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The anodic iron dissolution in 0.5 moldm -3 perchloric acid (HClO 4 ) was investigated by the electrochemical impedance spectroscopy, the potentiodynamic sweep and the scanning electron microscopy measurements. The anodic polarization behavior of iron in HClO 4 solution showed that the strong current oscillations occurred in a narrow potential region, particularly the...
Hydrogen sulfide (H 2 S) can either accelerate or inhibit corrosion of iron under different experimental conditions. What H 2 S has done to both the anodic iron dissolution and cathodic hydrogen evolution, in most cases, is to have a strong acceleration effect, causing iron to be seriously corroded in acidic medium, but H 2 S can also have a strong inhibition on the iron corrosion...
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