Electrochemical fabrication and characterization of lepidocrocite (γ-FeOOH) nanowire arrays

We report on the fabrication of γ-phase iron oxyhydroxide (γ-FeOOH, lepidocrocite) nanowire ( nw) arrays within the alumina pores by electrodeposition. An aqueous solution, friendly to alumina matrix, was generated and applied in this study for uniform deposition of γ-FeOOH nw arrays directly throug...

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Bibliographic Details
Published in:Applied surface science 2010-04, Vol.256 (12), p.3993-3996
Main Authors: Jagminas, A., Mažeika, K., Juška, E., Reklaitis, J., Baltrūnas, D.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Lepidocrocite
Mössbauer spectroscopy
Nanomaterials
Physics
Template synthesis
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Summary:We report on the fabrication of γ-phase iron oxyhydroxide (γ-FeOOH, lepidocrocite) nanowire ( nw) arrays within the alumina pores by electrodeposition. An aqueous solution, friendly to alumina matrix, was generated and applied in this study for uniform deposition of γ-FeOOH nw arrays directly through the alumina barrier layer using an alternating current ( ac) mode. As-deposited nanowired products were characterized using 57Fe Mössbauer spectroscopy (MS), atomic absorption spectrophotometry analysis, field-emission scanning electron microscopy, UV–vis transmission spectroscopy, transmission electron microscopy and X-ray diffraction. The formation of pure lepidocrocite nw arrays in the alumina pores with the average Ø pore of 45 and 150 nm was verified by transmission MS at cryogenic temperatures.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2010.01.064