Electrochemical Growth of Diverse Iron Oxide (Fe[sub 3]O[sub 4], α-FeOOH, and γ-FeOOH) Thin Films by Electrodeposition Potential Tuning

Magnetite, goethite, and lepidocrocite thin films have been electrochemically grown on titanium substrates by the anodic oxidation of ferrous ions in a , pH 6.0, aqueous solution. It is demonstrated that the deposition potential can be used as a tool to tune the obtainment of the different pure phases of the iron oxide-oxyhydroxides thin films. Results of an exhaustive structural characterization, a morphological study, and X-ray photoelectron spectroscopy characterization are presented.