1. Direct EPD of YSZ Electrolyte Film onto Porous NiO-YSZ Composite Substrate for Reduced-Temperature Operating Anode-Supported SOFC
- Author
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Motohide Matsuda, Kenji Murata, Michihiro Miyake, Takushi Hosomi, and Takehisa Fukui
- Subjects
Materials science ,Thin layers ,General Chemical Engineering ,Non-blocking I/O ,Electrolyte ,Cathode ,Anode ,law.invention ,Electrophoretic deposition ,law ,Electrochemistry ,General Materials Science ,Graphite ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Composite material ,Yttria-stabilized zirconia - Abstract
Electrophoretic deposition (EPD) was used for the fabrication of anode-supported yttria-stabilized zirconia (YSZ) electrolyte films. For the EPD, thin layers of graphite were pre-coated on the surface of a nonconducting porous NiO-YSZ composite anode substrate. Uniform YSZ green films were formed on the reverse sides, which did not have the graphite layers. The specimens were transformed into dense bodies ∼5 to 10 μm thick after being co-fired with the substrates. The cell performance of the ∼5 μm thick dense YSZ films supported on the anode substrates was tested using a La(Sr)Co(Fe)O 3 cathode. Maximum output power densities of ∼0.19, ∼0.61, and ∼1.02 W/cm 2 were attained at 600, 700, and 800°C, respectively.
- Published
- 2005