Dynamics of the YSZ-Pt interface
β Scribed by L. Bay; T. Jacobsen
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 600 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0167-2738
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β¦ Synopsis
Yttria stabilized zirconia (YSZ)-Pt point electrodes were examined by linear potential sweep, potential step and impedance measurements at IoW'C in air. Inductive loops and hysteresis phenomena with long relaxation times were found. Atomic force microscopy showed changes of the interface between Pt and YSZ induced by the current passage. These changes involve transport of solid and are slow enough to explain the large time constants. The low frequency capacitance and inductive loop forming an entire circle indicate the presence of gas reservoirs at the YSZ-Pt interface.
π SIMILAR VOLUMES
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## Abstract __The electrochemical promotion of the C~2~H~4~+O~2~ reaction to form CO~2~ and H~2~O is studied in the 10^β5^ and 10^β4^ mbar range with a Pt catalyst interfaced as working electrode to yttriumβstabilized zirconia (YSZ). Photoemission electron microscopy (PEEM) was used as spatially re