Formation of Co-Mn composite oxide films from saturated solution.
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Co-Mn Conposite oxide films were formed on stainless steel electrodes by polarizing them slightly cathodically in a dilute aqueous solution containing Co<SUP>2÷</SUP> and MnO<SUB>4</SUB><SUP>-</SUP> ions. The solutions were supersaturated with sparingly soluble compounds, Co<SUB>2</SUB>O<SUB>3</SUB> and MnO<SUB>2</SUB>, which were produced as a result of the redox reaction between Co<SUP>2+</SUP> and MnO<SUB>4</SUB><SUP>-</SUP> ions. Supersaturation was kept during the film formation. The [Mn] / [Co] ratio of the films varied with the concentrations of Co<SUP>2+</SUP> and MnO<SUB>4</SUB><SUP>-</SUP> ions in the solution, the elapsed time from solution preparation, and the electrode potential of stainless steel. This method is applicable to the film formation of sparingly soluble compounds on conductive materials.
- 公益社団法人 日本表面科学会の論文
公益社団法人 日本表面科学会 | 論文
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