Electrodes and performance analysis of a ceria electrolyte SOFC

被引：54

作者：

Wang, S

Kato, T

Nagata, S

Kaneko, T

Iwashita, N

Honda, T

Dokiya, M

机构：

[1] Nihon Univ, Dept Appl Phys, Setagaya Ku, Tokyo 1568550, Japan

[2] Natl Inst Adv Ind Sci & Technol, Energy Elect Div, Tsukuba, Ibaraki 3058568, Japan

[3] Yokohama Natl Univ, Grad Sch Environm & Informat Sci, Yokohama, Kanagawa 2408501, Japan

来源：

SOLID STATE IONICS | 2002年 / 152卷

关键词：

doped ceria; anode; cathode; local equilibrium; energy conversion efficiency;

D O I：

10.1016/S0167-2738(02)00376-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, the current-voltage characteristic at 700 degreesC across a thin film of Ce0.8Gd0.2O1.9 (CGO) was analyzed by local equilibrium theory. The performance of a Ni-Ce0.8Sm0.2O1.9 (CSO20) anode and a La0.6Sr0.4Co0.8Fe0.2O3-Ce0.8Gd0.2O1.9-Ag (LSCF-CGO-Ag) cathode was studied at 500-700 degreesC by three-probe complex impedance measurements. If the electrodes are used on a thin film of Ce0.8Gd0.2O1.9 (CGO20) electrolyte, the calculation showed that the maximum energy conversion efficiency at 700 degreesC could reach 0.43, where the power density was 0.62 W/cm(2), which is large enough for practical operation. (C) 2002 Elsevier Science B.V. All tights reserved.

引用

页码：477 / 484

页数：8

共 14 条

[1] Optimisation of composite cathodes for intermediate temperature SOFC applications [J].