Evaluation of electrode performances of single-chamber solid oxide fuel cells

被引：8

作者：

Hori, M

Nagasaka, K

Miyayama, M

Trunfio, G

Traversa, E

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

[2] Univ Roma Tor Vergata, I-00133 Rome, Italy

来源：

ELECTROCERAMICS IN JAPAN VIII | 2006年 / 301卷

关键词：

single-chamber SOFC; electrode; interfacial resistance; thermal expansion coefficient; catalytic activity;

D O I：

10.4028/www.scientific.net/KEM.301.155

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：

The interfacial resistances of La(1-x)Sr(x)Co(1-y)Fe(y)O(3-delta) (denoted LSCF(10(1-x)/10x/10(1-y)/10y)) cathodes, and the catalytic activities of a Ni-Ce(0.85)Y(0.15)O(1.925) (Ni-YDC) anode and an LSCF(2/8/8/2) cathode of a single-chamber solid oxide fuel cells (SOFCs) were investigated. LSCF cathodes with high oxide ion conductivities gave low interfacial resistances. LSCF cathodes with suitable thermal expansion coefficients formed favorable interfacial structures with a ceria-based electrolyte. Ni-YDC showed a higher conversion efficiency for CH(4) and a lower selectivity for CO(2) than LSCF(2/8/8/2). The single-chamber SOFC based on the Sm-doped ceria electrolyte with the Ni-YDC anode and LSCF(2/8/8/2) cathode showed a maximum power density of 186 mW/cm(2) at 800 degrees C.

引用

页码：155 / 158

页数：4

共 10 条

[1] A NOVEL SOLID OXIDE FUEL-CELL SYSTEM USING THE PARTIAL OXIDATION OF METHANE [J].