TY - JOUR
T1 - LSCM-(YSZ-CGO) composites as improved symmetrical electrodes for solid oxide fuel cells
AU - Irvine, John Thomas Sirr
AU - Ruiz-Morales, JC
AU - Canales-Vasquez, J
AU - Ballesteros-Perez, B
AU - Pena-Marinez, J
AU - Marrero-Lopez, D
AU - Nunez, P
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - composites
KW - microstructure-final
KW - electrical properties
KW - fuel cell
KW - symmetrical fuel cell
KW - ANODE
KW - CATHODES
KW - METHANE
UR - http://www.scopus.com/inward/record.url?scp=34347334542&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2007.02.117
DO - 10.1016/j.jeurceramsoc.2007.02.117
M3 - Article
SN - 0955-2219
VL - 27
SP - 4223
EP - 4227
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
ER -