Potentiodynamic polarization

In the present study, a complex between 8-hydroxyquinoline and cerium (III) (CeHQ) was synthesized in the presence of triethylamine. Afterwards, the complex was characterized by Field Emission Scanning Electron Microscopy (FESEM), Fourier-transform infrared spectroscopy (FTIR) and Thermo-Gravimetric Analysis (TGA). The inhibition efficiency of the Ce-HQ complex for the corrosion of carbon steel, evaluated by both Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization (PP) plots, reached 90 % after 2 h of immersion in a 0.01 M NaCl solution.

13p dianmotminh02 03-05-2024 7 3   Download

The corrosion inhibition efficiencies of two novel Schiff bases, namely (E)-3-[thiophen-2-lmethyleneamino]benzoic acid (T2YMABA) and (E)-4-(5-[(2-phenylhydrazono) methyl]thiophen-2-yl)benzoic acid (PHMT2YBA) on mild steel (MS) in 1.0M HCl solution has been investigated and compared using electrochemical impedance spectroscopy and potentiodynamic polarization analysis.

10p tocectocec 25-05-2020 19 2   Download

Effect of sodium nitrite on the carbon steel corrosion inhibition in the aerated neutral (pH 7) and alkaline (pH 11) water solutions at temperatures from 30o C to 140o C has been investigated by mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy methods. Sodium nitrite was added in concentrations: 200, 350, 500, 750, 1000, 1500 and 2000 ppm by mass.

6p uocvong04 24-09-2015 34 4   Download