Fuel-flexible operation of a solid oxide fuel cell with Sr0.8La0.2TiO3 support

被引：104

作者：

Pillai, Manoj R. ^{[1
,2
]}

Kim, Ilwon ^{[2
]}

Bierschenk, David M. ^{[1
]}

Barnett, Scott A. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] Funct Coating Technol, Evanston, IL 60201 USA

来源：

JOURNAL OF POWER SOURCES | 2008年 / 185卷 / 02期

关键词：

Strontium titanate; Solid oxide fuel cell; Ni-YSZ anode; Redox cycling; Sulfur tolerance; Natural gas;

D O I：

10.1016/j.jpowsour.2008.07.063

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：

Solid oxide fuel cells with Sr0.8La0.2TiO3 anode-side Supports, Ni- Sm-doped ceria adhesion layer, NiY2O3 -stabilized ZrO2 (YSZ) anode active layer, YSZ electrolyte, and La0.8Sr0.2MnO3(LSM)-YSZ cathode are described. These cells are stable in simulated natural gas at current densities as low as 0.2Acm(-2). This represents much-improved stability against coking in natural gas, compared with conventional Ni-YSZ anode-supported SOFCs which rapidly coke, even at higher Current densities. Cell operation in H-2 fuel with 50-100 ppm, H2S results in an initial decrease in cell Power density, but no long-term degradation occurs and full recovery to the initial performance level is observed after dry H-2 fuel flow is restored. Degradation is not observed during or after seven redox cycles between H-2 and air. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：1086 / 1093

页数：8

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