Electrochemical properties of Ba0.5Sr0.5Co0.8Fe0.2O3 and BaZr0.65Ce0.20Y0.15O3 composite cathodes on Y-doped barium-cerium-zirconium oxide solid electrolyte

被引：10

作者：

Seo, Jun ^{[1
]}

Kim, Hye-Won ^{[2
,3
]}

Yu, Ji Haeng ^{[2
]}

Park, Hee Jung ^{[1
]}

机构：

[1] Dankook Univ, Dept Mat Sci & Engn, 119 Dandae Ro, Cheonan 31116, South Korea

[2] Korea Inst Energy Res KIER, 152 Gajeong Ro, Daejeon 34101, South Korea

[3] Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea

来源：

JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2022年 / 59卷 / 02期

关键词：

Composite cathode; Protonic conducting solid electrolyte; Impedance spectroscopy; Cathodic polarization resistance; OXYGEN REDUCTION REACTION; FUEL-CELL; PERFORMANCE; BSCF; LSM;

D O I：

10.1007/s43207-021-00169-7

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：

Various Ba0.5Sr0.5Co0.8Fe0.2O3-BaZr0.65Ce0.20Y0.15O3 composites have been prepared for cathode materials for intermediate-temperature solid oxide fuel cells. Their electrochemical properties on a barium-zirconium-cerate solid electrolyte have been investigated using 2-probe ac impedance measurement. Impedance spectra are measured to investigate their cathodic polarization resistances in cells in a symmetric configuration. The Ba0.5Sr0.5Co0.8Fe0.2O3-BaZr0.65Ce0.20Y0.15O3 composite fired at 900 degrees C shows low polarization resistance of similar to 0.16 Omega.cm(2) at 700 degrees C, which is an improved value over the Ba0.5Sr0.5Co0.8Fe0.2O3 due to enhanced ionic conduction.

引用

页码：217 / 223

页数：7

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