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The reaction of SeF 6 with Fe and Fe oxide surfaces is investigated as a model of the reduction of aqueous selenate. Polycrystalline iron foils were reacted with gaseous SeF 6 in vacuum and then characterized by X-ray photoelectron spectroscopy. A novel use of electron stimulated desorption was used to determine if any Se F bonds remain following reaction. It was found that SeF ...
In the context of the alkali metal promotion of Si oxidation, various combinations of oxidation processes (pressure and exposure) and potassium coverages on Si(111) have been investigated using XPS. Strong contrasts have been observed between the various cases studied: potassium monolayer, simultaneous oxygen-potassium adsorption, potassium multilayers exposed to high O 2 pressure or low O...
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