Space Expansions of the Regular Oxygen Electrode Reaction on YSZ - II Silver Electrodes
Open Access
- 1 January 1995
- journal article
- Published by The Electrochemical Society in ECS Proceedings Volumes
- Vol. 1995-1 (1) , 527-536
- https://doi.org/10.1149/199501.0527pv
Abstract
Measurements have been carried out on micro-electrodes made of in situ solidified silver droplets on YSZ and on silver painted on YSZ / Al2O3 composites. The results show evidence for two electrode reaction mechanisms in parallel. The variations of the corresponding reaction rates as functions of the electrode interface geometry are more complex than the expected simple proportionality to the triple phase line length or to the electrode interface area. Electronic thermoemission may also contribute to the electrode reaction zone expansion over the free electrolyte surface.Keywords
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