Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
220912 | Journal of Electroanalytical Chemistry | 2007 | 5 Pages |
Abstract
The electrochemical oxidation of the hydroxide ion was studied on a gold rotating disc electrode (RDE), in aqueous NaOH solutions in the presence of lithium perchlorate as a supporting electrolyte. By potentiodynamic polarization within the limits −1.6 V and +1.6 V vs. SCE, it was demonstrated that the overvoltage of the OH− ion oxidation reaction may be significantly reduced with a 5 min long delay at the vertex cathodic potential of −1.6 V. This finding was explained in terms of the type of gold oxide formed on the gold surface under different experimental conditions.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Andjela Abu-Rabi, Danijela Jašin, Slavko Mentus,