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An unevenly distributed magnetic field caused irreversible electrochemical states of iron in a sulfuric acid solution due to the undulated surface generated by anodic dissolution. The magnetic field affected the activation-passivation transition threshold by modifying the interface reaction rate and surface morphology. The passivation onset potential was increased by decreasing the scan rate under...
Effects of hydrogen on anodic dissolution and passivation of iron in alkaline solutions are investigated by electrochemical measurements on iron, hydrogen-charged iron and catholically pre-cleaned iron using a Devanathan dual cell. Shifting of open circuit state of iron in bicarbonate solutions from passivity to active dissolution and the appearance of active dissolution range for hydrogen-charged...
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