Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
180952 | Electrochemistry Communications | 2010 | 4 Pages |
Abstract
Bubble evolution during AC-graining is analysed in combination with the variation of the anodic peaks of the potential and the electrode surface morphology. Aluminium samples are grained in hydrochloric acid in an Inverted Rotating Disk Electrode. A roughness tester is used to characterise the electrode surface, while shadow imaging is applied to determine the bubble size distribution. An interpretation of the correlation existing among bubble size, potential peaks evolution, surface properties and smut layer formation is proposed, which provides insights into the mechanisms involved in bubble formation.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Flora Tomasoni, Heidi van Parys, Herman Terryn, Annick Hubin, Johan Deconinck, Jean-Marie Buchlin, Jeroen van Beeck,