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Nanoporous Materials through Anodizing of Iron in F-containing Organic Electrolytes

A. Jagminas, K. Mažeika, V. Klimas
State research institute Center of physical sciences and technology, LT

Keywords: nanoporous films, iron, hematite, synthesis, characterization


In this brief review, our recent progress in fabrication, characterization and application of thick nanoporous iron anodic films in ethylene glycol and a novel dimethyl sulfoxide (DMSO) electrolyte containing some fluorides will be presented and discussed. We have found that DMSO – H2SiF6 process allow fabrication of extremely thick bi-layered films attaining 50 μm and more. Scanning electron microscopy (SEM), X-ray diffraction, Raman, Mössbauer and Furje-transformed IR spectroscopy, and thermo gravimetric analysis (TGA) have been applied here to detect compositional and structural differences of film layers formed at the metal/film interface and at the surface side before and following calcination to hematite
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