LSCM-(YSZ-CGO) composites as improved symmetrical electrodes for solid oxide fuel cells

被引：74

作者：

Ruiz-Morales, Juan Carlos

Canales-Vazquez, Jesus

Ballesteros-Perez, Belen

Pena-Martinez, Juan

Marrero-Lopez, David

Irvine, John T. S.

Nunaz, Pedro ^{[1
]}

机构：

[1] Univ La Laguna, Dipartimento Inorgan, Tenerife, Spain

[2] Renewable Energy Res Lab, Albacete 02006, Spain

[3] ICMAB CSIC, Inst Ciencia Mat Barcelona, Bellaterra 01893, Spain

[4] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2007年 / 27卷 / 13-15期

关键词：

composites; microstructure-final; electrical properties; fuel cell; symmetrical fuel cell;

D O I：

10.1016/j.jeurceramsoc.2007.02.117

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new concept of solid oxide fuel cell (SOFC), recently proposed, using simultaneously the same material (La0.75Sr0.25Cr0.5Mn0.5O3-delta, LSCM), as both, anode and cathode, has been verified. The performance of such new design, symmetrical fuel cells (SFCs). could be improved by using a YSZ/CGO-based composite. The optimum ratio to minimise the series and the polarisation resistances (R-p) under reducing conductions was 1: 1. This composition renders improved RP values by a factor of 2 at 950 degrees C in flowing H, in comparison to LSCM-YSZ composites. Thus, the use of a mixed composite (YSZ-CGO) will allow to extend the applicability of LSCM at temperatures lower than 850 degrees C. LSCN1-(YSZ-CGO) based SFCs offer promising performances, e.g., 0.4 W cm(-2) at 950 degrees C using humidified H, as fuel. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4223 / 4227

页数：5

共 11 条

[1] A symmetrical solid oxide fuel cell demonstrating redox stable perovskite electrodes [J].