Mild steel corrosion inhibition in 200 ppm NaCl by new surfactants
Mild steel corrosion inhibition in 200 ppm NaCl by new surfactant derivatives of bis-glucobenzimidazolones
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Four new bis-glucobenzimidazolone derivatives have been synthesized and characterized by NMR spectroscopic. They have been tested as corrosion inhibitor for mild steel in 200 ppm NaCl solution using weight loss, potentiodynamic polarization curves and electrochemical impedance spectroscopy measurements. Potentiodynamic polarization curves showed that these compounds were a mixed-type inhibitors. Their inhibition efficiencies improve with concentration and reached a maximum at 10-5 M of each compounds and the 24b is the better. Electrochemical impedance spectroscopy measurements showed that the...
Four new bis-glucobenzimidazolone derivatives have been synthesized and characterized by NMR spectroscopic. They have been tested as corrosion inhibitor for mild steel in 200 ppm NaCl solution using weight loss, potentiodynamic polarization curves and electrochemical impedance spectroscopy measurements. Potentiodynamic polarization curves showed that these compounds were a mixed-type inhibitors. Their inhibition efficiencies improve with concentration and reached a maximum at 10-5 M of each compounds and the 24b is the better. Electrochemical impedance spectroscopy measurements showed that the diagrams composed of two depressed capacitive loop. This loop can be split into two capacities' contributions, although badly separated. The first loop is attributed to the formation of a protective layer and the second is attributed to the charge transfer resistance. With the renaissance of isotherms modeling, there has been a steadily growing interest in this research field. Confirming the assertion, this paper presents a state of art review of some adsorption isotherms modeling, its fundamental characteristics and mathematical derivations. In this way, some isotherms were presented
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