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http://dx.doi.org/10.4191/kcers.2011.48.6.487

Performance of Solid Oxide Fuel Cell with Gradient-structured Thin-film Cathode Composed of Pulsed-laser-deposited Lanthanum Strontium Manganite-Yttria-stabilized Zirconia Composite  

Myung, Doo-Hwan (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Hong, Jong-Ill (Department of Materials Science and Engineering, Yonsei University)
Hwang, Jae-Yeon (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Lee, Jong-Ho (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Lee, Hae-Weon (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Kim, Byung-Kook (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Cho, Sung-Gurl (Department of Semiconductors, Gyeongsang National University)
Son, Ji-Won (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.48, no.6, 2011 , pp. 487-492 More about this Journal
Abstract
The effect of the application of lanthanum strontrium manganite and yttria-stabilized zirconia (LSM-YSZ) nano-composite fabricated by pulsed laser deposition (PLD) as a cathode of solid oxide fuel cell (SOFC) is studied. A gradient-structure thin-film cathode composed of 1 micron-thick LSM-YSZ deposited at an ambient pressure ($P_{amb}$) of 200 mTorr; 2 micron-thick LSM-YSZ deposited at a $P_{amb}$ of 300 mTorr; and 2 micron-thick lanthanum strontium cobaltite (LSC) current collecting layer was fabricated on an anode-supported SOFC with an ~8 micron-thick YSZ electrolyte. In comparison with a 1 micron-thick nano-structure single-phase LSM cathode fabricated by PLD, it was obviously effective to increase triple phase boundaries (TPB) over the whole thickness of the cathode layer by employing the composite and increasing the physical thickness of the cathode. Both polarization and ohmic resistances of the cell were significantly reduced and the power output of the cell was improved by a factor of 1.6.
Keywords
Solid oxide fuel cell; LSM-YSZ nano-composite; Gradient-structured thin-film cathode; Pulsed laser deposition;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
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