Composite cathode materials Sm0.5Sr0.5CoO3-La0.6Sr0.4FeO3 for solid oxide fuel cells

被引：10

作者：

Tatko, Maciej ^{[1
]}

Mosialek, Micha ^{[1
]}

Dudek, Magdalena ^{[2
]}

Nowak, Pawel ^{[1
]}

Kedra, Aneta ^{[1
]}

Bielanska, Elzbieta ^{[1
]}

机构：

[1] PAS, Jerzy Haber Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland

[2] AGH Univ Sci & Technol, Fac Energy & Fuels, PL-30059 Krakow, Poland

来源：

SOLID STATE IONICS | 2015年 / 271卷

关键词：

Lanthanum strontium ferrite; Samarium strontium cobaltite; Solid oxide fuel cell; Composite cathode; Samaria doped ceria; Electrochemical impedance spectroscopy; OXYGEN REDUCTION ELECTRODES; IMPEDANCE SPECTROSCOPY; SOFC CATHODE; TEMPERATURE; PERFORMANCE; SM0.5SR0.5COO3-DELTA; REACTIVITY; STABILITY; KINETICS; FERRITE;

D O I：

10.1016/j.ssi.2014.10.011

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 Sm0.5Sr0.5CoO3-La0.6Sr0.4FeO3 (SSC-LSF) composites were tested as cathode materials for the oxygen reduction reaction (ORR) in the half-cells with Sm0.2Ce0.8O1.9 as the electrolyte and gold or silver current collectors, at 500,600 and 700 degrees C, in oxygen and oxygen-argon mixtures. The cathodes with 1:1 weight ratio of SSC and LSF revealed the lowest area specific resistance (ASR) and thermal expansion coefficient of 17.7 x 10(-6) K-1, in the range 30-700 degrees C. Half-cells with silver current collector showed lower ASR in comparison to the half-cells with gold one, which the suggests catalytic effect of silver in ORR. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：103 / 108

页数：6

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