Single-phase iron-substituted nanocrystalline ruthenium dioxide with composition and of rutile structure was prepared. The electrocatalytic behavior of the prepared materials was tested with respect to oxygen evolution reaction and chlorine evolution reaction (CER) The substitution with iron leads to a slight increase of the material's activity toward oxygen evolution. The selectivity of iron-doped materials in parallel oxygen and chlorine evolution is affected by oxygen content in the electrolyte solution. The CER is preferred in oxygen-free solutions; in oxygen-saturated solutions oxygen evolution is enhanced.
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Macounová et al. (2008) studied this question.
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