All-Perovskite Solid Oxide Fuel Cells, Synthesis and Characterization

被引：1

作者：

Mohammadi, Alidad ^{[1
]}

Wu, Tsung-han ^{[2
]}

Smirnova, Alevtina L. ^{[1
]}

Pusz, Jakub ^{[1
]}

Sammes, Nigel M. ^{[3
]}

机构：

[1] Univ Connecticut, Dept Chem Mat & Biomol Engn, Storrs, CT 06269 USA

[2] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA

[3] Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA

来源：

JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY | 2009年 / 6卷 / 02期

关键词：

solid oxide fuel cell; LSGM; LSCM; synthesis; characterization; DOPED LANTHANUM GALLATE; ION CONDUCTIVITY; CATHODE MATERIALS; LAGAO3; STRONTIUM; ELECTROLYTE; SR; TRANSPORT; ANODE; LSGM;

D O I：

10.1115/1.3080554

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Strontium- and magnesium-doped lanthanum gallate (LSGM) has been considered as a promising electrolyte for solid oxide fuel cell (SOFC) systems in recent years. In this work synthesis, electrochemical properties, phase evolution, and microstructure of an all-perovskite electrolyte-supported SOFC based on La0.75Sr0.25Cr0.5Mn0.5O3 (LSCM) porous anode, La0.8Sr0.2Ga0.7Mg0.3O2.8 (LSGM-2030) electrolyte, and La0.8Sr0.2MnO3 cathode at intermediate temperatures are studied. The phase evolution of synthesized LSGM and LSCM powders has been investigated, and it validates that there is no reaction between LSGM and LSCM at sintering temperature. The characterization study of the synthesized LSGM also indicates that sintering at 1500 degrees C gives higher electrical conductivity compared with the currently published results, while for the pellets sintered at 1400 degrees C and 1450 degrees C the conductivity would be slightly lower. The effects of the firing temperature on the bulk and grain boundary resistivities are also discussed.

引用

页码：0213081 / 0213085

页数：5

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