Electronic conduction of the oxide film on passive iron in neutral solutions
โ Scribed by R.V. Moshtev
- Book ID
- 107748537
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 821 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0013-4686
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๐ SIMILAR VOLUMES
Abrtraet-Iron in the passive state in neutral boric-acid-borate solution was anodically oxidixed or cathodicagy reduced in the potential regions of passivity and oxygen evolution. It is shown that the potential of passivated iron is not a single-valued function of the surface tilm thickness but is c
## Abstract The passivating oxide layer on iron grows by transfer of oxygen ions from the solution into the oxide. As expected theoretically, the dissolution rate of iron ions increases with the growth rate of the layer. In neutral solution the current efficiency for oxide growth is larger than in
Abstrac(-Pure iron specimens anodically oxidized at +600 mV (us see) for one minute were partially reduced with a cathodic current of lOpA/crn" and then reoxidized at the same potential for one hour. The experiment was performed in a boric acid/borate buffer solution at pH = 8.43 at room temperature
The growth of passive film on iron has been traced during potential sweep at various sweep rates in a neutral borate solution at pH 8.4. The transient thickness increase from a stationary state at 0.0 V (vs. Ag-AgC1) was measured by automated ellipsometry by which the ellipsometric parameters โข and