Specific Adsorption of Halide Ions on Iron Surface: A Combined Electrochemical and Monte Carlo Simulation Investigation
Özet
The specific adsorption effect of halide ions (i.e., Cl-, Br-, I-) on the surface of mild steel in acid media has been explored by electrochemical and Monte Carlo simulating methods. The electrochemical impedance spectroscopy (EIS) and Tafel polarization results demonstated that the mild steel was protected from corrsion to some extent when KX (X=Cl, Br, I) exist. The absorption strength was determined by calculating a customized parameter, namely, adsorption efficiency, which suggest that absorption ability, in descending order of magnitude, was I-, Br-, and Cl-. Moreover, Monte Carlo simulation was employed to look for the most stable adsorption configurations of halide ions onto Fe(110) surface. Our experimental findings were in accordance with the theoretical analysis.
Kaynak
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCECilt
12Sayı
8Koleksiyonlar
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