TY - GEN
T1 - Influence of polymeric resin-derived LSM coated YSZ composites on cathodic performance and durability in SOFCs
AU - Song, Hwa Seob
AU - Hyun, Sang Hoon
AU - Moon, Jooho
PY - 2007
Y1 - 2007
N2 - (La, Sr)MnO3 (LSM)-yttria-doped ZrO2 (YSZ) composite was prepared using a polymeric resin-derived LSM precursor coated on the YSZ particles to improve the performance and durability of the solid oxide fuel cell cathode. The synthesized LSM-YSZ composite powder was confirmed by X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscope. The cathodic performance of the symmetrical electrochemical cell with different LSM-YSZ ratios was investigated by measuring with impedance spectroscopy. There was an optimum ratio at which cathodic polarization was minimized because of better homogeneity, longer triple-phase boundary, and sufficient ionic conductivity. A cyclic current loading test was further carried out for rapid evaluation of aging effect of coated composite cathode, which was compared with mechanically mixed LSM-YSZ powder.
AB - (La, Sr)MnO3 (LSM)-yttria-doped ZrO2 (YSZ) composite was prepared using a polymeric resin-derived LSM precursor coated on the YSZ particles to improve the performance and durability of the solid oxide fuel cell cathode. The synthesized LSM-YSZ composite powder was confirmed by X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscope. The cathodic performance of the symmetrical electrochemical cell with different LSM-YSZ ratios was investigated by measuring with impedance spectroscopy. There was an optimum ratio at which cathodic polarization was minimized because of better homogeneity, longer triple-phase boundary, and sufficient ionic conductivity. A cyclic current loading test was further carried out for rapid evaluation of aging effect of coated composite cathode, which was compared with mechanically mixed LSM-YSZ powder.
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UR - http://www.scopus.com/inward/citedby.url?scp=45249111771&partnerID=8YFLogxK
U2 - 10.1149/1.2729177
DO - 10.1149/1.2729177
M3 - Conference contribution
AN - SCOPUS:45249111771
SN - 9781566775557
SN - 9781566775540
T3 - ECS Transactions
SP - 869
EP - 874
BT - ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
T2 - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Y2 - 3 June 2007 through 8 June 2007
ER -