Abstract
We present a series of experimental results indicating improved oxygen reduction characteristics on nanocrystalline yttria-stabilized zirconia (YSZ) surfaces. We compare (i) cathodic interface impedances on nanocrystalline and microcrystalline YSZ, (ii) oxygen exchange rate on and bulk diffusivity in nano- and single-crystal YSZ, and (iii) bulk and surface conductivities of nano-YSZ. The results collectively indicate that the oxygen reduction/exchange rate is faster on nanocrystalline YSZ than on micro- and single-crystal YSZ, which likely is related to fast oxygen or electronic transport on the surface.
| Original language | English |
|---|---|
| Pages (from-to) | B392-B396 |
| Journal | Journal of the Electrochemical Society |
| Volume | 156 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Electrochemistry
- Materials Chemistry
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Huang, H., Shim, J. H., Chao, C. C., Pornprasertsuk, R., Sugawara, M., Gür, T. M., & Prinz, F. B. (2009). Characteristics of oxygen reduction on nanocrystalline YSZ. Journal of the Electrochemical Society, 156(3), B392-B396. https://doi.org/10.1149/1.3058597