article · Protection of Metals and Physical Chemistry of Surfaces
This study aimed to investigate the corrosion inhibition behavior of zeolitic materials on aluminum in 1 M HCl solution. This investigation used electrochemical methods (polarization curves and electrochemical impedance spectroscopy). Polarization curves indicate that the inhibition mechanism primarily acts as a mixed-type inhibitor, with the corrosion rate of aluminum in 1 M HCl reduced by 99.57% at an inhibitor concentration of 100 ppm. Electrochemical impedance diagrams demonstrate that inhibition occurs through a charge transfer process on a heterogeneous surface across all tested zeolite concentrations. Scanning electron microscopy micrographs revealed that the formed film effectively blocked acid attack through physical and chemical adsorption on the aluminum surface.
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DOI: 10.1134/s207020512570039x
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