The Influence of Porous Support Morphology on the Electrochemical Performance of Solid Oxide Fuel Cells

被引：1

作者：

Torabi, Alireza ^{[1
]}

Hanifi, Amir Reza ^{[1
]}

Etsell, Thomas H. ^{[1
]}

Sarkar, Partha ^{[2
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

[2] Alberta Innovates Technol Futures, Carbon & Energy Management, Edmonton, AB T6N 1E4, Canada

来源：

SOLID OXIDE FUEL CELLS 12 (SOFC XII) | 2011年 / 35卷 / 01期

关键词：

STABILIZED ZIRCONIA; MICROSTRUCTURE; ANODES;

D O I：

10.1149/1.3570026

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The impact of porous support morphology on the electrochemical performance of symmetrical cathode cells was investigated. Controlling YSZ particle size, pore former content and sintering temperature, the total volume fraction of open porosity was identically kept in the range of 50-55% for all the cells. The influence of size, connectivity and distribution of the pores as well as the configuration of YSZ particles on the ohmic and polarization resistance of the cathode were studied using ac impedance spectroscopy. It was found that a calcined YSZ-based structure had the most uniform morphology. Low temperature sintered cells with an as received YSZ-based structure, however, exhibited the lowest polarization resistance. The significance of using calcined YSZ-based structures in practical development of porous YSZ supports is discussed.

引用

页码：499 / 509

页数：11

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