Influence of polymeric resin-derived LSM coated YSZ composites on cathodic performance and durability in SOFCs

Hwa Seob Song, Sang Hoon Hyun, Jooho Moon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

(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.

Original languageEnglish
Title of host publicationECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages869-874
Number of pages6
Edition1 PART 1
DOIs
Publication statusPublished - 2007
Event10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan
Duration: 2007 Jun 32007 Jun 8

Publication series

NameECS Transactions
Number1 PART 1
Volume7
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
CountryJapan
Period07/6/307/6/8

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Song, H. S., Hyun, S. H., & Moon, J. (2007). Influence of polymeric resin-derived LSM coated YSZ composites on cathodic performance and durability in SOFCs. In ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X (1 PART 1 ed., pp. 869-874). (ECS Transactions; Vol. 7, No. 1 PART 1). https://doi.org/10.1149/1.2729177