Insights into corrosion inhibition mechanism of mild steel in 1 M HCl solution by quinoxaline derivatives: electrochemical, SEM/EDAX, UV-visible, FT-IR and theoretical approaches

Ouakki, M.; Galai, M.; Benzekri, Zakaria; Verma, Chandrabhan; Ech–chihbi, E.; Kaya, Savaş; Boukhris, Saı̈d; Ebenso, Eno E.; Touhami, M. Ebn; Cherkaoui, Mohammed

doi:10.1016/j.colsurfa.2020.125810

Cited by 61 publications

(8 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In both cases, we noticed the existence of a band between 400 and 480 cm −1 which corresponds to the Fe-O bond of the oxides formed on the carbon steel surface [36]. According to these results from infrared spectroscopy (FTIR), the PTCa is adsorbed on the steel surface by forming a protective layer [43,44], which affirms the results found by scanning electron spectroscopy (SEM) and energy dispersive spectroscopy EDS.…”

Section: Ft-irsupporting

confidence: 74%

Synthesis, Characterization and Evaluation of Apatitic Tricalcium Phosphate as a Corrosion Inhibitor for Carbon Steel in 3 wt% NaCl

et al. 2021

Self Cite

View full text Add to dashboard Cite

In this study, we did the synthesis of apatitic tricalcium phosphate, which was characterized by Chemical Analysis, Fourier-Transform Infrared Absorption Spectroscopy and X-Ray Diffraction. The product obtained is apatitic tricalcium phosphate PTCa with the chemical formula Ca 9 (HPO 4 )(PO 4 ) 5 (OH) and a Ca/P ratio equal to 1.5. We evaluated the inhibitory power of PTCa on carbon steel in a NaCl 3 wt% medium by different electrochemical techniques: Stationary polarization, Electrochemical impedance spectroscopy. The results obtained revealed that the apatitic tricalcium leads to a systematic decrease in the kinetics of steel corrosion processes. This decrease depends on the concentration of the compound, the temperature and the immersion time. It reaches 87% for a concentration of 200 ppm. Thermodynamic parameters of the activation process and metal dissolution were calculated and discussed.

show abstract

Section: Ft-irsupporting

confidence: 74%

Synthesis, Characterization and Evaluation of Apatitic Tricalcium Phosphate as a Corrosion Inhibitor for Carbon Steel in 3 wt% NaCl

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The approximate values of n (close to unity) revealed that the electric double layer in the current investigation performed like a pseudo-capacitor type. 60,61 As the concentration of PhODB , BODB , or DODB increases, the phase angle becomes wider due to the high frequency, as plotted in Fig. 8.…”

Section: Resultsmentioning

confidence: 95%

Corrosion mitigation for steel in acid environment using novel p-phenylenediamine and benzidine coumarin derivatives: synthesis, electrochemical, computational and SRB biological resistivity

Elaryian

Bedair

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…It is reasonable for Q to have such strong absorption in the aforementioned wavelengths since its structure contains conjugate system and benzene ring. [ 58,59 ] Under Na + condition, a new absorption peak of Q appears at 264 nm in reduction reaction and such peak gradually strengthens as the reduction proceeds (Figure 5b). This result indicates in the process of Q generating Q 2− after gaining electrons, the transition of electrons occurs and new product is formed.…”

Section: Resultsmentioning

confidence: 99%

Effect of Ion Species on Quinoxaline Reaction and Its Application in Nonaqueous Redox Flow Batteries

Zhou

Chen

2023

Energy Tech

View full text Add to dashboard Cite

Quinoxaline (Q) is an excellent candidate for anolyte active materials in nonaqueous redox flow batteries (NRFBs) because of its high solubility, low‐reaction potential, and two transfer electrons in organic solvents. However, systematic and in‐depth studies on the electrochemical performance of Q under nonaqueous conditions are still needed. Herein, a systematical study is conducted on the effect of ion species on Q reaction in nonaqueous solvent acetonitrile through a combination of electrochemical measurements and theoretical analysis. In accordance with the rotating disk electrode analysis, the diffusion coefficients of Q under Na+ and tetrabutylammonium (TBA)+ conditions reach 5.031 × 10−6 and 8.563 × 10−6 cm2 s−1, respectively, and the kinetic rate constants are 7.81 × 10−3 and 4.76 × 10−3 cm s−1, respectively. According to in situ UV–vis analysis, Q presents the best electrochemical reversibility under tetrabutylammonium hexafluorophosphate (TBAPF6) and a low‐reaction potential of −1.98 V versus Ag/Ag+, making it a very promising anolyte active material. By coupling with the 1,4‐di‐tert‐butyl‐2,5‐bis (2‐methoxyethoxy)benzene (DBBMEB) catholyte, the DBBMEB‐Q NRFB, which the battery voltage reaches above 2.5 V under both Na+ and TBA+ conditions, is demonstrated. The methodology adopted in this work provides a design method for the high‐voltage and high‐energy‐density redox flow batteries.

show abstract

Insights into corrosion inhibition mechanism of mild steel in 1 M HCl solution by quinoxaline derivatives: electrochemical, SEM/EDAX, UV-visible, FT-IR and theoretical approaches

Cited by 61 publications

References 82 publications

Synthesis, Characterization and Evaluation of Apatitic Tricalcium Phosphate as a Corrosion Inhibitor for Carbon Steel in 3 wt% NaCl

Synthesis, Characterization and Evaluation of Apatitic Tricalcium Phosphate as a Corrosion Inhibitor for Carbon Steel in 3 wt% NaCl

Corrosion mitigation for steel in acid environment using novel p-phenylenediamine and benzidine coumarin derivatives: synthesis, electrochemical, computational and SRB biological resistivity

Effect of Ion Species on Quinoxaline Reaction and Its Application in Nonaqueous Redox Flow Batteries

Contact Info

Product

Resources

About