Suspension plasma spraying of La0.6Sr0.4Co0.2Fe0.8O3-δ cathodes: Influence of carbon black pore former on performance and degradation

被引：22

作者：

Fan, E. S. C. ^{[1
]}

Kuhn, J. ^{[1
]}

Kesler, O. ^{[1
]}

机构：

[1] Univ Toronto, Dept Mech & Ind Engn, 5 Kings Coll Rd, Toronto, ON M5S 3G8, Canada

来源：

JOURNAL OF POWER SOURCES | 2016年 / 316卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Solid oxide fuel cells; Cathodes; Lanthanum strontium cobalt ferrite; Suspension plasma spraying; Degradation; OXIDE FUEL-CELLS; ELECTROCHEMICAL PERFORMANCE; COMPOSITE CATHODES; LSCF; FABRICATION;

D O I：

10.1016/j.jpowsour.2016.02.075

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：

Suspension plasma spray deposition is utilized to fabricate solid oxide fuel cell cathodes with minimal material decomposition. Adding carbon black as a pore former to the feedstock suspension results in smoother and more porous coatings, but over the range of carbon black concentrations studied, has little impact on the overall symmetrical cell performance. The cathode made with a suspension containing 25 wt% carbon has the highest deposition efficiency and a polarization resistance of 0.062 Omega cm(2) at 744 degrees C. This cathode is tested for 500 h, and it is observed that adding an SDC interlayer between the YSZ electrolyte and the cathode(s) and/or coating the metal substrate with lanthanum chromite decrease the rate of performance degradation. (C) 2016 Published by Elsevier B.V.

引用

页码：72 / 84

页数：13

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