Characterization and Comparison of Different Cathode Materials for SC-SOFC: LSM, BSCF, SSC, and LSCF

被引：105

作者：

Rembelski, D. ^{[1
]}

Viricelle, J. P. ^{[1
]}

Combemale, L. ^{[2
]}

Rieu, M. ^{[1
]}

机构：

[1] Ctr SPIN, Dept PRESSIC, ENSMSE, F-42023 St Etienne, France

[2] ICB, F-21078 Dijon, France

来源：

FUEL CELLS | 2012年 / 12卷 / 02期

关键词：

BSCF; Cathode Materials; LSCF; LSM; Single Chamber; Solid Oxide Fuel Cell; SSC; OXIDE FUEL-CELLS; HYDROCARBON-AIR MIXTURES; ELECTROCHEMICAL PROPERTIES; IT-SOFC; PERFORMANCE; ANODE; ELECTROLYTE; TEMPERATURES; METHANE;

D O I：

10.1002/fuce.201100064

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Four cathode materials for single chamber solid oxide fuel cell (SC-SOFC) [La0.8Sr0.2MnO3d (LSM), Ba0.5Sr0.5Co0.8Fe0.2O3d (BSCF), Sm0.5Sr0.5CoO3d (SSC), and La0.6Sr0.4Co0.2Fe0.8O3d (LSCF)] were investigated regarding their chemical stability, electrical conductivity, catalytic activity, and polarization resistance under air and methane/air atmosphere. Electrolyte-supported fuel cells, with Ce0.9Gd0.1O2d (CGO) electrolyte and a Ni-CGO anode, were tested in several methane/air mixtures with each cathode materials between 625 and 725 degrees C. These single cells were not optimized but only designed to compare the four studied cathodes. The decrease of methane-to-oxygen ratio from 2 to 0.67 strongly increased the performance of fuel cells for all cathode materials but the effect of temperature was not always significant. Cells with SSC, BSCF, and LSCF have shown a maximum power density about 20?mW?cm2 while the cell with LSM has given only 5?mW?cm2.

引用

页码：256 / 264

页数：9

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