Effect of current-flow treatment on the microstructure and polarization change of cathode of solid oxide fuel cells

被引：11

作者：

Tsukuda, H

Yamashita, A

Hasezaki, K

机构：

[1] Nagasaki R. and D. Center, Technical Headquarters, Mitsubishi Heavy Industries Ltd., Nagasaki-shi 851-03, 5-717-1, Fukahori-machi

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1997年 / 105卷 / 10期

关键词：

SOFC; cathode; microstructure; three phase boundary; polarization; current-flow treatment;

D O I：

10.2109/jcersj.105.862

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In order to study the reaction area of the cathode of solid oxide fuel cells, the changes in microstructure of the cathode with a current-flow treatment were investigated. Cathode samples (La0.9Sr0.1MnO3 + 10 mass% ZrO2) with two different microstructures were prepared. Decrease of cathodic polarization by the current flow treatment was observed. The observations of microstructure change of the cathode suggested that the movement of oxygen ion and vacancy took place at boundary between electrolyte and cathode. The reason of decrease of cathodic polarization by current-dow treatment was discussed.

引用

页码：862 / 866

页数：5