Author:
Hashimoto Koji,Cohen Morris
Abstract
The effect of pH and added anions such as phosphate, acetate, chloride, or sulfate in perchlorate solutions on the anodic deposition of ferric oxy‐hydroxide films on platinum was studied. In all cases deposition took place by the oxidation of a ferrous species to a ferric film with 100% current efficiency. The growth rate of the film was dependent on the concentration of
FeOH
+
ion which was the depositing species in a ferrous perchlorate solution and in the solutions containing acetate, chloride, or sulfate. In the solution contain‐ing phosphate, the anodic deposition proceeded by the simultaneous oxidation of
FeOH
+
and
FeH
2
PO
4
+
ions to
γ
‐
FeOOH
and
FePO
4
·
2
H
2
O
.
Publisher
The Electrochemical Society
Subject
Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Condensed Matter Physics,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Cited by
50 articles.
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