Redox reactions at FeOOH deposition layers

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Abstract

FeOOH deposition films were formed on gold electrodes by polarization in an electrolyte containing Fe2+. The time dependence of the formation current suggests a diffusion-controlled formation process. The oxidation of Fe(CN)64- at FeOOH films shows no Tafel-like behavior. It is assumed that the Fe2+ to form the film, as well as the Fe(CN)64- to be oxidized, have to diffuse through an adherent, strongly hydrous layer of Fe(OH)3 to the surface of FeOOH.

Original languageEnglish
Pages (from-to)345-351
Number of pages7
JournalJournal of Electroanalytical Chemistry
Volume136
Issue number2
DOIs
StatePublished - 25 Jun 1982
Externally publishedYes

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