Performance of intermediate temperature (600-800°C) solid oxide fuel cell based on Sr and Mg doped lanthanum-gallate electrolyte

被引：30

作者：

Gong, Wenquan ^{[1
]}

Gopalan, Srikanth ^{[1
]}

Pal, Uday B. ^{[1
]}

机构：

[1] Boston Univ, Dept Mfg Engn, Boston, MA 02215 USA

来源：

JOURNAL OF POWER SOURCES | 2006年 / 160卷 / 01期

关键词：

intermediate temperature solid oxide fuel cells; materials system; electrical performance;

D O I：

10.1016/j.jpowsour.2006.01.039

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：

The solid electrolyte chosen for this investigation was La0.9Sr0.1Ga0.8Mg0.2O3(LSGM). To select appropriate electrode materials from a group of possible candidate materials, AC complex impedance spectroscopy studies were conducted between 600 and 800 degrees C on symmetrical cells that employed the LSGM electrolyte. Based on the results of the investigation, LSGM electrolyte supported solid oxide fuel cells (SOFCs) were fabricated with La0.6Sr0.4Co0.8Fe0.2O3-La0.9Sr0.1Ga0.8Mg0.2O3 (LSCF-LSGM) composite cathode and nickel-Ce0.6La0.4O2 (Ni-LDC) composite anode having a barrier layer of Ce0.6La0.4O2 (LDC) between the LSGM electrolyte and the Ni-LDC anode. Electrical performances of these cells were determined and the electrode polarization behavior as a function of cell current was modeled between 600 and 800 degrees C. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：305 / 315

页数：11

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