Fabrication of metal-oxide nano-composite films from aqueous solution by metal-oxide co-electrodeposition
Abstract
Fe-Ce-O films were synthesized by a newly developed electrochemical method called the "metal-oxide co-electrodeposition method", i.e. the simultaneous deposition of Fe and Ce-O from a reaction solution containing FeSO 4, CeCl 3, (NH 4) 2SO 4, and L-ascorbic acid. L-ascorbic acid prevents the oxidation of Fe 2+ to Fe 3+. (NH 4) 2SO 4 acts as the complexing agent for Fe 2+ and was effective in avoiding the precipitation of Fe-OH. Therefore, ferromagnetic Fe and Ce-O coexisted films were successfully formed. The Fe-Ce-O films prepared had a uniform surface. The Fe content in the deposited films was subject to change from 0 to 100 vol% depending on the concentration of the FeSO 4 in the reaction solution. The saturation magnetization of the films fabricated from the reaction solution with (NH 4) 2SO 4 became larger than that of the films prepared from a non-(NH 4) 2SO 4 solution.
- Publication:
-
Journal of Magnetism and Magnetic Materials
- Pub Date:
- May 2006
- DOI:
- 10.1016/j.jmmm.2005.10.118
- Bibcode:
- 2006JMMM..300E.350F
- Keywords:
-
- 81.15.Pq;
- 75.70.-I;
- 75.75.+a;
- Electrodeposition electroplating;
- Magnetic properties of nanostructures