| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5391185 | Chemical Physics Letters | 2006 | 5 Pages |
Abstract
Oscillations have been first observed during iodide oxidation in alkaline solution on a static platinum electrode, where phase transitions at the interface of electrode/solution are essential. The film formation of solid iodine acts as a negative nonlinear feedback slowing down the iodide oxidation due to its poor conductivity, and oxygen evolution as a positive nonlinear feedback by destroying the iodine film mechanically and by promoting its dissolution through convection mainly via a disproportional reaction. Based on the results of electrochemical experiments and in situ Raman spectroscopy, a tentative mechanism is given concerning the interfacial phase transitions and the disproportional reaction.
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Authors
Shu Chen, Wei Huang, Zhenjiang Niu, Zelin Li,