Article ID Journal Published Year Pages File Type
75132 Microporous and Mesoporous Materials 2011 5 Pages PDF
Abstract

Anodization of alloys containing Al, Ni, Co and Fe as main constituents is reported here for the first time for formation of thin film of self-organized magnetic nanoporous structure. Fluoride concentration, anodization potential and the amount of water in the ethylene glycol electrolyte are very critical parameters to produce the well-aligned nanostructure. Further, the presence of Al in the alloy to protect the ferrite nanostructure by controlling the selective dissolution of oxide layers of Ni, Co, Cu was essential.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Anodization of “Alnico” alloy in F− containing aged ethylene glycol electrolyte. ► Formation of self-organized nanoporous thin film of ferrites. ► Critical parameters: F− and H2O content and anodization potential. ► “Al” in the alloy is very essential to protect the ferrite nanostructure.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
Authors
, , , , , , , ,