Enhanced performance of the Sm0.5Sr0.5CoO3 (-) (delta) double layer porous cathode for solid oxide fuel cells
- Authors
- Park, Inyu; Im, Jongmo; Choi, Jinyi; Ahn, Jungmin; Shin, Dongwook
- Issue Date
- Mar-2011
- Publisher
- ELSEVIER
- Keywords
- Double layer porous cathode; Strontium-doped samarium cobaltite; Electrostatic spray deposition; Solid oxide fuel cells
- Citation
- SOLID STATE IONICS, v.184, no.1, pp.35 - 38
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOLID STATE IONICS
- Volume
- 184
- Number
- 1
- Start Page
- 35
- End Page
- 38
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/168940
- DOI
- 10.1016/j.ssi.2010.09.017
- ISSN
- 0167-2738
- Abstract
- Porous strontium-doped samarium cobaltite (Sm0.5Sr0.5CoO3 (-) (delta), SSC) cathode films with nano-porous single layer and nano/micro porous double layer are fabricated by electrostatic spray deposition (ESD) for SOFC applications. The two-step deposition is carried out on disc-type pellets of samarium doped ceria by separate consecutive processes for nano-porous functional layer near the electrode/electrolyte interface and for the micro-porous layer near the electrode surface. Thickness of layers is similar to 1 mu m for nano-porous and similar to 8 mu m for micro-porous layer. The SSC/SDC half-cell with the double layer porous cathode is confirmed to be more effective for decreasing polarization resistance, especially for middle and low frequency ranges, than the single layer nano-porous cathode.
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