Stability and Performance of YSZ Infiltrated Platinum Electrodes for Sensors and Solid Oxide Cells
Limited electrochemical performance and microstructure instability are crucial problems in Platinum electrodes for solid state electrochemical devices. YSZ infiltration into porous YSZ skeleton is a prospective method to enhance the electrochemical performance and stabilize the microstructure. In this work, the effect of Pt skeleton microstructure on the electrochemical performance and stability of Pt-YSZ electrodes prepared by infiltration was investigated. The electrode polarization resistance of YSZ infiltrated Pt electrode sintered at 800 °C was 0.060 Ohm.cm2 per electrode at 800 °C without degradation during the operation time of 51 hours. Triple phase boundary enhancement by YSZ infiltration and YSZ infiltration into Pt skeleton with smaller particle size resulted in the suppression of the electrochemical process observed at 150 Hz.
A. Buyukaksoy et al., "Stability and Performance of YSZ Infiltrated Platinum Electrodes for Sensors and Solid Oxide Cells," MRS Proceedings, Materials Research Society, May 2013.
The definitive version is available at http://dx.doi.org/10.1557/opl.2013.604
Materials Science and Engineering
Keywords and Phrases
Ionic Conductor; Microstructure; Electrical Properties
Article - Journal
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