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Stability and Performance of YSZ Infiltrated Platinum Electrodes for Sensors and Solid Oxide Cells

Published online by Cambridge University Press:  13 May 2013

Aligul Buyukaksoy ,
Vladimir Petrovsky  and
Fatih Dogan
Aligul Buyukaksoy
Affiliation:
Missouri University of Science and Technology, Department of Materials Science & Engineering, 223 McNutt Hall, 1400 N. Bishop Rolla, MO 65409-0340506
Vladimir Petrovsky
Affiliation:
Missouri University of Science and Technology, Department of Materials Science & Engineering, 223 McNutt Hall, 1400 N. Bishop Rolla, MO 65409-0340506
Fatih Dogan
Affiliation:
Missouri University of Science and Technology, Department of Materials Science & Engineering, 223 McNutt Hall, 1400 N. Bishop Rolla, MO 65409-0340506
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Abstract

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.

Keywords

ionic conductormicrostructureelectrical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1542: Symposium G – Electrochemical Interfaces for Energy Storage and Conversion— Fundamental Insights from Experiments to Computations , 2013 , mrss13-1542-g05-22
Copyright
Copyright © Materials Research Society 2013 

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