Influence of phosphate species on green rust I transformation and local structure and morphology of γ-FeOOH
Source abstract
Abstract
Abstract To clarify the role of phosphate in the formation of corrosion products, the transformation of GRI(Cl−) with the addition of phosphate was characterized through XRD, TEM, and solution analysis. Electrochemical analysis showed that the transformation of GRI(Cl−) was delayed and the size of the final products, i.e., γ-FeOOH was reduced in the phosphate added case. X-ray absorption spectroscopy indicated that the neighboring Fe–Fe coordination number of FeO6 octahedral unit in γ-FeOOH was decreased. These effects of phosphate are attributed to its adsorption on GRI(Cl−) and nucleated γ-FeOOH that prevented particle growth during oxidation process.
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Research context
OpenAlex topics: Iron oxide chemistry and applications · Magnesium Oxide Properties and Applications · Corrosion Behavior and Inhibition
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