‐N,N‐dimethyl‐N‐(3‐thienylmethylene)ammonium bromides: Preparation and anticorrosion evaluation

Electrochemical, Quantum Calculations and Monte Carlo Simulation Studies of N1,N2-Bis(1-Phenylethylidene) Ethane-1,2-Diamine as a Corrosion Inhibitor for Carbon Steel in a 1.0 M Hydrochloric Acid Solution

Contact Info

Product

Resources

About