Operando kinetics of hydrogen evolution and elemental dissolution Ⅱ: A time resolved mass-charge balance during the anodic dissolution of magnesium with variable iron content
Source abstract
Abstract
The rates of hydrogen evolution, magnesium (Mg) dissolution and electron exchange were monitored individually, in situ, and in real time during anodic and cathodic polarization of Mg in 0.1 M NaCl. Under all conditions, the anodic charge correlated with Mg2+ dissolution while hydrogen formation was independent and led to insoluble Mg(II) formation. Increased iron (Fe) impurity promoted hydrogen evolution, but was not necessary for the negative difference effect. These results suggest that electrochemical dissolution occurred across an intact Mg(II)-based film, while hydrogen evolution occurred in regions where the film breaks down induced by anodic polarization.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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