Voltammetric Analysis on the Formation of Fe(OH)2 and FeCO3, and on the Reactivity of Passivation of Steel in Carbonate Solutions
| Autor: | J. R. Kish, Akram Alfantazi, Faysal Fayez Eliyan |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Carbon steel Passivation Mechanical Engineering Inorganic chemistry chemistry.chemical_element engineering.material Electrochemistry Oxygen chemistry.chemical_compound chemistry Mechanics of Materials engineering Carbonate General Materials Science Reactivity (chemistry) Cyclic voltammetry Dissolution |
| Zdroj: | Journal of Materials Engineering and Performance. 24:2473-2480 |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-015-1525-y |
| Popis: | This paper examines the simultaneous dissolution and the formation of Fe(OH)2 and FeCO3 in carbonate solutions. It re-evaluates some of the early findings on Fe(OH)2 outlining that it forms with kinetics interfering with that of FeCO3. The formation and electroreactivity of FeCO3 are investigated in detail. The electrochemical significance of the thickness and reactivity of the passive films are linked to the carbonate concentration, cyclic voltammetry scans, and the cathodic reduction of oxygen and water. The cathodic currents were indicative of the thickness and reactivity of the passive films, which increased with the carbonate concentration and higher cycling. |
| Databáze: | OpenAIRE |
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