Pore orientation of the gadolinia‐doped ceria cathode interlayer for a tubular SOFC using dip‐coating |
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| Authors: | Bo Liang Silong Zhang Shengguo Lu Sheng Sui Jinlei Shang |
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| Affiliation: | 1. Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China;2. ISOFC Dynamic Co. Ltd., Foshan City, China;3. Institute of Fuel Cell, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China;4. Department of Mechanical and Automotive Engineering, Coventry University, Coventry, UK |
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| Abstract: | An active region of cathode interlayer in a tubular solid oxide fuel cell (SOFC) is structurally analyzed using a dual‐beam focused ion beam/scanning electron microscope (FIB/SEM). The GDC (10 mol% gadolinia‐doped ceria) cathode interlayer (about 1 μm in thickness) is dip‐coated, and then sintered on YSZ (8 mol% yttria‐stabilized zirconia) electrolyte. At 1150°C sintering temperature, the pores oriented more along the axial direction than the radial direction. The anisotropy of pore shape is accounted for the withdrawal force during the dip‐coating of the GDC interlayer. |
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| Keywords: | microstructure pores/porosity solid oxide fuel cell |
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