INVESTIGADORES
SERQUIS Adriana Cristina
congresos y reuniones científicas
Título:
Performance of Cobaltite Solid-Oxide Fuel Cell Cathodes with different nano/microstructure
Autor/es:
A. SERQUIS; L. BAQUÉ; N. GRUNBAUM; M. S. MORENO; J. S. YOON; R. ARAUJO; X. ZHANG; H. WANG; A. CANEIRO
Lugar:
Miramare, Trieste, Italia
Reunión:
Conferencia; Conference on From Physical Understanding to Novel Architectures of Fuel Cells; 2007
Institución organizadora:
, ICTP (Abdus Salam International Centre for Theoretical Physics)
Resumen:
The La1-xSrxCo1-yFeyO3-d (cobaltite) are good candidates for solid oxide
fuel cell (SOFC) cathodes because these materials present high ionic and
electronic conductivity, and compatibility with Cerium Gadolinium Oxide (CGO)
electrolytes allowing a lower temperature of operation [1,2]. Most of reported cobaltite
films have been deposited by slurry deposition techniques such as spraying [3],
painting [4], or spin coating [5]. In order to further increase SOFC
performance, it is necessary to understand how the microstructure of the composites
electrodes affects the performance of the system. The aim of this work is to
study the microstructure and electrode resistance of porous electrodes of the
same composition films, i.e. La0.4Sr0.6Co0.8Fe0.2O3-d (LSCFO), deposited by different methods and to
identify the sintering conditions to obtain low cathode overpotential values.